Duragal Fllooring Systems 4p464h

DURAGAL

®

FLOORING SYSTEM

THE PERFECT SOLUTION FOR SLOPING SITES

Letter of Certification MORGAN CONSULTING ENGINEERS PTY LTD ABN 82 009 859 081

1 GREAT GEORGE STREET PADDINGTON QLD 4064 ◆

STRUCTURAL ◆ CIVIL ◆ HOUSING ◆ FORENSIC ◆

Monday, 12 August 2002 OneSteel Market Mills PO Box 156 NEWCASTLE NSW 2300 Dear Sir, RE:

Structural Engineers Certification DuraGal Flooring Tables

We hereby certify that we have checked the structural aspects of the design tables 1 to 28 in the DuraGal Flooring System Brochure dated August 2002. The tables and accompanying information must be strictly followed, or structural adequacy or statutory compliance may be compromised. We certify that designed using these tables are structurally adequate and in accordance with the Building Code of Australia and relevant SAA Codes of Practice. Yours Faithfully, MORGAN CONSULTING ENGINEERS PTY LTD

Robert N Morgan

Eng

For further information please OneSteel Direct Telephone: 1800 1 STEEL (1800 1 78335) Facsimile: 1800 101 141 Email: [email protected] This brochure contains general information about the use of the DuraGal Flooring System in single storey residential buildings. This information is a guide only and not a substitute for expert advice on how to successfully design and construct a residential building or install a flooring system. Successful design, construction and installation depends on many factors beyond the scope of this brochure, including, for example, correct site preparation, proper care of product prior to installation, workmanship during installation and engineering judgments specific to each installation. Product specification and other information in this brochure may change at any time without further notice. OneSteel does not accept any responsibility for other products named in, for any error in, or omission from, this brochure or for any loss or damage or other consequence arising from the use of this brochure by any person.

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Flooring System Page

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Joist Spans

DuraGal

®

Flooring System

Now you can build a better floor with the DuraGal Flooring System Difficult or sloping site construction can be easily handled by the DuraGal Flooring System. Developed by OneSteel Market Mills, the DuraGal Flooring System is a steel flooring system utilising the higher strength and lighter weight advantages of DuraGal Hollow sections. The DuraGal Flooring System is suitable for a wide range of single storey residential homes, decks and commercial floors. The DuraGal Flooring System has been developed by OneSteel to provide a simple, strong and lightweight modular system to handle difficult or sloping site construction. The system utilises the higher strength and lighter weight advantages of DuraGal hollow sections to produce a floor system that’s suitable for a wide range of building applications.

The many benefits offered by the DuraGal Flooring System has seen it adopted by many leading housing construction companies as their preferred system for sloping sites.

The DuraGal Flooring System is yet another example of the innovative building solutions developed by OneSteel Market Mills.

Suitable for single storey residential homes, decks and commercial floors, it offers the flexibility and ease of installation that can substantially reduce your on site construction costs.

Isn’t it time you started building a better floor with the DuraGal Flooring System?

Why you should use the DuraGal® Flooring System: -

Coating System

●

Quality – OneSteel’s commitment to quality means you can depend on DuraGal products to deliver reliable & consistent quality to site.

Simple and straightforward installation. No welding required. ● Unaffected by termites. ● DuraGal won’t shrink, rot or warp like timber, helping to reduce expensive callbacks. ● Larger spans, which can open up underfloor areas for use as workshop or storage. ● Improved underfloor access and ventilation. (less piers) ● The costs of site preparation such as, cut and fill, retaining walls and drainage can be minimised. ● Has the advantage of higher strength, lightweight, and corrosion resistant* DuraGal hollow steel sections. ● Manufactured to tight tolerances. ● Longer lengths. ● Comprehensive range of standard fittings to suit most applications. ● Floor sheets can still fixed by traditional methods. ● Australian made and available nationally

Versatility – New span tables for live loads of 1.5kPa, 3.0kPa and 5.0kPa, means the DuraGal Flooring System is now more versatile than ever.

* Refer to pages 22 to 29 of this publication for more details on corrosive environments & appropriate precautions during installation of exposed floors .

Features friendly – Requires only normal trade and electrical tools, no welding is involved. Fast and accurate levelling of the floor during or after construction is a great feature, and compensates for variations in the footings, now or later. Surface Protection – Internally painted DuraGal hollow sections have an In-line hot dip, galvanized coating with a minimum average coating mass of 100g/m2 applied to the external surface, the internal surface is coated with a 35 micron thick Zinc Phosphate coating. Recommended for use in non-aggressive environments*.

Cleaned Surface

●

Internally Painted Surface Conversion Coating

In-line Hot-dip Galvanized Coating

Selection of materials In the construction of a floor system, building products manufactured by OneSteel Market Mills, and building products manufactured by other companies will be used. The product information in this publication relates solely to the products manufactured by OneSteel Market Mills. It is strongly recommended that only DuraGal Internally painted hollow sections manufactured by OneSteel be specified for use when using the design information in this publication. Testing using only OneSteel Products has validated the design criteria contained within this publication. It is recommended a note to this effect is included on any design documentation. august 02 DuraGal

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Flooring System Page

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DuraGal

®

Flooring System

What the s Say Mr. Bruce Louis Production & Design Manager, AV Jennings Homes, Wyong NSW.

‘With fluctuating timber prices and instability of supply, we looked for an alternative system to the traditional timber bearers and joists for construction of elevated floors on sloping sites. After trialing several systems we adopted the DuraGal® Flooring System as our preferred option as it offers the best and

Contents Letter of Certification ........................ 2 Features & Benefits ..........................3

most cost effective solution for our company.” “An added benefit provided by this system is that it offers extra useable space under the floor which is used as a real selling feature.”

Mr. Dennis McColl

What s Say ........................ 4 Joist Spans For 1.5 kPa Floors ........................ 5 Bearer Spans For 1.5 kPa Floors ........................ 6

Managing Director, Aus Steel, Beresfield, NSW.

Joist Spans For 3 & 5 kPa Floors..................... 7 “It enables you to keep the floor nice and straight. We have also used the system a lot in patios, especially where there is no underfloor lining. It is a good, neat section that finishes off well.”

Bearer Spans For 3 & 5 kPa Floors....................... 8 Cantilever Spans For 1.5 kPa Floors....................... 9 Cantilever Spans For 3 kPa Floors................... 10

Mr. Jason Watts Production Manager, Executive Homes, Country Victoria and Southern NSW.

“The DuraGal Flooring System provides us with a flexible building system well ®

suited to a wide range of home designs and site conditions. The major benefits

Cantilever Spans For 5 kPa Floors.................... 11 Assembly - Brick Veneer....................... 12

to us include, being galvanized steel, being resistant to termite attack, easy to

Assembly - Free Standing ...................... 13

install, and providing a strong low maintenance system. Whenever an elevated

Bracing Details ...................... 15

floor is required we would recommend the DuraGal® Flooring System to our clients.”

Connections - Capacities ...................... 16 Footing Details ...................... 17 Construction Hints ...................... 18 Accessories ...................... 19 Termite Barriers ...................... 21 Corrosion Guide ...................... 22 Sealing of Fittings ........................24 Nailing ...................... 30 Cutting ...................... 30

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Joist Spans For 1.5 kPa Domestic Floors Cyclonic & Non Cyclonic Regions

Flooring System

Continuous Span (SEE NOTE 2 - DESIGN CRITERIA)

Single Span TABLE 1 – JOISTS FOR 1.5 kPa FLOORS DURAGAL JOIST SPACING (mm) C450L0 4501 600 RHS SIZE2 MAXIMUM JOIST SPAN (m)

1

TABLE 2 – JOISTS FOR 1.5 kPa FLOORS DURAGAL JOIST SPACING (mm) C450L0 4501 600 RHS SIZE2 MAXIMUM SPAN (m)

1.5kPa

75 x 50x 1.6

2.52

2.39

75 x 50 x 1.6

2.14

2.05

x 2.0

2.72

2.57

x 2.0

2.30

2.20

100 x 50 x 1.6

3.31

3.10

100 x 50 x1.6

2.78

2.65

x 2.0

3.59

3.34

x 2.0

3.00

2.85

150 x 50 x 2.0

5.46

4.95

150 x 50 x 2.0

4.44

4.16

x 2.5

5.74

5.34

x 3.0

5.98

5.56

x 4.0

6.31

5.88

x 2.5

4.81

4.49

x 3.0

5.13

4.77

x 4.0

5.52

5.20

x 5.0

6.45

6.14

x 5.0

5.65

5.41

x 6.0

6.55

6.28

x 6.0

5.73

5.50

OneSteel Market Mills recommend 450mm joist spacing.

1

OneSteel Market Mills recommend 450mm joist spacing.

2

Preferred internally painted sizes shown in bold print. For availability of other internally painted sizes we recommend you consult the DuraGal Flooring System supplier in your area. This table also applies to decks with floor areas greater than 40m2

2

Preferred internally painted sizes shown in bold print. For availability of other internally painted sizes we recommend you consult the DuraGal Flooring System supplier in your area. 3 This table also applies to decks with floor areas greater than 40m2

DESIGN CRITERIA 1. Span Tables 1 to 4 & 13 to 16 have been calculated in accordance with AS 3623: Domestic metal framing, AS 4100: Steel Structures, AS1170.1: Dead and Live Loading, with Live Load, Q equal to 1.5kPa, and Dead Load, G equal to 0.4kPa. 2. For continuous span where the variation between adjacent spans exceeds 30% of the larger span, the single span tables must be used. 3. Tables are available on request for: - Live loads other than 1.5, 3 & 5kPa - DuraGal sizes not given in Table 1 to 6 4. If additional loads are applied the advice of a Structural Engineer must be sought.

3

FLOOR STIFFNESS • The maximum spans given in Table 1 to 4 comply with the Australian Standard AS 3623 - Domestic Metal Framing. • The spans given for the joists in Tables 1 and 2 are the maximum recommended spans and as such not all s will be satisfied with the stiffness of the floor. For those desiring a stiffer floor either the spans tabulated can be reduced, the joist spacing reduced, or both.

• If you need guidance for large open areas, areas not ing roof and wall loads, or to achieve the floor stiffness you require, consult your DuraGal Flooring System Supplier who can provide advice on the floor design to meet your needs.

• Joist spacing of 450mm spans calculated using 19mm particle board or 15mm F14 plywood floor sheeting. Joist spacing of 600mm spans calculated using 22mm floor sheeting.

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Bearer Spans For 1.5 kPa Domestic Floors Cyclonic & Non Cyclonic Regions

Flooring System

Single Span DURAGAL C450L0 RHS SIZE1 100 x 50 x 2.0

TABLE 3 – BEARERS FOR 1.5 kPa FLOORS JOIST SPAN (m) 1.80 2.10 2.40 2.70 3.00 3.60 4.20 4.80 MAXIMUM BEARER SPAN (m) 1.98

1.88

1.80

1.73

1.67

1.57

Continuous Span (SEE NOTE 2 - DESIGN CRITERIA PAGE 5) 5.40

6.00

1.5kPa DURAGAL C450L0 RHS SIZE1

1.49

125 x 75 x 2.0

2.60

2.47

2.36

2.27

2.19

2.06

1.95

1.87

x 2.5

2.78

2.64

2.52

2.43

2.34

2.20

2.09

2.00

1.93

x 3.0

2.93

2.78

2.65

2.55

2.46

2.32

2.20

2.11

2.03

1.96

150 x 50 x 2.0

2.78

2.64

2.53

2.43

2.35

2.21

2.10

2.01

1.93

1.86

x 2.5

2.97

2.82

2.70

2.60

2.51

2.36

2.24

2.14

2.06

1.99

x 3.0

3.14

2.98

2.85

2.74

2.65

2.49

2.37

2.26

2.18

2.10

x 4.0

3.38

3.21

3.07

2.95

2.85

2.68

2.55

2.44

2.34

2.26

x 5.0

3.58

3.40

3.25

3.13

3.02

2.84

2.70

2.58

2.48

2.40

x 6.0

3.74

3.55

3.40

3.27

3.15

2.97

2.82

2.70

2.59

2.50

3

This table also applies to decks with floor areas greater than 40m2

2.65

2.52

2.41

2.32

2.24

2.10

3.48

3.30

3.11

2.94

2.79

2.54

2.35

2.20

x 2.5

3.72

3.54

3.38

3.25

3.14

2.95

2.80

2.61

2.47

x 3.0

3.93

3.72

3.55

3.42

3.30

3.11

2.95

2.83

2.72

150 x 50 x 2.0

3.73

3.54

3.39

3.26

3.14

2.88

2.66

2.49

2.35

2.23

x 2.5

3.99

3.79

3.62

3.48

3.36

3.16

3.00

2.87

2.75

2.61

x 3.0

4.21

4.00

3.82

3.68

3.55

3.34

3.17

3.03

2.92

2.82

x 4.0

4.53

4.31

4.12

3.96

3.82

3.60

3.42

3.27

3.14

3.03

x 5.0

4.80

4.56

4.36

4.19

4.05

3.81

3.62

3.46

3.33

3.21

x 6.0

5.01

4.76

4.56

4.38

4.23

3.98

3.78

3.62

3.48

3.36

This table also applies to decks with floor areas greater than 40m2

In typical applications, the most economical DuraGal Floor will result from the use of 150x50x2.0 bearers and joists of either 100x50x1.6 or 75x50x1.6. To ensure optimal floor performance, joists spaced at 450mm centres are recommended.

The bearer span is determined with a minimum joist span of 3.6m even if the actual joist span is less, and The maximum roof load width is 4m for tile roof, and 6m for steel sheet roof, and The bearer is on the perimeter, parallel and directly beneath the load-bearing wall and is not subjected to concentrated loads from jambing studs.

PERIMETER BEARERS ON ADJUSTABLE PIERS PERIMETER BEARERS ON BRICK PIERS

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2.63

Preferred internally painted sizes shown in bold print. For availability of other internally painted sizes we recommend you consult the DuraGal Flooring System supplier in your area. 2 Refer notes on load bearing walls below.

the bearer, and

The pier adjustable top connection and U-Bracket is used to

1.99

1

PREFERRED BEARER AND JOIST SIZES

The sizes and bearer spans given in tables 3 and 4 are suitable for use under load bearing walls for single storey construction providing the following criteria is satisfied:

6.00

125 x 75 x 2.0

3

When selecting bearer and joist sizes refer to page 19 of this guide for availability of standard ers.

5.40

100 x 50 x 2.0

1

Preferred internally painted sizes shown in bold print. For availability of other internally painted sizes we recommend you consult the DuraGal Flooring System supplier in your area. 2 Refer notes on load bearing walls below.

TABLE 4 – BEARERS FOR 1.5 kPa FLOORS JOIST SPAN (m) 1.80 2.10 2.40 2.70 3.00 3.60 4.20 4.80 MAXIMUM BEARER SPAN (m)

The range of sizes suitable for bearers under load bearing walls when ed over brick piers for a 1.5kPa floor live load are restricted to 125x75 and 150x50 of 2.0mm or thicker as given in tables 3 and 4, and for a joist span of

3.6m or less. For joist spans greater than 3.6m up to 6m suitable bearer sizes are 125x75, 150x50 of 2.5mm or thicker. In addition, the following criteria must also be satisfied: The maximum brick pier spacing is 2m for continuous spans and a maximum of 1.8m for single spans, and At least 200mm of for the full width of the bearer at each brick pier, and The maximum roof load width is 5m for tile roof and 8m for steel sheet roof (refer page 12), and The bearer is on the perimeter, parallel and directly beneath the load-bearing wall and is not subjected to concentrated loads from jambing studs.

Joist Spans For 3kPa & 5 kPa Commercial Floors Cyclonic & Non Cyclonic Regions

Flooring System

Single Span

Continuous Span

TABLE 5 – JOISTS FOR 3 kPa FLOORS DURAGAL JOIST SPACING (mm) C450L0 4501 600 RHS SIZE2 MAXIMUM JOIST SPAN (m)

1

(SEE NOTE 2 - DESIGN CRITERIA) TABLE 6 – JOISTS FOR 3 kPa FLOORS DURAGAL JOIST SPACING (mm) C450L0 4501 600 RHS SIZE2 MAXIMUM SPAN (m)

3kPa

75 x 50 x 1.6

2.14

2.05

75 x 50x 1.6

2.52

2.39

x 2.0

2.30

2.20

x 2.0

2.72

2.55

100 x 50 x1.6

2.78

2.65

100 x 50 x 1.6

3.24

2.71

3.54

3.22

x 2.0

3.00

2.85

x 2.0

150 x 50 x 2.0

4.29

3.99

150 x 50 x 2.0

4.59

3.83

x 2.5

4.51

4.20

x 2.5

4.83

4.49

x 3.0

4.69

4.37

x 3.0

5.03

4.68

x 4.0

4.96

4.62

x 4.0

5.32

4.95

x 5.0

5.18

4.82

x 5.0

5.55

5.17

x 6.0

5.36

4.98

x 6.0

5.73

5.34

1

OneSteel Market Mills recommend 450mm joist spacing.

2

OneSteel Market Mills recommend 450mm joist spacing.

2

Preferred internally painted sizes shown in bold print. For availability of other internally painted sizes we recommend you consult the DuraGal Flooring System supplier in your area. 3 This table also applies to decks with floor areas less than 40m2

Preferred internally painted sizes shown in bold print. For availability of other internally painted sizes we recommend you consult the DuraGal Flooring System supplier in your area. 3 This table also applies to decks with floor areas less than 40m2

Single Span

Continuous Span (SEE NOTE 2 - DESIGN CRITERIA)

TABLE 7 – JOISTS FOR 5 kPa FLOORS DURAGAL JOIST SPACING (mm) C450L0 4501 600 RHS SIZE2 MAXIMUM JOIST SPAN (m)

TABLE 8 – JOISTS FOR 5 kPa FLOORS DURAGAL JOIST SPACING (mm) C450L0 4501 600 RHS SIZE2 MAXIMUM SPAN (m)

5kPa

75 x 50 x 1.6

2.02

1.84

75 x 50x 1.6

2.21

1.87

x 2.0

2.16

1.96

x 2.0

2.37

2.15

100 x 50 x1.6

2.55

2.32

100 x 50 x 1.6

2.37

1.96

x 2.0

2.73

2.48

x 2.0

2.99

2.70

150 x 50 x 2.0

3.77

3.48

150 x 50 x 2.0

3.31

2.69

x 2.5

3.97

3.69

x 2.5

4.25

3.83

x 3.0

4.13

3.84

x 3.0

4.42

4.12

x 4.0

4.37

4.07

x 4.0

4.68

4.35

x 5.0

4.56

4.25

x 5.0

4.88

4.55

x 6.0

4.71

4.39

x 6.0

5.05

4.70

1

OneSteel Market Mills recommend 450mm joist spacing.

1

OneSteel Market Mills recommend 450mm joist spacing.

2

Preferred internally painted sizes shown in bold print. For availability of other internally painted sizes we recommend you consult the DuraGal Flooring System supplier in your area.

2

Preferred internally painted sizes shown in bold print. For availability of other internally painted sizes we recommend you consult the DuraGal Flooring System supplier in your area.

DESIGN CRITERIA 1. Span Tables 5 to 12 & 17 to 24 have been calculated in accordance with AS 3623: Domestic metal framing, AS 4100: Steel Structures, AS1170.1: Dead and Live Loading, with 3kPa Tables,Live Load Q=3kPa, Dead Load G=0.657kPa 5kPa Tables,Live Load Q=5kPa, Dead Load G=1.0kPa 2. For continuous span where the variation between adjacent spans exceeds 30% of the larger span, the single span tables must be used. 3. Tables are available on request for: - Live loads other than 1.5, 3 & 5kPa - DuraGal sizes not given in Table 1 to 12 4. If additional loads are applied the advice of a Structural Engineer must be sought.

FLOOR STIFFNESS • The maximum spans given in Table 1 to 4 comply with the Australian Standard AS 3623 - Domestic Metal Framing. • The spans given for the joists in Tables 5 to 8 are the maximum recommended spans and as such not all s will be satisfied with the stiffness of the floor. For those desiring a stiffer floor either the spans tabulated can be reduced, the joist spacing reduced, or both.

• If you need guidance for large open areas, areas not ing roof and wall loads, or to achieve the floor stiffness you require, consult your DuraGal Flooring System Supplier who can provide advice on the floor design to meet your needs.

• Joist spacing of 450mm spans calculated using 19mm particle board or 15mm F14 plywood floor sheeting. Joist spacing of 600mm spans calculated using 22mm floor sheeting.

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Bearer Spans For 3kPa & 5 kPa Commercial Floors Cyclonic & Non Cyclonic Regions

Flooring System

Continuous Span

Single Span

(SEE NOTE 2 - DESIGN CRITERIA PAGE 7)

TABLE 9 – BEARERS FOR 3 kPa FLOORS JOIST SPAN (m) 2.10 2.40 2.70 3.00 3.60 4.20 4.80 MAXIMUM BEARER SPAN2 (m)

3kPa

TABLE 10 – BEARERS FOR 3 kPa FLOORS JOIST SPAN (m) 1.80 2.10 2.40 2.70 3.00 3.60 4.20 4.80 MAXIMUM BEARER SPAN2 (m)

5.40

6.00

DURAGAL C450L0 RHS SIZE1

1.13

1.09

1.05

100 x 50 x 2.0

2.11

2.00

1.91

1.81

1.72

1.57

1.45

1.48

1.43

1.38

125 x 75 x 2.0

2.59

2.40

2.24

2.12

2.01

1.83

1.70

1.66

1.59

1.53

1.47

x 2.5

2.95

2.81

2.65

2.50

2.37

2.17

DURAGAL C450L0 RHS SIZE1

1.80

100 x 50 x 2.0

1.57

1.49

1.43

1.37

1.33

1.25

1.18

125 x 75 x 2.0

2.06

1.95

1.87

1.80

1.74

1.63

1.55

x 2.5

2.20

2.09

2.00

1.92

1.86

1.75

5.40

6.00

1.36

1.28

1.22

1.59

1.50

1.42

2.01

1.88

1.77

1.68 1.94

x 3.0

2.32

2.21

2.11

2.03

1.96

1.84

1.75

1.68

1.61

1.56

x 3.0

3.12

2.96

2.83

2.72

2.63

2.47

2.32

2.17

2.05

150 x 50 x 2.0

2.21

2.10

2.00

1.93

1.86

1.75

1.66

1.59

1.53

1.48

150 x 50 x 2.0

2.93

2.71

2.53

2.39

2.27

2.07

1.92

1.79

1.69

1.60

x 2.5

2.36

2.24

2.14

2.06

1.99

1.87

1.78

1.70

1.64

1.58

x 2.5

3.16

3.01

2.87

2.76

2.66

2.43

2.25

2.10

1.98

1.88

x 3.0

2.49

2.37

2.26

2.18

2.10

1.98

1.88

1.80

1.73

1.67

x 3.0

3.34

3.17

3.03

2.92

2.82

2.64

2.44

2.28

2.15

2.04

x 4.0

2.68

2.55

2.44

2.34

2.26

2.13

2.02

1.94

1.86

1.80

x 4.0

3.60

3.42

3.27

3.14

3.03

2.86

2.71

2.58

2.43

2.30

x 5.0

2.84

2.70

2.58

2.48

2.40

2.26

2.14

2.05

1.97

1.90

x 5.0

3.81

3.62

3.46

3.33

3.21

3.03

2.87

2.75

2.64

2.53

x 6.0

2.97

2.82

2.70

2.59

2.50

2.36

2.24

2.14

2.06

1.99

x 6.0

3.98

3.78

3.62

3.48

3.36

3.16

3.00

2.87

2.76

2.67

5.40

6.00

1

1

Preferred internally painted sizes shown in bold print. For availability of other internally painted sizes we recommend you consult the DuraGal Flooring System supplier in your area. 2 Refer notes on load bearing walls below 3 This table also applies to decks with floor areas less than 40m2

Preferred internally painted sizes shown in bold print. For availability of other internally painted sizes we recommend you consult the DuraGal Flooring System supplier in your area. 2 Refer notes on load bearing walls below 3

This table also applies to decks with floor areas less than 40m2

Continuous Span

Single Span DURAGAL C450L0 RHS SIZE1

(SEE NOTE 2 - DESIGN CRITERIA PAGE 7)

TABLE 11 – BEARERS FOR 5 kPa FLOORS JOIST SPAN (m) 1.80 2.10 2.40 2.70 3.00 3.60 4.20 4.80 MAXIMUM BEARER SPAN2 (m)

5kPa 5.40

6.00

DURAGAL C450L0 RHS SIZE1

TABLE 12 – BEARERS FOR 5 kPa FLOORS JOIST SPAN (m) 1.80 2.10 2.40 2.70 3.00 3.60 4.20 4.80 MAXIMUM BEARER SPAN2 (m)

100 x 50 x 2.0

1.60

1.52

1.45

1.39

1.34

1.22

1.13

1.06

1.00

100 x 50 x 2.0

1.73

1.60

1.50

1.41

1.34

1.22

1.13

1.06

125 x 75 x 2.0

2.02

1.87

1.75

1.65

1.57

1.43

1.32

1.24

1.17

1.11

125 x 75 x 2.0

2.02

1.87

1.75

1.65

1.57

1.43

1.32

1.24

1.17

1.11

x 2.5

2.24

2.12

2.03

1.95

1.85

1.69

1.57

1.46

1.38

1.25

x 2.5

2.39

2.21

2.07

1.95

1.85

1.69

1.57

1.46

1.38

1.31 1.52

1.00

x 3.0

2.36

2.24

2.14

2.06

1.99

1.87

1.78

1.69

1.60

1.52

x 3.0

2.59

2.46

2.35

2.26

2.14

1.96

1.81

1.69

1.60

150 x 50 x 2.0

2.24

2.11

1.98

1.86

1.77

1.61

1.49

1.33

1.18

1.06

150 x 50 x 2.0

2.28

2.11

1.98

1.86

1.77

1.61

1.49

1.40

1.32

1.19

x 2.5

2.40

2.28

2.18

2.09

2.02

1.89

1.75

1.64

1.55

1.47

x 2.5

2.63

2.48

2.32

2.19

2.07

1.89

1.75

1.64

1.55

1.47

x 3.0

2.53

2.40

2.30

2.21

2.13

2.01

1.90

1.78

1.68

1.59

x 3.0

2.77

2.63

2.52

2.38

2.25

2.06

1.90

1.78

1.68

1.59

x 4.0

2.73

2.59

2.48

2.38

2.30

2.16

2.05

1.97

1.89

1.80

x 4.0

2.99

2.84

2.71

2.61

2.52

2.32

2.15

2.01

1.89

1.80

x 5.0

2.89

2.74

2.62

2.52

2.43

2.29

2.18

2.08

2.00

1.93

x 5.0

3.16

3.00

2.87

2.76

2.67

2.51

2.36

2.21

2.08

1.97

x 6.0

3.02

2.86

2.74

2.63

2.54

2.39

2.27

2.17

2.09

2.02

x 6.0

3.30

3.14

3.00

2.89

2.79

2.62

2.49

2.37

2.24

2.12

1

Preferred internally painted sizes shown in bold print. For availability of other internally painted sizes we recommend you consult the DuraGal Flooring System supplier in your area. 2 Refer notes on load bearing walls below

PREFERRED

BEARER

AND

JOIST

1

Preferred internally painted sizes shown in bold print. For availability of other internally painted sizes we recommend you consult the DuraGal Flooring System supplier in your area. 2 Refer notes on load bearing walls below

span of 3.6m even if the actual joist span is less, and

SIZES

When selecting bearer and joist sizes refer to page 19 of this guide for availability of standard ers.

- The maximum roof load width is 4m for tile roof, and 6m for steel sheet roof, and

PERIMETER BEARERS ON ADJUSTABLE PIERS

- The bearer is on the perimeter, parallel and directly beneath the load-bearing wall and is not subjected to concentrated loads from jambing studs.

The sizes and bearer spans given in tables 9 to 12 are suitable for use under load bearing walls for single storey construction providing the following criteria is satisfied:

PERIMETER BEARERS ON BRICK PIERS The range of sizes suitable for bearers under load bearing walls when ed over brick piers for a 1.5kPa floor live load are restricted to 125x75 & 150x50 of 2.5mm or thicker as given in tables 9 to 12, and for a joist span of 3.6m or less. For joist spans greater than

- The pier adjustable top connection and U-Bracket is used to the bearer, and - The bearer span is determined with a minimum joist

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3.6m up to 6m suitable bearer sizes are 150x50 of 4.0mm or thicker. In addition, the following criteria must also be satisfied: - The maximum brick pier spacing is 2m for continuous spans and a maximum of 1.8m for single spans, and - At least 200mm of for the full width of the bearer at each brick pier, and - The maximum roof load width is 5m for tile roof and 8m for steel sheet roof (refer page 12), and - The bearer is on the perimeter, parallel and directly beneath the load-bearing wall and is not subjected to concentrated loads from jambing studs.

Cantilever Spans For 1.5 kPa Domestic Floors Cyclonic & Non Cyclonic Regions

Flooring System

Joists Non Cyclonic

Cyclonic

TABLE 13 – MAXIMUM SPAN OF CANTILEVER JOISTS – 1.5 kPa MAXIMUM CANTILEVER SPAN (m) Joist Spacing = 450mm Joist Spacing = 600mm NO ROOF SHEET TILE NO ROOF SHEET TILE LOADING ROOF* ROOF* LOADING ROOF* ROOF*

1.5kPa

DURAGAL JOIST C450L0 RHS SIZE1

75 x 50 x 1.6 x 2.0 100 x 50 x 1.6 x 2.0 150 x 50 x 2.0 x 2.5 x 3.0 x 4.0 x 5.0 x 6.0

0.53 0.58 0.74 0.81 1.29 1.39 1.45 1.55 1.62 1.67

0.18 0.20 0.27 0.30 0.52 0.59 0.65 0.75 0.85 0.93

0.10 0.12 0.16 0.18 0.31 0.36 0.40 0.47 0.54 0.59

0.47 0.51 0.65 0.72 1.14 1.25 1.33 1.43 1.50 1.55

0.15 0.17 0.22 0.25 0.44 0.49 0.55 0.63 0.70 0.76

TABLE 14 – MAXIMUM SPAN OF CANTILEVER JOISTS – 1.5 kPa MAXIMUM CANTILEVER SPAN (m) DURAGAL JOIST Joist Spacing = 450mm Joist Spacing = 600mm C450L0 NO ROOF SHEET TILE NO ROOF SHEET TILE RHS SIZE1 LOADING ROOF* ROOF* LOADING ROOF* ROOF* 75 x 50 x 1.6 x 2.0 100 x 50 x 1.6 x 2.0 150 x 50 x 2.0 x 2.5 x 3.0 x 4.0 x 5.0 x 6.0

0.08 0.09 0.13 0.14 0.26 0.29 0.33 0.38 0.43 0.48

0.53 0.58 0.74 0.81 1.29 1.39 1.45 1.55 1.62 1.67

0.07 0.07 0.10 0.11 0.20 0.24 0.26 0.31 0.36 0.40

Non Cyclonic

Cyclonic

TABLE 15 – MAXIMUM SPAN OF CANTILEVER BEARERS – NON CYCLONIC - 1.5 kPa DURAGAL MAXIMUM CANTILEVER SPAN (m) BEARER NO ROOF SHEET TILE C450L0 ROOF* RHS SIZE1 LOADING ROOF*

TABLE 16 – MAXIMUM SPAN OF CANTILEVER BEARERS – CYCLONIC - 1.5 kPa DURAGAL MAXIMUM CANTILEVER SPAN (m) BEARER NO ROOF SHEET TILE C450L0 ROOF* RHS SIZE1 LOADING ROOF*

0.21 0.32 0.36 0.40 0.36 0.40 0.44 0.50 0.54 0.58

0.05 0.06 0.08 0.09 0.17 0.19 0.22 0.25 0.29 0.32

0.07 0.08 0.11 0.13 0.23 0.26 0.29 0.34 0.39 0.43

Design Criteria

Bearers

0.44 0.50 0.70 0.75 0.48 0.77 0.82 0.91 0.96 1.01

0.47 0.51 0.65 0.72 1.14 1.25 1.33 1.43 1.50 1.55

*MAXIMUM ROOF LOAD WIDTH = 5m 1 Preferred internally painted sizes shown in bold print. For availability of other internally painted sizes we recommend you consult the DuraGal Flooring System supplier in your area.

*MAXIMUM ROOF LOAD WIDTH = 5m 1 Preferred internally painted sizes shown in bold print. For availability of other internally painted sizes we recommend you consult the DuraGal Flooring System supplier in your area.

100 x 50 x 2.0 125 x 75 x 2.0 x 2.5 x 3.0 150 x 50 x 2.0 x 2.5 x 3.0 x 4.0 x 5.0 x 6.0

0.09 0.10 0.14 0.16 0.28 0.32 0.36 0.42 0.48 0.53

1.5kPa

0.12 0.20 0.23 0.25 0.23 0.26 0.29 0.33 0.36 0.39

*MAXIMUM ROOF LOAD WIDTH = 1.8m 1 Preferred internally painted sizes shown in bold print. For availability of other internally painted sizes we recommend you consult the DuraGal Flooring System supplier in your area.

100 x 50 x 2.0 125 x 75 x 2.0 x 2.5 x 3.0 150 x 50 x 2.0 x 2.5 x 3.0 x 4.0 x 5.0 x 6.0

0.44 0.50 0.70 0.75 0.48 0.77 0.82 0.91 0.96 1.01

0.08 0.14 0.15 0.17 0.15 0.18 0.19 0.22 0.25 0.27

0.11 0.18 0.21 0.23 0.21 0.24 0.26 0.30 0.33 0.36

*MAXIMUM ROOF LOAD WIDTH = 1.8m 1 Preferred internally painted sizes shown in bold print. For availability of other internally painted sizes we recommend you consult the DuraGal Flooring System supplier in your area.

1. Roof Dead Load, G used is 0.4kPa for Steel Roof and 0.9kPa for Tile Roof, and Roof Live Load used is 0.25kPa. 2. Live Loads, Q used on cantilever are: ∗ 1.5kPa for cantilevers ing Sheet and Tile Roof ∗ 3.0kPa & 1.5kN/m run on edge for “No Roof Load” Live Loads used on backspan: ∗ 0kPa for floors ing Sheet and Tile Roof ∗ 0.3kPa for “No Roof Load” 3. Wind Loads used in Tables 14 and 16 are determined in accordance with AS 4055: Wind loads for housing, for maximum “C3” wind category. 4. Maximum roof load width is equal to 5m for joists and 1.8m for bearers. 5. For cantilever balcony not ing a roof use “No Roof Loading” column. 6. Maximum bearer spacing for Table 15 and 16 is 3.6m. 7. If additional loads are applied the advice of a Structural Engineer must be sought.

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Cantilever Spans For 3 kPa Commercial Floors Cyclonic & Non Cyclonic Regions

Flooring System

Joists Non Cyclonic

Cyclonic

TABLE 17 – MAXIMUM SPAN OF CANTILEVER JOISTS – 3 kPa MAXIMUM CANTILEVER SPAN (m) DURAGAL JOIST Joist Spacing = 450mm Joist Spacing = 600mm C450L0 NO ROOF SHEET TILE NO ROOF SHEET TILE RHS SIZE1 LOADING ROOF* ROOF* LOADING ROOF* ROOF* 75 x 50 x 1.6 x 2.0 100 x 50 x 1.6 x 2.0 150 x 50 x 2.0 x 2.5 x 3.0 x 4.0 x 5.0 x 6.0

0.53 0.57 0.71 0.78 1.12 1.20 1.27 1.37 1.43 1.49

0.18 0.20 0.26 0.29 0.54 0.61 0.67 0.76 0.84 0.91

0.10 0.12 0.16 0.17 0.35 0.40 0.44 0.51 0.57 0.62

0.48 0.52 0.60 0.69 0.96 1.08 1.15 1.24 1.31 1.37

0.14 0.16 0.24 0.25 0.49 0.52 0.57 0.65 0.72 0.77

TABLE 18 – MAXIMUM SPAN OF CANTILEVER JOISTS – 3 kPa MAXIMUM CANTILEVER SPAN (m) DURAGAL JOIST Joist Spacing = 450mm Joist Spacing = 600mm C450L0 NO ROOF SHEET TILE NO ROOF SHEET TILE RHS SIZE1 LOADING ROOF* ROOF* LOADING ROOF* ROOF*

3kPa

0.08 0.09 0.14 0.15 0.31 0.33 0.37 0.43 0.48 0.52

75 x 50 x 1.6 x 2.0 100 x 50 x 1.6 x 2.0 150 x 50 x 2.0 x 2.5 x 3.0 x 4.0 x 5.0 x 6.0

*MAXIMUM ROOF LOAD WIDTH = 5m 1 Preferred internally painted sizes shown in bold print. For availability of other internally painted sizes we recommend you consult the DuraGal Flooring System supplier in your area.

0.54 0.59 0.73 0.80 1.14 1.22 1.29 1.37 1.43 1.49

0.07 0.08 0.11 0.12 0.26 0.29 0.33 0.38 0.43 0.47

Non Cyclonic

Cyclonic TABLE 20 – MAXIMUM SPAN OF CANTILEVER BEARERS – CYCLONIC - 3 kPa DURAGAL MAXIMUM CANTILEVER SPAN (m) BEARER NO ROOF SHEET TILE C450L0 ROOF* RHS SIZE1 LOADING ROOF*

0.22 0.35 0.37 0.40 0.38 0.41 0.45 0.50 0.54 0.57

0.14 0.24 0.26 0.28 0.26 0.29 0.32 0.36 0.40 0.42

*MAXIMUM ROOF LOAD WIDTH = 1.8m Preferred internally painted sizes shown in bold print. For availability of other internally painted sizes we recommend you consult the DuraGal Flooring System supplier in your area.

®

Flooring System Page

3kPa

100 x 50 x 2.0 125 x 75 x 2.0 x 2.5 x 3.0 150 x 50 x 2.0 x 2.5 x 3.0 x 4.0 x 5.0 x 6.0

1

august 02 DuraGal

0.06 0.07 0.10 0.10 0.23 0.24 0.27 0.31 0.35 0.39

0.08 0.09 0.14 0.14 0.31 0.32 0.36 0.42 0.47 0.51

Design Criteria

TABLE 19 – MAXIMUM SPAN OF CANTILEVER BEARERS – NON CYCLONIC - 3 kPa DURAGAL MAXIMUM CANTILEVER SPAN (m) BEARER NO ROOF SHEET TILE C450L0 ROOF* RHS SIZE1 LOADING ROOF* 0.40 0.35 0.61 0.65 0.31 0.56 0.71 0.78 0.83 0.88

0.49 0.53 0.62 0.71 0.99 1.11 1.17 1.26 1.33 1.37

*MAXIMUM ROOF LOAD WIDTH = 5m 1 Preferred internally painted sizes shown in bold print. For availability of other internally painted sizes we recommend you consult the DuraGal Flooring System supplier in your area.

Bearers

100 x 50 x 2.0 125 x 75 x 2.0 x 2.5 x 3.0 150 x 50 x 2.0 x 2.5 x 3.0 x 4.0 x 5.0 x 6.0

0.10 0.11 0.15 0.17 0.34 0.39 0.44 0.51 0.56 0.61

10

0.40 0.35 0.61 0.65 0.31 0.56 0.71 0.78 0.83 0.88

0.10 0.17 0.18 0.20 0.18 0.21 0.23 0.26 0.29 0.31

0.13 0.22 0.24 0.26 0.24 0.27 0.29 0.33 0.37 0.39

*MAXIMUM ROOF LOAD WIDTH = 1.8m 1 Preferred internally painted sizes shown in bold print. For availability of other internally painted sizes we recommend you consult the DuraGal Flooring System supplier in your area.

1. Roof Dead Load, G used is 0.4kPa for Steel Roof and 0.9kPa for Tile Roof, and Roof Live Load used is 0.25kPa. 2. Live Loads, Q used on cantilever are: ∗ 3.0kPa for cantilevers ing Sheet and Tile Roof ∗ 6.0kPa & 1.5kN/m run on edge for “No Roof Load” Live Loads used on backspan: ∗ 0kPa for floors ing Sheet and Tile Roof ∗ 0.6kPa for “No Roof Load” 3. Wind Loads used in Tables 18 and 20 are determined in accordance with AS 4055: Wind loads for housing, for maximum “C3” wind category. 4. Maximum roof load width is equal to 5m for joists and 1.8m for bearers. 5. For cantilever balcony not ing a roof use “No Roof Loading” column. 6. Maximum bearer spacing for Table 19 and 20 is 3.6m. 7. If additional loads are applied the advice of a Structural Engineer must be sought.

Cantilever Spans For 5 kPa Commercial Floors Cyclonic & Non Cyclonic Regions

Flooring System

Joists Non Cyclonic

Cyclonic

TABLE 21 – MAXIMUM SPAN OF CANTILEVER JOISTS – 5 kPa MAXIMUM CANTILEVER SPAN (m) DURAGAL JOIST Joist Spacing = 450mm Joist Spacing = 600mm C450L0 NO ROOF SHEET TILE NO ROOF SHEET TILE RHS SIZE1 LOADING ROOF* ROOF* LOADING ROOF* ROOF* 75 x 50 x 1.6 x 2.0 100 x 50 x 1.6 x 2.0 150 x 50 x 2.0 x 2.5 x 3.0 x 4.0 x 5.0 x 6.0

0.48 0.52 0.59 0.69 0.92 1.06 1.12 1.21 1.28 1.33

0.19 0.21 0.31 0.31 0.61 0.60 0.66 0.74 0.81 0.87

0.11 0.13 0.20 0.20 0.43 0.42 0.46 0.53 0.59 0.64

0.42 0.47 0.52 0.61 0.81 0.95 1.02 1.10 1.16 1.21

0.17 0.18 0.28 0.27 0.57 0.53 0.56 0.64 0.70 0.75

5kPa

0.10 0.11 0.18 0.17 0.39 0.36 0.39 0.45 0.50 0.54

TABLE 22 – MAXIMUM SPAN OF CANTILEVER JOISTS – 5 kPa MAXIMUM CANTILEVER SPAN (m) DURAGAL JOIST Joist Spacing = 450mm Joist Spacing = 600mm C450L0 NO ROOF SHEET TILE NO ROOF SHEET TILE RHS SIZE1 LOADING ROOF* ROOF* LOADING ROOF* ROOF* 75 x 50 x 1.6 x 2.0 100 x 50 x 1.6 x 2.0 150 x 50 x 2.0 x 2.5 x 3.0 x 4.0 x 5.0 x 6.0

0.49 0.54 0.61 0.70 0.95 1.08 1.14 1.23 1.29 1.34

0.08 0.09 0.15 0.14 0.33 0.32 0.36 0.41 0.46 0.50

Non Cyclonic

Cyclonic

TABLE 23 – MAXIMUM SPAN OF CANTILEVER BEARERS – NON CYCLONIC - 5 kPa DURAGAL MAXIMUM CANTILEVER SPAN (m) BEARER NO ROOF SHEET TILE C450L0 ROOF* RHS SIZE1 LOADING ROOF*

TABLE 24 – MAXIMUM SPAN OF CANTILEVER BEARERS – CYCLONIC - 5 kPa DURAGAL MAXIMUM CANTILEVER SPAN (m) BEARER NO ROOF SHEET TILE C450L0 ROOF* RHS SIZE1 LOADING ROOF*

0.23 0.36 0.37 0.40 0.39 0.40 0.44 0.48 0.52 0.55

0.07 0.08 0.13 0.12 0.30 0.27 0.29 0.34 0.38 0.42

0.10 0.10 0.18 0.16 0.39 0.35 0.38 0.44 0.49 0.53

Design Criteria

Bearers

0.34 0.26 0.52 0.58 0.21 0.41 0.62 0.68 0.73 0.76

0.43 0.48 0.53 0.63 0.84 0.97 1.04 1.12 1.19 1.24

*MAXIMUM ROOF LOAD WIDTH = 5m 1 Preferred internally painted sizes shown in bold print. For availability of other internally painted sizes we recommend you consult the DuraGal Flooring System supplier in your area.

*MAXIMUM ROOF LOAD WIDTH = 5m 1 Preferred internally painted sizes shown in bold print. For availability of other internally painted sizes we recommend you consult the DuraGal Flooring System supplier in your area.

100 x 50 x 2.0 125 x 75 x 2.0 x 2.5 x 3.0 150 x 50 x 2.0 x 2.5 x 3.0 x 4.0 x 5.0 x 6.0

0.11 0.12 0.20 0.19 0.42 0.41 0.46 0.53 0.59 0.63

0.16 0.27 0.28 0.30 0.29 0.31 0.33 0.37 0.41 0.43

*MAXIMUM ROOF LOAD WIDTH = 1.8m 1 Preferred internally painted sizes shown in bold print. For availability of other internally painted sizes we recommend you consult the DuraGal Flooring System supplier in your area.

5kPa

100 x 50 x 2.0 125 x 75 x 2.0 x 2.5 x 3.0 150 x 50 x 2.0 x 2.5 x 3.0 x 4.0 x 5.0 x 6.0

0.34 0.26 0.52 0.58 0.21 0.41 0.62 0.68 0.73 0.76

0.11 0.20 0.21 0.22 0.22 0.23 0.25 0.28 0.31 0.34

0.15 0.25 0.26 0.28 0.27 0.29 0.31 0.35 0.38 0.41

*MAXIMUM ROOF LOAD WIDTH = 1.8m 1 Preferred internally painted sizes shown in bold print. For availability of other internally painted sizes we recommend you consult the DuraGal Flooring System supplier in your area.

1. Roof Dead Load, G used is 0.4kPa for Steel Roof and 0.9kPa for Tile Roof, and Roof Live Load used is 0.25kPa. 2. Live Loads, Q used on cantilever are: ∗ 5.0kPa for cantilevers ing Sheet and Tile Roof ∗ 10kPa & 1.5kN/m run on edge for “No Roof Load” Live Loads used on backspan: ∗ 0kPa for floors ing Sheet and Tile Roof ∗ 1.0kPa for “No Roof Load” 3. Wind Loads used in Tables 22 and 24 are determined in accordance with AS 4055: Wind loads for housing, for maximum “C3” wind category. 4. Maximum roof load width is equal to 5m for joists and 1.8m for bearers. 5. For cantilever balcony not ing a roof use “No Roof Loading” column. 6. Maximum bearer spacing for Table 23 and 24 is 3.6m. 7. If additional loads are applied the advice of a Structural Engineer must be sought.

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Assembly Brick Veneer Flooring System

Non Cyclonic Regions

For brick veneer construction, there are many ways of fixing the DuraGal Flooring System to the brick work. The method used depends on the wind category and building preferences. In the case of low wind only nominal fixing may be required, for example in a W33N wind category with tile roof. For higher wind situations more robust methods of fixing may be necessary. There are various proprietary systems available, including the one shown which uses a Z-bracket and threaded rod anchor to tie down the bearer.

HILTI-HSA-F GALVANIZED STUD ANCHORS OR RAMSET TRUBOLT MASONRY ANCHORS

DuraGal® Adjustable Piers can also be used around the perimeter of brick veneer houses. This makes it possible to erect the floor, frame and roof prior to the bricklayer coming to site. To avoid restricting air flow the piers should not be located adjacent to vents in the brickwork.

Examples of Load Bearing Walls ed by Bearers Example of fixing for High Wind

Ant capping not shown for clarity

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Assembly Free Standing Flooring System

Non Cyclonic Regions

Typical Floor Layout Detail

BARRIER PAINT

The DuraGal® Flooring System is an innovative solution for construction on sloping sites. NOTES: 1. Refer also to page 24. 2. Span Details for bearers and joists are given in Tables on pages 5 to 11. 3. Unless noted, all HiTek screws are to be 14-20x22mm. 4. Unities, triple grips or pergola angles are to be staggered from side to side of joist at alternate bearers. 5. ers are to be staggered where possible. 6. For connection capacities refer to page 16. 7. For bracing details refer to page 15. 8. For footing details refer to page 17.

Maximum extension of pier adjustable top connection

Max 100mm Recommend < 70mm

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The DuraGal® Flooring System is an innovative solution for construction on sloping sites.

Assembly Free Standing Flooring System

Cyclonic Regions

Typical Floor Layout Detail

Tie down details fo r: Steel Frame

Timber Frame

Tie down details fo r: Timber Frame

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Steel Frame

NOTES: 1. Refer also to page 24. 2. Span Details for bearers and joists are given in Tables on pages 5 to 11. 3. Unless noted, all HiTek screws are to be 14-20x22mm. 4. Unities or triple grips are to be staggered from side to side of joist at alternate bearers. 5. ers are to be staggered where possible. 6. For connection capacities refer to page 16. 7. For bracing details refer to page 15. 8. For footing details refer to page 17.

Bracing Capacities Flooring System Wind pressure produces horizontal loads on DuraGal Flooring System. For free standing floors these loads are transferred to the footings through the use of sub-floor bracing. Galvanized cross bracing sets are available from your DuraGal Flooring Supplier. Each bracing set is made up of brackets, washers, M12 threaded rods and four nuts. The details of these items are shown on page 20. The bracing brackets are attached with 14-20x22 Tek screws c/w sealing washers, see Detail 8 page 28.

Bracing from pier to Bearer Horizontal Force, FH

When installed, the bracing is attached to the bottom of the pier and then to either the bearer or joist, depending on the direction being braced, as shown in the diagrams on this page. Table 25 gives horizontal load capacities for a single bracing set when installed at various angles. As differing wind load conditions apply throughout Australia, engineering certification is required for both the number of bracing sets required and where they are to be installed.

35º to 60º

100mm MAX

Advice must be sought from a professional structural engineer in regard to the location and number of bracing sets to be used.

100mm MAX

Bracing from pier to Joist Horizontal Force, FH

TABLE 25 – BRACING CAPACITIES BRACING MAX. HORIZONTAL FORCE, FH (kN) ANGLE ULTIMATE PERMISSIBLE (degrees) DESIGN STRESS DESIGN 35

13.0

8.69

40

12.2

8.13

45

11.3

7.50

50

10.2

6.82

55

9.13

6.08

60

7.95

5.30

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Connections Connections Capacities

Capacities

Flooring System

TABLE 26 – FLOOR JOIST TIE DOWN CAPACITY

(kN)

PRYDA PERGOLA ANGLE minimum 1/10-16x16 tek

0*

*joist lifts off before connection engages

PRYDA UNITIE 3.86

2 in each face

PRYDA TRIPLE GRIP 6/10-16x16 tek screws

3.53

2 in each face

TABLE 27 – TIE DOWN CAPACITY* (kN) U-BRACKET 50mm - WITH M12 ROD 4/14-20x20 tek screws 2 per leg *typically to tie down rafter/trusses to floor frame

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CONSTRUCTION

AXIAL COMPRESSION

(kN) AXIAL TENSION

TOP FITTING

screw in each leg

4/10-16x16 tek screws

TABLE 28 – DURAGAL PIER & FITTING CAPACITY FOR HEIGHTS UP TO 4.5m

11.25

4/14-20x22 Tek Screws

70

25

8/14-20x22 Tek Screws

70

35

BOTTOM FITTING 4/14-20x22 Tek Screws / 2xM10 Anchors

25

8/14-20x22 Tek Screws / 2xM12 Anchors

35

NOTES: - All loads are strength limit state design capacities. - When fittings are used in exposed areas the procedures shown on pages 24-29 should be followed.

Connections Footings Capacities

Details

Flooring System

Footing parameters will differ with varying soil conditions and wind loadings. Local building approval authorities have differing requirements for the size and depth of footings. It is important that anyone deg and constructing a building seek expert advice from a structural engineer on the requirements specific to each building. The following information on footings is a general guide only and not a substitute for expert advice.

Brick veneer Guidance for engineers only Pad Footing Sizes from AS2870 for Class A, S and M sites. EFFECTIVE ED AREA, m2

WIDTH OF SQUARE PAD mm

DIAMETER OF CIRCULAR PAD, mm

THICKNESS (MIN) mm

10

400

500

200

20

500

600

200

40

600

750

250

2. The effective area ed by a pad footing is the sum of: (a) the ed floor area; (b) the ed roof area (if applicable); and (c ) half the ed wall area in elevation (if applicable). 3. Pad footings should be finished 50mm above ground level as shown by “A”. 4. Where backfilling is required (shown by “B”) the concrete for the pad needs to be raised 50mm above the finish ground line.

Free Standing

Typical Footing Detail 5. Where piers are embedded into the pads as shown by “C” it is required to apply a Top Face Trowlled To 1 in 30 Away From Post barrier coating to a minimum of 100mm above expected final concrete height. The 50mm min pier bottom connection is also to be painted all round as specified above. Suggested Coatings: Wattyl DuraGal Supaprime (Chlorinated Rubber based). Preparation and application to paint manufacturer’s specification . 100mm min (may be

DuraGal Pier 30

”C” See note 5 1

Depth to Engineers Specification

NOTES: 1. Footings to be designed to AS 2870: Residential slabs and footings. Depth of footing Df from AS 2870

Masonry Anchor

Precast) Width or Diameter to Engineers Specification

”C” See note 5

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Construction Procedure ofFlooring the System DuraGal Flooring System ®

Whether the DuraGal® Flooring System is used in brick veneer or free standing construction, assembly is straight forward and uncomplicated. The following is a typical step by step procedure. 1. For brick veneer construction, strip footings and pads are poured. Pads should be located according to the plan, finished 50mm above finished ground level and trowelled level to 1 in 300. Bricks then laid to floor level. The DuraGal pier bottom fittings are fixed to the isolated pads using masonry anchors. 2. In free standing construction approximately 100mm of mass concrete is placed at the base of pad footings, the floor built, then the pier cast in concrete. 3. It is important to determine the appropriate sealing method to prevent corrosion from the ingress of water dependent upon the particular circumstances of the application (refer to pages 24-29). 4. With the foundations in place, accurately measure all pier heights to underside of bearer. Subtract 75mm from each measurement, then cut the piers to length. 5. Attach the proprietary top and bottom pier fittings with Tek screws, and where necessary apply the recommended paint to the pier at least 100mm above finished ground level.

No site welding necessary

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6. Establish a bearer length and cut to suit or use ers to achieve longer lengths. Don’t forget to place the proprietary end caps in the bearers. 7. Place bearers on to the piers, then Tek screw the bearer to the top fitting. For free standing construction temporary bracing may be required. For bearers placed over engaged brick piers, ensure continuous ant capping is in place prior to construction of the floor. 8. Plumb DuraGal piers, check the height is correct then fix pier bottom fitting with appropriate masonry anchors. The remaining DuraGal piers can now be installed. 9. Repeat steps for all remaining bearers and check squareness/level, adjusting where necessary. 10. Measure the joist lengths against the plan, and cut and/or as previously carried out with the bearers. Then place end caps into position. To avoid later problems when nailing into the joist the joist seam weld (internal weld bead) should be placed facing down onto the bearer. 11. Fix the end joist into position, alternating the brackets at each bearer. 12. Measure and mark off balance of remaining joist positions and fix into place with the seam weld facing down. 13. For free standing construction, position and install bracing. 14. Do a final level check and adjust if necessary. 15. You are now ready to fix flooring.

Accessories Details Flooring System

ERS

RHS SIZE

ers

CODE

STRAIGHT - Galvabond 75x50x1.6/2.0

JI-755020

100x50x1.6/2.0

JI-1005020

150x50x2.0

JI-1505020

150x50x3.0

JI-1505030

As the DuraGal® Internally Painted RHS sections are supplied in factory lengths, ers will be necessary for longer lengths. A number of er sizes are available as detailed on this page. ers for use in the flooring system are able to be placed anywhere within the span of the member. However, the location of the should be alternated between adjacent joists. When installing ers, 10/14-20x22 Tek screws are used, two diagonally placed in each vertical face and one underneath on each side of the . These details can be seen on Pages 13 and 14. See also pages 24-29 if ers are being used in exposed areas.

90° ANGLE - Galvabond 75x50x1.6/2.0

JI-90-755020

100x50x1.6/2.0

JI-90-1005020

150x50x2.0

JI-90-1505020

RHS SIZE ADJUSTABLE CONNECTERS PIER ADJUSTABLE TOP CONNECTION

CODE

90x90x2.0

SATC-90-50

50 Min.

45° ANGLE - Galvabond

50 Min.

75x50x1.6

JI-45-755020

100x50x2.0

JI-45-1005020

150x50x2.0

JI-45-1505020 100 Min.

DEPTH TO

ENGINEERS PIER MULTI TOP ADJUSTABLE CONNECTION*

SPECIFICATIONS

90x90x2.0

100 Min.

100 Min. *minimum order quantities may apply

50 Min.

MISCELLANEOUS

RHS SIZE

CODE

SATC-90-MT

50 Min.

WIDTH ENGINEE

END CAP - Polypropylene 75x50x1.6/2.0

PC7550

100x50x1.6/2.0

PC10050

150x50x2.0

PC15050

100 Min.

50 Min.

VERMIN PROOF END CAPS

90x90x2.0

Min. PRYDA50UNITIE WITH Min. 2/10-16x1650HITEK SCREWS 90x90x2.0UPLIFT CAPACITY - SBC-90 6.8kN

100 Min.

JOIST

5/10-16x16 HITEK SCREWS WIDTH OR DIAMETER TO ENGINEERS SPECIFICATIONS

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PRYDA UNITIE WITHPRYDA UNITIE WITH100 Min. 2/10-16x16 HITEK SCREWS UPLIFT CAPACITY - 6.8kN AN HITEK SCREWS 2/10-16x16 SP LE

Flooring System Page

50 Min. 50 Min.

JOIST

PRYDA UNITIE WITH 2/10-16x16 HITEK SCREWS UPLIFT CAPACITY - 6.8kN PRYDA TRIPLE WITH 5/10-16x16 HITEK SCREWS

SATC-90-FP3

*minimum order quantities may apply

BEARERPRYDA TRIPLE WITH

ENGINEERS DEPTH TO SPECIFICATIONS WIDTH OR DIAMETER TO ENGINEERS ENGINEERS SPECIFICATIONS SPECIFICATIONS 100 Min.

DEPTH TO WIDTH OR DIAMETER TO 100 Min. ENGINEERS ENGINEERS SPECIFICATIONS SPECIFICATIONS

EARER

PRYDA UNITIE WITH 2/10-16x16 HITEK SCREWS UPLIFT CAPACITY - 6.8kN

PIER UNI TOP ADJUSTABLE CONNECTION* SIM

DEPTH TO

50 Min.

DEPTH TO ENGINEERS SPECIFICATIONS

E 100 Min. PL

50 Min.

PIER BOTTOM CONNECTION

50 Min.

AN SP

100 Min.

50 Min.

50 Min.

DEPTH TO WIDTH OR DIAMETER TO ENGINEERS ENGINEERS SPECIFICATIONS SPECIFICATIONS

ER INSIDE

CLORINATED RUBBER PAINT

PRYDA TRIPLE WITH DEPTH TO

19

Accessories Details

.

Flooring System

DEPTH TO ENGINEERS SPECIFICATIONS

00 Min.

MISCELLANEOUS

DESCRIPTION

CODE

VERANDAH - 2 Lug

BRACING

DESCRIPTION

CODE

TO SUIT 50mm - Galvanized 90x90

BS-90-2

BRACKET ASSEMBLY

WITH K SCREWS

BB A-50

BRACKET

BB-50

WASHER

BBw-50

M12 COARSE THREAD ROD 3m + 2/NUTS

VERANDAH - 4 Lug

M12x3M

TO SUIT 90mm - Galvanized

N PA

SS

90x90

OU

INU

NT

BS-90-4

CO

BRACING ASSEMBLY

BBA-90

BRACKET

BB-90

WASHER

BBw-90

M12 COARSE THREAD ROD 3m + 2/NUTS

M12x3M

BRACKETS - Galvabond PRYDA TRIPLE GRIP - LEFT

TG-L

PRYDA TRIPLE GRIP - RIGHT

TG-R

PRYDA UNITIE - LEFT

UNI-L

PRYDA UNITIE - RIGHT

UNI-R

PRYDA PERGOLA ANGLE

PAB

ASSEMBLY OF THE DURAGAL ADJUSTABLE PIER

PIER ADJUSTABLE TOP CONNECTION (SATC-90-50)

• Made to suit 90x90x2.0 DuraGal RHS Pier Size

• 100mm of Adjustment • 150x50 DuraGal RHS Bearer Size • 100x50 DuraGal RHS Bearer Size

FASTENERS PIER COMPONENTS - HITEKS 14-20x22*

142022

PRYDA BRACKETS - HITEKS 10-16x16*

101616

HARD STEEL TWIST FLOORING NAILS PIER BASE - Galv. Masonry Anchors M10x90

M1095

PIER BASE - Galv. Masonry Anchors M12x100

M12100 50 Min.

* HiTeks c/w sealing washers should be used in exposed areas.

50 Min.

90x90x2.0 DURAGAL RHS • Internally Painted.

SEALING JOIST SEALING TAPE - (50mm W x 15m Roll)

FDP-B805015 DEPTH TO ENGINEERS FDP-PB90 SPECIFICATIONS

MOULDED PVC PLASTISOL BOOT

PIER BOTTOM CONNECTION 100 Min.

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WIDTH OR DIAMETER TO ENGINEERS SPECIFICATIONS

20

(SBC-90) • Made to suit 90x90x2.0 DuraGal RHS Pier Size

DuraGal

®

Flooring System

Flooring System

Requires No Further Termite Barriers

No Further Termite Barriers. Australian Standard AS 3660.1: Protection of buildings from subterranean termites, requires that “Termite shields shall be installed on all substructures (piers and walls) below the underside of the lowest floor framing member to provide a continuous barrier for the protection of the building” (Clause 4.2.1). “Termites can build around barriers but they can then be detected more readily during routine inspection” (Note 1, Clause 1.1). With masonry piers, this barrier is in the form of a galvanized sheet steel ant cap which, when placed on top of the masonry pier, forces the subterranean termites to build their tunnels around the steel and therefore can be seen in a visual inspection.

area to a traditional ant cap on a masonry pier and would be deemed to comply. When using full continuous ant cap on brick dwarf walls, it is recommended that the same size bearer should be used throughout the DuraGal Flooring System to eliminate the need to step the ant capping. AS 3660.1 stresses that termites can bridge physical barrier systems and that regular and thorough inspections are necessary.

EXPOSED SOLID STEEL ROD

For tubular piers e.g. DuraGal piers, Clause 4.2.2 of AS 3660.1 states that termite caps may be omitted where welded metal tubular piers are used, provided that these piers are free from perforations, sealed at the top and remain fully exposed for inspection. With the DuraGal Flooring System, termites would have to build a tunnel around the exposed solid steel threaded rod of the DuraGal pier adjustable top connection shown in the figure. This then offers a similar visual inspection

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Corrosion Flooring Flooring System System

Precautions

The Site Environment. The metallurgical bond between the steel and the Zinc coating of DuraGal generally imparts good corrosion resistance. However, there are some environments where the rate of corrosion is so high that any steel structure is at risk of rapid corrosion. The rate of corrosion is dependent upon environmental factors such as the amount of corrosive elements present and surface humidity. Sulphur compounds from heavy industrial sites and chloride from marine environments are two commonly known corrosive elements. Acid and alkaline conditions will also accelerate the depletion of the zinc coating leading to corrosion of the underlying steel. While suitable for building applications in many environments found throughout Australia, the DuraGal Flooring System will not be suitable for all environments. We do not recommend its use in applications where there is a very high rate of corrosion, such as from marine or heavy industrial environments2. Table 29 details the situations where we do not recommend using the DuraGal Flooring System: TABLE 29 – DO NOT USE THE DURAGAL FLOORING SYSTEM WITHIN THE FOLLOWING DISTANCES FROM THE SOURCE OF CORROSION1 Minimum Distance for

SOURCE OF CORROSION

Enclosed Floors (km)

Surf beach Sheltered bay Rocky Coastline /Headlands Heavy Industrial Area2

2 0.5 3 3

Minimum Distance for Open Floors/Decks (km)

4 1.5 4 4

1 The distances recommended in this table are minimum distances and what is the appropriate distance from a source of corrosion will depend upon many factors such as prevailing winds, whether shielding exists (ie by trees & adjacent buildings), the topography of the surrounding area, and exposure to rain. In any building application, the specific micro climatic conditions must always be considered and taken into . DuraGal is not recommended for decks or verandahs adjacent to the splash zone of swimming pools. 2 "Heavy Industrial Areas" are locations where the environment may be acidic with a pH value less than 5, as per Section 2.3 of the Australian & New Zealand Standard AS/NZS 2312

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Precautions to Reduce the Risk of Corrosion Care must be taken to preserve the zinc coating on DuraGal Flooring System components and minimise the risk of corrosion to the underlying steel. It is recommended the following precautions be taken to reduce the risk of corrosion . Storage of Floor Components Most galvanized products including DuraGal sections are susceptible to "White Rust" or "Zinc Storage Stain". The following storage precautions should be observed to minimise the risk of this occurring: ●

DuraGal sections and components should be stored on site in a dry and well-ventilated position wherever possible. If packs of DuraGal sections are to be left exposed to the weather for more than a few days, the individual sections should be separated by non-staining timbers such as dressed Radiata Pine (not Treated Pine) and arranged so that all surfaces are well ventilated and any water will readily run off and not pool either on the surface, or inside the section. If these precautions are not followed, then White Rust may form very quickly. If this occurs, you should consult the DuraGal Easy Painting and Corrosion Guide for suitable remedial treatments, or consult your paint supplier for guidance. Your DuraGal Flooring System supplier cannot be held responsible for deterioration as a result of poor storage practices on site.

Partially Erected Floors It is recommended that the ends and open tops of sections exposed to the weather be covered to prevent the filling of piers and the ponding of water in the joists and bearers from rain. ●

Fasteners Do not use any other fasteners other than those recommended in this guide. The use of the wrong type of fastener may lead to corrosion to occur at the area between the fastener and the DuraGal sections. ●

Swarf Swarf (steel filings) from saws are often initiation points for corrosion. It is recommended that saws be regularly cleaned and that any swarf be brushed from the DuraGal Flooring System components. ●

Corrosion Flooring System

Precautions

Ponding of Water The ponding of water within DuraGal Flooring System sections must be avoided. Ponding of water may occur where the ends of sections have been incorrectly sealed, through top adjustable pier connections or by water ingress through fastener holes. Decks and areas of open floor directly exposed to outdoor weather conditions are most susceptible to ponding. OneSteel have developed a number of techniques to reduce these risks. Pages 24 to 29 address these risks in greater detail.

●

which occurs from brick washing. between these sorts of chemicals and the DuraGal Flooring System components must be avoided. If accidental occurs, immediately hose down the contaminated area with water. If the galvanizing is affected, repair of the coating will be required to restore the level of protection. your DuraGal Flooring System supplier for advice.

Soil between DuraGal flooring components and soil should be avoided by proper design of the footings because soil markedly increases the corrosion rate of zinc. This is particularly true of clay soils. Please refer to page 17 for Footing Details.

●

Concrete An appropriate paint system should be applied at least 100mm above and below the concrete junction where floor components are embedded in concrete. Please refer to page 17 for Footing Details.

●

Timber (Exposed deck & verandahs) Do not use treated pine in direct with the DuraGal sections as this will increase the corrosion rate of Zinc. with some hardwood species will stain galvanized section. Although this staining is unsightly, it will not generally be detrimental to the performance of the product. The tape systems recommended in this brochure should be used as a barrier between all timber and DuraGal. Please refer to Detail 4 on page 26.

●

Avoid Between Dissimilar Metals between dissimilar metal may increase the corrosion rate of one of them. In particular, the use of copper pipes on galvanized surfaces will be detrimental to the galvanising. Water run off from one metal to another may also lead to corrosion of the galvanized metal. ●

Painting Floors Use the paint systems recommended in the "DuraGal Easy Painting and Corrosion Protection Guide" and the "DuraGal and Galtube Plus Powder Coating Guide" as a general guide for how to paint floor components. For assistance, paint suppliers, or the paint manufacturers listed the "DuraGal Easy Painting and Corrosion Protection Guide" for advice on specific paint systems to suit the climatic conditions of your site and application. Do not use solvent borne decking oils or paints because these solvents may be detrimental to the barrier tapes recommended in this brochure.

●

Chemicals Zinc corrosion is increased by acidic or alkaline conditions, and may occur where certain chemicals are present. A common example is the acid run off

●

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Sealing of Fittings Flooring System

Open and Enclosed Subfloors

Sealing of Fittings

FIGURE 1. ENCLOSED SUBFLOOR

To ensure the maximum life of a DuraGal floor it is recommended that fittings be sealed. Drawings on pages 24 to 29 give recommendations for three basic floor types. 1. Enclosed Sub Floors, Figure 1 Where The Sub floor is protected from the external environment. Eg Brick veneer construction 2. Open Sub Floors, Figure 2 Where the Sub floor is exposed to the external environment on the outer perimeters of the sub floor. Eg Free standing construction 3. External Decks, Figure 3 External decks cover a large range of construction types. Figure 3 deals with decks attached to a building with or without a covering roof. The sub floor is assumed to be open and the decking material is either hard wood or treated timber slats.

Exposed floor during construction. Refer to notes on partially erected floor on page 23.

Pad footing Refer to page 17

FIGURE 2. OPEN SUBFLOOR Exposed Pryda fittings Refer Detail 7

Exposed floor during construction. Refer to notes on partially erected floor on page 23.

Exposed top fitting Refer Detail 1

Exposed er. Refer Detail 3

Bracing bracket connection Refer Detail 8

Exposed joist & bearer ends. Refer Detail 6 Free standing footing Refer page 17

DETAIL 1.

Pad footing Refer to page 17

TOP FITTING SEALING

Seal all-round with a bead of a neutral, flexible, paintable sealant. 4/14-20x22 Tek screws c/w sealing washers

Internally painted DuraGal RHS bearer

U stirrup Seal all-round with a bead of a neutral, flexible, paintable sealant. Adjustable top fitting Moulded PVC plastisol boot

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4/14-20x22 Tek screws c/w sealing washers

Internally painted DuraGal RHS post

Sealing of Fittings Flooring System

Exposed Decks and Verandahs

Timber decking Refer Detail 4 (not shown for clarity)

FIGURE 3. EXTERNAL DECK

Post to verandah beam Refer Detail 9

Exposed floor during construction. Refer to notes on partially erected floor on page 23.

Post to down pipe Refer Detail 11

Post to hand Rail Refer Detail 10 Brick penetration Refer Detail 12 DuraGal Angle Refer Detail 2 & 13

Verandah sleeve Refer Detail 5 Exposed joist & bearer ends. Refer Detail 6

Exposed Pryda fittings Refer Detail 7

Hip bearer Refer Detail 2

DETAIL 3.

Exposed er. Refer Detail 3

Footing details Refer to Page 17

INTERNAL ER SEALING

Internally painted DuraGal RHS bearer or joist

DETAIL 2.

ANGLE TO BEARER SEALING

Internal er

(Applies to Verandah Hip & Surround Bearers) Internally painted DuraGal RHS Joist Internally painted DuraGal RHS bearer

10/14-20x22 Tek screws c/w sealing washers

Joist & bearer ends. Refer Detail 6 Plastic end cap

Seal all-round with a bead of a neutral, flexible, paintable sealant.

DuraGal Angle

Joist sealing tape between overlapping surfaces.

Joist sealing tape approx 50mm long between overlapping surfaces. 14-20x22 Tek screws c/w sealing washers

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Sealing of Fittings Flooring System

DETAIL 4.

Exposed Decks and Verandahs

TIMBER DECKING TO JOIST SEALING

Joist sealing tape also acts as a barrier between the DuraGal joist and the treated timber .

Joist sealing tape

Norton Flashtac 72mm wide tape or equivalent.

Internally painted DuraGal RHS joist

Fix decking timber with either dacrotised or stainless steel hard steel twist nails

Plastic end cap 20m

Joist sealing tape 50mm wide by 15m roll

m

Norton Flashtac 72mm wide tape or equivalent. 20mm of tape folded over top of cap, the excess tape is folded over sides and tape finished flush with the bottom of cap. ie. not sealed at the bottom

Internally painted DuraGal RHS joist

PART ISOMETRIC VIEW OF JOIST AND JOIST SEALING TAPE

Caution: Do not use solvent bourne decking oils or paints because these solvents may be detrimental to the barrier tapes.

ISOMETRIC VIEW OF JOIST AND JOIST SEALING TAPE

DETAIL 5.

VERANDAH SLEEVE TO DURAGAL SEALING

Seal all-round with a bead of a neutral, flexible, paintable sealant.

14-20x22 Tek screws c/w sealing washers

Internally painted DuraGal RHS bearer

Verandah sleeve

Internally painted DuraGal RHS Post

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Seal all-round with a bead of a neutral, flexible, paintable sealant.

Sealing of Fittings Flooring System

DETAIL 6.

Exposed Decks and Verandahs

END CAP SEALING

Norton Flashtac 72mm wide tape or equivalent.

Internally painted DuraGal RHS joist

20m

m

Plastic end cap Norton Flashtac 72mm wide tape or equivalent. 20mm of tape folded over top of cap, the excess tape is folded over sides and tape finished flush with the bottom of cap. ie. not sealed at the bottom

Internally painted DuraGal RHS joist

PART ISOMETRIC VIEW OF JOIST WITH END CAP SEALING

ISOMETRIC VIEW OF JOIST WITH END CAP SEALING

DETAIL 7.

PRYDA FITTINGS TO DURAGAL SEALING

Joist sealing tape between overlapping surfaces. Joist sealing tape between overlapping surfaces.

4/10-16x16 Tek screws c/w sealing washers PRYDA UNITIE

2/10-16x16 Tek screws c/w sealing washers PRYDA PERGOLA ANGLE BRACKET

Joist sealing tape between overlapping surfaces that have Tek screw penetration

6/10-16x16 Tek screws c/w sealing washers PRYDA TRIPLE GRIP

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Sealing of Fittings Flooring System

DETAIL 8.

Exposed Decks and Verandahs

BRACING BRACKET CONNECTION SEALING

Internally painted DuraGal RHS Post

Seal all-round with a bead of a neutral, flexible, paintable sealant.

DETAIL 9.

DURAGAL POST TO VERANDAH BEAM SEALING

Bracing bracket The top of the post to be sealed against the ceiling lining. 14-20x22 Tek screws c/w sealing washers

‘O’ ring - nom 12mm ID x 3mm section dia or nom 1/2” ID x 1/8” section dia. (both sides)

Seal all-round with a bead of a neutral, flexible, paintable sealant.

M12 nut Flat washer Internally painted DuraGal RHS Post

DETAIL 10.

DURAGAL POST TO HAND RAIL SEALING

Internally painted DuraGal RHS Post

14-20x22 Tek screws c/w sealing washers

Joist sealing tape between overlapping surfaces.

Hand rail to be installed as per manufacturers recommendations

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2/M12 galv’d hex hd commercial bolt c/w nut & 2 washers Internally painted DuraGal RHS Verandah Beam

Sealing of Fittings Flooring System

DETAIL 11.

Exposed Decks and Verandahs

DURAGAL POST TO DOWNPIPE SEALING

Refer to Detail 1 or Detail 9 Internally painted DuraGal RHS Post

Downpipe

DETAIL 12.

Joist sealing tape between overlapping surfaces that have Tek screw penetration

BRICK PENETRATION SEALING

Downpipe bracket Wrap joist sealing tape around the bearer where in with brickwork or use Norton Flashtac or equiv. DuraGal surface should be clean of oil, grease and any residue.

Brick wall

Internally painted DuraGal RHS bearer

DETAIL 13.

DURAGAL ANGLE TO BRICKWORK SEALING

Continuous ant capping

14-20x22 Tek screws c/w sealing washers Joist & bearer ends. Refer Detail 6 Brick wall DuraGal Angle

Internally painted DuraGal RHS Joist

Plastic end cap Joist seal tape between overlapping surfaces. Load spreading washer M12 nut

M12 galv’d hex head commercial bolt c/w nut & 2 washers Flat washer ‘O’ ring - nom 12mm ID x 3mm section dia or nom 1/2” ID x 1/8” section dia.

Joist sealing tape between overlapping surfaces.

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DuraGal

®

Nailing & Cutting Flooring System

Nailing of Sheet Flooring to DuraGal® Joists

Nailing of Timber Decking to DuraGal® Joists

Sheet flooring can be successfully glued and nailed to both 1.6 and 2.0mm DuraGal joists. Most nailing tools including Duo-Fast® and Max®, or equivalent, have been successfully trialed using the manufacturers recommended hard steel end twist nail.

External timber decking can be nailed to both 1.6 and 2.0mm DuraGal Joists. When using hardwood or treated timber decking, the best results to date have been obtained from the Duo-fast® Coil nailing tool and also a Max® Coil nailing tool with 38mm long 304 stainless steel hardened twist nails. Details for external fixing are:

Most reputable building adhesives work on steel joists and should be applied as per manufacturers recommendations to dry joists. To date, the best results have been obtained by using the Duo-Fast coil nailing tool with a 32mm hard steel end twist nail.

TOOL: NAIL:

steel hardened twist nail. TOOL: NAIL:

Details are:TOOL:

Duo-Fast® Model KD 655 BII, 665a or 750b

NAIL:

Duo-Fast® C25 / 32 SH Dac Con Hard Steel Twist Nail.

Max® Tool Model CN-650M-FAP50V9 Max® Nail 2.5 x 38mm long 304 stainless

Duo-fast® Model KD 650bII, 665a or 750b Duo-fast® C25 /32 SH Dac Con Hard Steel Twist Nail.

Notes: 1. To reduce the risk of corrosion, joist sealing tape should be used on the top of the joists for all external timber decks or verandahs as shown in Detail 4 page 26. 2. The use of screws to attach timber decking to joists on external decks and verandahs is not recommended.

Notes: Sheet flooring can also be glued and screwed using Buildex® WingTek screws (or equivalent) and is the recommended method for joists with wall thickness greater than 2.0mm.

Nailing Guidelines • The joist weld seam, (internal weld bead), should be placed down onto the bearer, during installation. • Do not attempt to nail through ers, nail either side of them. • The air pressure should be a constant 710 minimum to 800kPa maximum, (105 to 120 PSI). • Nailing tool must be perpendicular to sheet and firmly held. • Ensure nailing tool is on sequential action. • Bump fire action must never be used.

Cutting DuraGal® The cutting of steel on site has been made easier with the introduction of a new portable cold cut docking saw that has been introduced by Makita® (4130). The saw is lighter, and the cold cut produces a burr-free cut (therefore safer), without zinc burn. For further information on the Makita® 4130 saw your local Makita® dealer. Other recommended methods include drop saws, circular hand saws and angle grinders fitted with the appropriate steel cutting disc.

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Flooring System

FOR MORE INFORMATION

OneSteel Direct 39-45 Flagstaff Road Port Kembla NSW 2505 Locked Bag 8825 South Coast Mail Centre NSW 2521 Telephone: 1800 1 STEEL (1800 1 78335) Facsimile: 1800 101 141 Email: [email protected] Website: www.onesteel.com

This publication has been prepared by OneSteel Market Mills an operating business group of which OneSteel Trading Pty Limited ABN 50 007 519 646 is a part of. Please note that the specifications and technical data referred to in this publication are subject to change and/or variation or improvement without notice and no warranty as to their suitability is made. s of this publication - to ensure accuracy and adequacy for their purposes - are requested to check the information in this publication to satisfy themselves as to its appropriateness and not to rely on the information without first doing so. Unless required by law, the company cannot accept any responsibility for any loss, damage or consequence resulting from the use of this publication. Photographs shown are representative only of typical applications, current at August 2002. This brochure is not an offer to trade and shall not form any part of the trading in any transaction. Copyright 2002 OneSteel Trading Pty Limited ABN 50 007 519 646. Issue 5 August 2002. OneSteel Trading Pty Limited ABN 50 007 519 646. ed Trademark; DuraGal

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