ITI Australia - Metsa Kerto LVL E9.2 - Wall Specification Guide

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WALL FRAMINGN2

WALL SPECIFICATION GUIDE

METSA KERTO T-stud & S-Beam+

ISSUE 2.0 - OCTOBER 2022

ABOUT ITI

Growth through premier brands and innovation

Since establishment in 1987 in Five Dock, NSW, Independent Timber Importers has been on a mission to redefine the timber industry wholesale/distribution landscape. ITI has worked closely with industry suppliers, customers and associations to promote the strength, beauty and environmental benefits of using timber. At the same time ITI redefined the role of the wholesaler with its distribution and service models. With its large investments in distribution centres, product development, people and service standards; in early 2002 ITI dropped the name Independent Timber Importers and replaced this with ITI and introducing the new logo with the “Innovative Timber Ideas”phrase which more accurately describes the attitude of the company.

Today ITI consists of 9 distribution sites across Australia with over 130,000m2 of undercover storage, a state of the art re-manufacturing, treating and priming plant in Chile, an office in Indonesia, 3 distribution locations in New Zealand and growing sales in the USA.

True to its name, the success of ITI lies in its commitment to innovation in both service and product development. This commitment has led to premier brands such as Design Pine, EziTrim Plus and Spec Beam along with the distribution of market leading products such as Pacific Woodtech, Metsa Wood, Weathertex and Modwood. ITI has also led the way with service standards winning countless industry awards for its service.

ITI Engineered Wood Products

ITI source Engineered Wood Products from leading manufacturers to ensure the needs of building designers through to the end users are met with the best available product.

ITI Engineered Wood Products offering is comprised of 3 major products with each intended on complimenting the next. Laminated Veneer Lumber (LVL), I-Joists and Glue Laminated Timber Beams (GL). These products along with innovated construction details and dedicated support staff form an innovative platform which set ITI Engineered Wood Products apart from the rest.

Single Member Design Software

Available from ITI Australia is ITI Design Spec. A single member design software developed to assist industry professional with the specification of ITI’s vast range of structural timber products. Free licences are available to suit builders, timber merchants, frame & truss professionals and engineers. Head to www.itiaustralia.com.au to download for free.

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Metsä Kerto® LVL T-stud, proudly distributed by ITI (Australia), is a lightweight laminated veneer lumber product specifically developed for use in wall framing. Kerto® LVL T-stud is easy to handle, has fit for purpose strength and will provide trades people with a building material they will love using. Deliver your clients an expert quality finish using Kerto® LVL T-stud as the unseen structural hero.

Metsä Kerto® LVL T-stud framing is a direct substitute for MGP10 Kiln Dried Pine in Wall Framing (Studs & Plates) up to 3050mm high for Wind Load Zones of N3 and below. Additional specification may be provided via the Metsä Kerto® LVL T-stud Wall Framing Specifcation Guide or the ITI Design Spec software available for free download from www.itiaustralia.com.au

Kerto LVL is produced from 3 mm thick, rotary-peeled softwood veneers that are glued together to form a continuous billet. The billet is cut to length and sawn into a wide range of LVL beams. Raw wood material comes from the sustainably managed and PEFC-certified forests of Metsä Group’s Finnish forest owner members, ensuring that the origin of the raw material is traceable.

It is a requirement of the Australian standard for manufacturing Laminated Veneer Lumber that an external ‘A Bond’ be achieved between the veneers by using a phenolic type adhesive.

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Sizes 90x35 Weight 1.4 kg/m Lengths 2.7, 3.0, 3.3, 3.6, 4.8, 5.4 & 6.0 90x45 1.8 kg/m Properties (MPa) E G F’b F’ c F’ t F’ s F’ p Weight kg/m3 Joint Group Edge 9200 500 27.0 26.0 22.0 3.6 4.0 Face 32.0 2.0 0.8 440 JD5
Formaldehyde Emissions Emissions Class E0 Maximum Emission <0.5 mg/L

TYPICAL WALL FRAMING MEMBERS

4 TYPICAL WALL FRAMING MEMBERS
Item 1 Top Plate 2 Stud 3 Noggin 4 Bottom Plate 5 Lintel 6 Header 7 Jamb Studs 8 Sill 9 Jack Studs 10 Concentrated Load Stud 1 2 3 4 1 2 3 4 5 6 7 8 9 10 7 5

LOADINGS

5 WALL LOADING & SPAN DEFINITIONS Determining Roof Load Width (RLW) at Supports - Trussed Roof RLW at Support 1 = Span 1 + Overhang 2 RLW at Support 2 = Span 1 2 Overhang Span 1 Support 1 Support 2 Cantilever Determining Floor Load Width (FLW) at Supports FLW at Support 1 = Span 1 2 FLW at Support 2 = Span 1 + Span 2 2 FLW at Support 3 = Span 2 + Cantilever 2 Support 2 Support 3 Span 1 Span 2 Support 1
&
Lintel Span Span = Distance between centre of supports Lintel Supporting Jamb Studs
DEFINITIONS

Additional Blocking required under joint

JOINTS IN MEMBERS

Roof Beam or Girder Truss

Joint in plate off stud supporting Rafter or Truss

Rafters or Trusses

600mm Max. Spacing between nails

600mm Max. Spacing between nails

Where multiple ply studs are required they are to be laminated using framing nails, or minimum 10 gauge screws, at 600mm centres maximum. Drive fixings alternately from either side of studs where possible.

Where multiple plates are required 2x nails are required to be installed at no greater than 600mm centres. All joists in bottom plates are to be over floor joists, solid block or over a concrete slab. Where multiple Top Plates are used, joints are permissable off stud however if a rafter or truss are supported over the plates span additional blocking is required under the joint.

TOP PLATE CRUSHING

T-stud is a light weight timber product which provides the end user with numerous benefits. As a result of this light nature additional attention should be given when assessing point loads which have been applied to the top plates.

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MEMBERS
Timber Combination Nail Size Min. Screw Length 2/90x35 75x3.0mm 62mm 2/90x45 90x3.15mm 79mm
Kerto
Bearing Capacities of 90mm Top Plate (kN) (3) Without Bearing Plate (1) With 140x75x6mm Bearing Plate (2) Beam or Truss Width 1.35 G 1.2G + 1.5Qr 1.2G + 1.5Qf Conc. Load Stud Size 1.35 G 1.2G + 1.5Qr 1.2G + 1.5Qf 35mm 8.3 14.2 13.7 2/90x35 16.7 28.4 27.5 45mm 10.7 18.2 17.7 2/90x45 21.4 36.5 35.4 70mm 16.7 28.4 27.5 3/90x35 25.0 42.7 41.3 90mm 21.4 36.5 35.4 3/90x45 32.2 54.8 53.1 (1) Capacities for ‘Without Bearing Plate’ governed by the bearing area supported beam onto the Top Plate (2) Capacities for ‘With 140x75x6mm Bearing Plate’ governed by the bearing area of the support studs under the Top Plate (3) Values shown for a categry 1 member per AS1720.1. Where member support greater than 25m2 multiple the above values by 0.94
Metsa

HOLES & NOTCHES IN WALL FRAMING

Studs Depth Studs Breadth

3x Stud Depth spacing between any holes and notches

Max. 18mm

Max. 10mm

Max. 25mm diameter holes to face of Stud only

Max. 25mm diameter holes to face of Plate only

HOLES IN LINTELS

50mm max.

Greater than Hole Dia. 50mm min.

7 HOLES & NOTCHES
B 6 x B min. B/4 max. D D/8 max. D min. D/8 max. No min.
D/3
D/4 max. D/3 min.
min.
D, >200mm D, <200mm

COMMON STUDS

Common studs are evenly spaced at a distance suitable of supporting the loads along with providing adequate fixing for external wall claddings and internal plasterboard. Common Studs are fixed to horizontal timber plates at either end and require additional restraint noggins which is provided by noggins.

Single or Upper Level Framing

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COMMON STUDS
Maximum Roof Load Width (mm) Wall Studs - Single or Upper Storey - Maximum Roof Load Width Stud Centres 450mm Roofing Type Sheet Metal (40 kg/m2) Concrete (80 kg/m2) Truss Centres 600 900 1200 600 Size Height MGP10 Kerto-T MGP10 Kerto-T MGP10 Kerto-T MGP10 Kerto-T 90x35 2700 7500 7500 7500 7500 7500 7500 7500 7500 3000 7500 7500 7500 7500 6600 7500 7500 7500 90x45 3000 7500 7500 7500 7500 7500 7500 7500 7500 3600 7500 7500 5600 7100 4300 5500 5400 6800 Stud Centres 600mm Roofing Type Sheet Metal (40 kg/m2) Concrete (80 kg/m2) Truss Centres 600 900 1200 600 Size Height MGP10 Kerto-T MGP10 Kerto-T MGP10 Kerto-T MGP10 Kerto-T 90x35 2700 7500 7500 7500 7500 7500 7500 7500 7500 3000 7500 7500 7000 7500 5400 7000 6800 7500 90x45 3000 7500 7500 7500 7500 7500 7500 7500 7500 3600 5400 7500 3900 5900 3000 4600 3100 5700 Stud Height Noggins at 1350mm max. Roof Trusses or Rafters Common Stud
Refer to page 20 for specification notes

Lower Level Framing (2 Storey Dwelling)

9 Maximum Roof Load Width (mm) Wall Studs - Lower Storey - Maximum Roof Load Width Stud Centres 450mm Joist Centres 450 600 Floor Load Width 3600 4800 3600 4800 Size Height MGP10 Kerto-T MGP10 Kerto-T MGP10 Kerto-T MGP10 Kerto-T Roofing Type Sheet Metal (40 kg/m2) 90x35 3000 7500 7500 7500 7500 7500 7500 7500 7500 90x45 3000 7500 7500 7500 7500 7500 7500 7500 7500 Roofing Type Concrete Tile (80 kg/m2) 90x35 2700 7500 7500 7500 7500 7500 7500 7500 7500 3000 5600 6100 4500 5000 5600 6100 4500 5000 90x45 3000 7500 7500 6900 7500 7500 7500 6900 7500 Stud Centres 600mm Joist Centres 450 600 Floor Load Width 3600 4800 3600 4800 Size Height MGP10 Kerto-T MGP10 Kerto-T MGP10 Kerto-T MGP10 Kerto-T Roofing Type Sheet Metal (40 kg/m2) 90x35 2700 7500 7500 7500 7500 7500 7500 7500 7500 3000 6800 7500 5100 7500 6800 7500 5100 7500 90x45 3000 7500 7500 7500 7500 7500 7500 7500 7500 Roofing Type Concrete Tile (80 kg/m2) 90x35 2700 7500 7500 7500 7500 7500 7500 7500 7500 3000 4000 5900 2900 4700 4000 5900 2900 4700 90x45 2700 7500 7500 7500 7500 7500 7500 7500 7500 3000 7500 7500 6700 7300 7500 7500 6700 7300 Stud Height Noggins at 1350mm max.
Level Framing Supported Floor Framing Common Stud
Upper

Supported Floor Framing

Supporting Wall

Common Stud

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Max. Roof Load Width (mm) Wall Studs - Lower Storey - Floor Loads Only - Maximum Floor Joist Width Stud Centres 450 600 Floor Joist Centres 450 600 450 600 Size Height MGP10 Kerto-T MGP10 Kerto-T MGP10 Kerto-T MGP10 Kerto-T 90x35 2700 7500 7500 7500 7500 7500 7500 7500 7500 3000 7500 7500 7500 7500 7500 7500 7500 7500 90x45 3000 7500 7500 7500 7500 7500 7500 7500 7500 3600 7500 7500 6800 7200 4600 7200 4300 6400 Stud Height Noggins at 1350mm max.
Lower Level Framing (2 Storey Dwelling) - Floor Loads Only
Refer to page 20 for specification notes

CONCENTRATED LOAD STUDS

Concentrated Load Studs are used in addition to Common Studs to directly support imposed loads from Girder Trusses, Roof Beams and Floor Beams.

Roof Loads Only

11 CONCENTRATED LOAD STUDS Max. Concentrated Load (m 2 ) Concentrated Load Studs - Roof Loads Only - Maximum m2 Load Roofing Type Sheet Metal (40 kg/m2) Concrete (80 kg/m2) Size Height MGP10 Kerto-T Kerto-S+ MGP10 Kerto-T Kerto-S+ 90x35 2400 18 19 30 8 9 15 2700 14 15 24 7 7 11 2/90x35 2400 36 38 40 17 18 30 2700 28 30 40 14 14 23 3000 23 24 39 11 12 18 3600 16 17 27 7 8 13 90x45 2400 23 24 38 11 12 18 2700 18 19 30 9 9 14 3000 14 15 24 7 7 11 2/90x45 2400 40 40 40 22 24 37 2700 36 39 40 18 19 29 3000 29 31 40 14 15 23 3600 20 21 34 10 10 16 3/90x45 2700 40 40 40 27 28 40 3000 40 40 40 21 23 35 3600 31 32 40 15 16 24
Height Noggins at 1350mm max.
Load
Stud
Girder Truss or Roof Beam Concentrated
Studs Concentrated Load Studs
12 Max. Concentrated Load (m 2 ) Concentrated Load Studs - Floor Loads Only Stud Height 2700 3000 Size MGP10 Kerto-T Kerto-S+ MGP10 Kerto-T Kerto-S+ 90x35 7 8 13 5 5 8 2/90x35 15 16 26 10 10 17 3/90x35 23 24 39 15 15 25 90x45 10 10 16 6 6 10 2/90x45 20 21 33 12 13 21 3/90x45 30 32 40 19 20 31
Stud Height Noggins at 1350mm max. Supported Floor Framing Floor Beam Concentrated Load Studs Refer to page 20 for specification notes
Floor Loads Only

JAMB STUDS

Jamb Studs are clusters of studs used to support lintels over windows and doors. Each cluster contains full height Jamb studs and Secondary Jamb Studs, also known as Prop Studs, which are used to support the lintel.

Where Lintels support additional imposed loads from Girder Trusses, Roof Beams or Floor Beams the cluster shall be increased, as a minimum, by the size of the Concentrated Studs required to support the imposed load (Refer to Concentrated Load Studs in the guide).

Where the imposed load is located in the central third of the Lintels span, the breadth of the Jamb Stud cluster on boths side shall increase by a minimum of half the required Concentrated Load Stud breadth.

Where the imposed load is located in the outer third of the lintel span or directly over the jamb studs, the breadth of the cluster shall increase required Concentrated Load Stud breadth.

In addition the breadth of the Secondary Jamb / Prop Studs shall meet the minimum required size to provide adequate bearing support for the supported lintel.

13 JAMB STUDS
Stud Height Noggins at 1350mm max. Roof Trusses or Rafters Frame
Opening
Lintel
Single or Upper Level Framing
Jamb Stud
Central Third Outer Third Outer Third
Secondary Jamb / Prop Stud
14 Stud Height Noggins at 1350mm max. Frame Opening Lintel Upper Level Framing Supported Floor Framing Lower Level Framing (2 Storey Dwelling) Maximum Stud Height (mm) Jamb Studs - Single or Upper Storey Roofing Type Sheet Metal (40 kg/m2) Roof Load Width 3000 4500 6000 7500 Size Height MGP10 Kerto-T MGP10 Kerto-T MGP10 Kerto-T MGP10 Kerto-T 2/90x35 2400 3900 5400 3300 5100 3300 4500 3000 3900 2700 2700 4200 2700 3900 2400 3600 2400 3000 2/90x45 2700 3600 5400 3600 5100 3300 4500 3000 3900 3000 3000 4200 2700 3900 2400 3300 2400 3000 3/90x45 3000 1800 6000 4800 6000 4200 5700 3900 4800 Roofing Type Concrete (80 kg/m2) Roof Load Width 3000 4500 6000 7500 Size Height MGP10 Kerto-T MGP10 Kerto-T MGP10 Kerto-T MGP10 Kerto-T 2/90x35 2400 3300 4800 3000 4200 2700 3600 2400 3000 2700 2400 3600 2100 3000 1800 2700 1800 2100 2/90x45 2400 4500 6000 3900 5400 3600 4500 3000 3900 2700 3000 4800 3000 4200 2700 3600 2400 3000 3000 2700 3900 2400 3300 2100 2700 1800 2400 3/90x45 2700 5700 6000 5100 6000 4500 5700 3900 4800 3000 4500 6000 3900 5100 3600 4500 3000 3600 Refer to page 20 for specification notes
15 Maximum Stud Height (mm) Jamb Studs - Lower Storey - Floor Load Width <1.8m Roofing Type Sheet Metal (40 kg/m2) Roof Load Width 3000 4500 6000 7500 Size Height MGP10 Kerto-T MGP10 Kerto-T MGP10 Kerto-T MGP10 Kerto-T 2/90x35 2400 3300 4500 3000 4200 2700 3900 2700 3300 2700 2400 3600 2100 3300 2100 3000 1800 2400 2/90x45 2400 4200 6000 3900 5700 3900 5100 3600 4500 2700 3300 4800 3000 4200 2700 3900 2700 3600 3000 2400 3600 2400 3300 2100 3000 2100 2700 3/90x45 2700 5400 6000 5100 6000 4800 6000 4500 5100 3000 4200 5700 3900 5400 3600 4800 3600 4200 Roofing Type Concrete (80 kg/m2) Roof Load Width 3000 4500 6000 7500 Size Height MGP10 Kerto-T MGP10 Kerto-T MGP10 Kerto-T MGP10 Kerto-T 2/90x35 2400 3000 4200 2700 3600 2400 3000 2100 2700 2700 2100 3000 1800 2700 1800 2400 1500 2100 2/90x45 2400 3900 5400 3600 4800 3300 4200 3000 3600 2700 3000 4200 2700 3600 2400 3300 2100 2700 3000 2400 3300 2100 2700 1800 2400 1500 2100 3/90x45 2700 4800 6000 4500 5700 3900 5100 3600 4500 3000 3900 5100 3600 4500 3000 3900 2700 3300 Maximum Stud Height (mm) Jamb Studs - Lower Storey - Floor Load Width <3.6m Roofing Type Sheet Metal (40 kg/m2) Roof Load Width 3000 4500 6000 7500 Size Height MGP10 Kerto-T MGP10 Kerto-T MGP10 Kerto-T MGP10 Kerto-T 2/90x35 2400 2700 3900 2700 3600 2400 3300 2400 3000 2700 2100 3000 2100 2700 1800 2700 1800 2400 2/90x45 2400 3900 5400 3600 4800 3300 4500 3300 3900 2700 3000 4200 2700 3900 2700 3600 2400 3300 3000 2100 3300 2100 3000 1800 2700 1800 2400 3/90x45 2700 5100 6000 4800 5700 4500 5400 3900 4800 3000 3900 5100 3600 4800 3300 4200 3000 3900 Roofing Type Concrete (80 kg/m2) Roof Load Width 3000 4500 6000 7500 Size Height MGP10 Kerto-T MGP10 Kerto-T MGP10 Kerto-T MGP10 Kerto-T 2/90x35 2400 2700 3600 2400 3000 2100 2700 1800 2400 2700 1800 2700 1800 2400 1500 2100 1500 1800 2/90x45 2400 3600 4800 3300 4200 3000 3900 2700 3300 2700 2700 3600 2400 3300 2100 2700 1800 2400 3000 2100 2700 1800 2400 1500 2100 1500 1800 3/90x45 2700 4500 5700 3900 5100 3600 4500 3300 3900 3000 3300 4500 3000 3900 2700 3600 2700 3000

WALL PLATES

WALL PLATES

Top Plates, where the design permits, may be made up of either single member or a 2 ply Top & Ribbon Plate configuration. Top Plates are designed to span across the studs below. Top Plate are to be provided along the full length of all walls, including over openings.

Bottom Plates are designed to span across lower supporting Floor Joists. Where the bottom plate is fully supported by a concrete slab, continuous blocking or rimboard they shall be a minimum of 35mm wide x the breadth of the supported studs over.

Ends of Bottom Plates may be butt-jointed provided they are fully supported by floor joists, blocking or a concrete slab.

Bottom Plates supporting Jamb Studs to openings greater than 1200mm, or below Concentrated Load Studs, shall be fully supported.

Jamb Studs Concentrated Load Studs

Top & Ribbon Plate

Solid Blocking min. 35mm thick

Single or Upper Level Framing

Bottom Plate Supporting Floor Joists

Roof Trusses or Rafters

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Supporting Floor Joist Centres
Refer to page 20 for specification notes

Supported Floor Framing

17 Max Roof Load Width (mm) Bottom Plates - Single or Upper Storey Roofing Type Sheet Metal (40 kg/m2) Concrete (80 kg/m2) Supp. Centres 450 600 450 600 Size MGP10 Kerto-T MGP10 Kerto-T MGP10 Kerto-T MGP10 Kerto-T 90x35 5600 7500 4200 6400 5600 7500 2300 3700 2/90x35 7500 7500 7500 7500 7500 7500 5000 7000 90x45 7500 7500 6300 7500 7500 7500 3700 5800 2/90x45 7500 7500 7500 7500 7500 7500 7500 7500 Max Roof Load Width (mm) Top Plates - Single or Upper Storey Roofing Type Sheet Metal (40 kg/m2) Concrete (80 kg/m2) Truss Centres 600 900 1200 600 Stud Centres 450mm Size MGP10 Kerto-T MGP10 Kerto-T MGP10 Kerto-T MGP10 Kerto-T 90x35 1500 2400 1500 2400 1400 2200 2500 4000 2/90x35 4700 5000 4600 4800 4100 4400 7200 7500 90x45 2400 4000 2300 3800 2200 3600 2500 6200 2/90x45 7500 7500 7500 7500 7400 7500 7500 7500 Stud Centres 600mm Size MGP10 Kerto-T MGP10 Kerto-T MGP10 Kerto-T MGP10 Kerto-T 90x35 1500 2400 1400 2300 1300 2100 2100 3300 2/90x35 4600 4900 4500 4700 4000 4300 6200 6300 90x45 2300 3900 2200 3700 2100 3500 3100 4900 2/90x45 7500 7500 7500 7500 7200 7500 7500 7500
Supporting Floor Joist Centres
Bottom Plate Supporting Floor Joists
Top & Ribbon Plate
Upper Level Framing
Lower Level Framing (2 Storey Dwelling)
18 Max. Roof Load Width (mm) Bottom Plates - Lower Storey - 450mm Supporting Joist Centres Stud Centres 450 600 Floor Load Width 1800 3600 1800 3600 Roofing Type Sheet Metal (40 kg/m2) Size MGP10 Kerto-T MGP10 Kerto-T MGP10 Kerto-T MGP10 Kerto-T 2/90x35 6600 7500 2200 7500 3300 7300 - 3300 2/90x45 7500 7500 7500 7500 7500 7500 4200 7500 Roofing Type Concrete (80 kg/m2) 2/90x35 4000 7300 1100 5400 1500 4400 - 1800 2/90x45 7500 7500 6800 7500 4700 7500 4200 6400 Max. Roof Load Width (mm) Bottom Plates - Lower Storey - 600mm Supporting Joist Centres Stud Centres 450 600 Floor Load Width 1800 3600 1800 3600 Roofing Type Sheet Metal (40 kg/m2) Size MGP10 Kerto-T MGP10 Kerto-T MGP10 Kerto-T MGP10 Kerto-T 2/90x35 3000 7100 - 2400 900 4900 -2/90x45 7500 7500 4500 7500 6000 7500 - 7500 Roofing Type Concrete (80 kg/m2) 2/90x35 1600 4200 - 5400 - 2800 -2/90x45 5000 7500 2700 6800 3500 6700 - 4700 Max. Roof Load Width (mm) Top Plates - Lower Storey 450mm Supporting Stud Centres Floor Joist Centres 450 600 Floor Load Width 1800 3600 1800 3600 Size MGP10 Kerto-T MGP10 Kerto-T MGP10 Kerto-T MGP10 Kerto-T Roofing Type Sheet Metal (40 kg/m2) 2/90x35 7500 7500 7500 7500 7500 7500 3700 4700 2/90x45 7500 7500 7500 7500 7500 7500 7500 7500 Roofing Type Concrete (80 kg/m2) 2/90x35 6900 7500 5000 6200 4800 5300 2000 2800 2/90x45 7500 7500 7500 7500 7000 7500 5100 7300 Max. Roof Load Width (mm) Top Plates - Lower Storey 600mm Supporting Stud Centres Floor Joist Centres 450 600 Floor Load Width 1800 3600 1800 3600 Size MGP10 Kerto-T MGP10 Kerto-T MGP10 Kerto-T MGP10 Kerto-T Roofing Type Sheet Metal (40 kg/m2) 2/90x35 7500 7500 3600 4500 5900 6400 -2/90x45 7500 7500 7500 7500 7500 7500 7500 7500 Roofing Type Concrete (80 kg/m2) 2/90x35 4700 5100 1900 2500 3400 3700 -2/90x45 7300 7500 5400 7500 6600 7500 4600 5600 Refer to page 20 for specification notes

RAKING WALL STUDS TO GABLE WALLS

For external non load bearing gable end walls the size of the stud is to be detemined by considering the averaging height of the 5 longest studs against the table below. Noggins are to be installed at 1350mm centres maximum.

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Gable Frame Raking Wall Studs Studs Centres 300 450 600 Size Kerto-T Kerto-T Kerto-T 90x35 4000 3700 3600 90x45 4200 4000 3700 2/90x35 4700 4200 4100 2/90x45 5000 4500 4200 Noggins at 1350mm max. H1 H2 H3 H4 H5
Considered Stud Height = (H1 + H2 + H3 + H4 + H5) 5 RAKING WALL STUDS TO GABLE WALLS

Guide Notes

1. Floor framing members are to be installed per AS1684.2, AS1684.3 and good building practice.

2. Maximum roof load width of 7500mm considered across all applicable designs.

3. All member designs based on N2 wind loading.

4. Maximum roof pitch of 35 degrees.

5. Lower level member designs based on an upper level frame height of 2740 supporting a combined total of 25kg/m2 of external cladding and internal lining.

6. Floor live loadings based on residential 1.5 kPa distributed load & 1.8 kN concentrated.

7. Floor dead loads based on 42 kg/m2 or 19mm particle board flooring and 10mm plasterboard ceiling.

8. Maximum square metre load area considered for a concentrated load is 40m2

9. Concentrated Load Studs are designed to support verticle loads only. No horizontal wind loads have been considered.

10. Jamb Stud designs subject to the required bearing width for the supported Lintel.

11. Widest frame opening considered for Jamb Stud design is 6000mm.

12. Frame openings for Jamb Studs considered in 300mm increments.

13. Top Plates to be tied-down at 1800mm centres maximum.

14. Raking Wall Studs are not designed to support any roof framing. Where outriggers cantilever off the top of the wall the studs should be designed with the appropriate roof load width.

15. Lower Lintels designed to support a 2740mm high wall frames over supporting 25 kg/m2 of combined external cladding and internal wall lining.

16. Member sizes nominated are based on the product being fully protected from moisture and maintains an average moisture content of 15%, or less, over a period of 12 months i.e. K4 = 1.0 per AS1720.1 clause 2.4.2.3.

17. Member sizes nominated are based on construction in coastal areas south of latitude 250 and south of latitude 160 in all other areas i.e. k6 = 1.0 per AS1720.1 clause 2.4.3

20 GUIDE NOTES

Product Handling & Storage

Kerto® products – like all other engineered wood products – must be handled and stored properly and carefully. Incorrect handling and storage may introduce defects on product’s surfaces, edges or corners. Furthermore, the dimensional stability of the product may suffer.

Transport

While transporting or storing the product, increased moisture caused by rain or splashing must be avoided. If Kerto products are moved with a forklift truck, wide enough forks must be used in order to avoid damaging the product. When lifting several packs at a time, the distance between forks must be wide enough to ensure safe lifting. Surface-treated products should be delivered direct to site without additional, unnecessary off-loading during delivery.

Storage

Kerto products must be stored under cover. When storing the products temporarily on site, a solid, straight and dry platform should be used. The height of ground bearers must be at least 300 mm. To avoid twisting of the product, the bearers between packs must be aligned vertically with the ground bearing timbers. The plastic wrapping of each pack must be cut open from underneath to enable moisture to evaporate from the bundles. If the products are stored on site for longer than one week, the bundles must be covered with an additional protective covering. Conditions of the products and protective cover must be monitored regularly during storage.

Handling

Kerto product packs may be unloaded on site with either a forklift or a crane. Approved webbing slings must be used if unloading with crane. It is forbidden to use chains or wires. If unloading is done manually, the pack is opened and the products are carried one-by-one. While cutting the banding, beware of band’s ends. Kerto products should not be dragged or dropped.

Kerto is a light-weight material and is easy to shape, which means notable time and cost savings in construction. Kerto products can be processed with conventional wood working and power tools. There is no need for separate specialist tools.

Surface-treated products should be unloaded individually. If needed, a cellular plastic padding that does not stain, should be used under the webbing slings.

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PRODUCT STORAGE & HANDLING

OTHER PRODUCTS

ITI Australia has a reputation of providing customers with a diverse range of products. By stocking a wide range of structural, outdoor and decorative building products ITI can add value without overheads to our loyal customer base. Some other products on offer include the following.

ITI Spec Frame is a radiata pine LVL with a simular grade to MGP12 pine but with off the benifits of being a engineer wood product. Developed for use in lightweight timber construction Spec Frame is perfect for lintels, rafters and floor trimming beams. A select range of Spec Frame LVL in a 35mm thickness can also be found as an approved product in all propriety roof truss manufacturing software programs.

ITI Spec Joists, proudly manufactured by Pacific Woodtech in Washington State USA, is a wood I-Beam product developed for use as floor joists and rafters. It is light weight, easy to install and priced economically. ITI offer an internal design service to assist customers with the specification of this product. Please contact your nearest ITI office for details.

Design Pine is a range of exterior structural and decorative timber products coated with a genuine primer. Impregnated with a preservative to prevent the onset of decay and resist insect attack in all above ground applications, Design Pine is finger jointed and / or laminated for increased dimensional stability to give a reliable product for years to come. Don’t be fooled by blue imitations, ask for Design Pine by name.

EziTrimPlus is a range of elite primed internal mouldings manufactured from sustainable plantation grown Radiata Pine. The Radiata Pine has been milled, kiln dried and docked to remove all knots and visible imperfections. This is then finger-jointed to produce a product which has no defects whilst also having the superior finish that you have come to expect from the EziTrim Brand.

ProLam is a range of finger jointed and laminated merbau products for use in external structural and decorative applications. ProLam merbau offers a dimensionally stable and high strength building product which has been developed specifically for the outdoors. ProLam is beautiful, durable and strong.

Need exterior grade performance from a sustainable source?

Experience the Extreme Timber range. Extreme Timber provides you with the products which have been missing from the traditional outdoor softwood range. The range includes Extreme Post and Extreme Beam. Extreme Post is a pine post with hazard class 4 treatment making it capable of being installed directly into the ground. Extreme Beam is glue laminated GL8 grade beams in the same widths as traditional treated pine. Extreme beam offers additional flexibility for treated pine outdoor structure design.

The worlds first treated pine product that exceeds BAL-40 requirements as set out in the Australian Standard AS3959-2018. Currently available in 45mm structural MGP10, decking and screening, FLAMEfixx dFx® products also offer protection against fungal decay and insect (termite) attack to hazard level 3 (H3).

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ITI LOCATIONS:

ITI Technical Support Centre

68-80 Kirkham Road West, Keysborough, Victoria 3173

E || ewp@iti.net.au

P || 03 9392 8400

ITI Queensland (Brisbane)

63 Creek Street, Bundamba, Queensland 4034

P || 07 3436 8400

E || ewpqld@iti.net.au

ITI New South Wales (Sydney)

59 Dunheved Circuit, St Marys, New South Wales 2760

P || 02 8805 5000

E || ewpnsw@iti.net.au

ITI South Australia (Adelaide) 82-94 Grand Trunkway, Gillman, South Australia 5013

P || 08 8447 0400

E || ewpsa@iti.net.au

John Cook & Sons (Sydney)

116 Links Road, St Marys, New South Wales 2760

P || 02 9833 0355

E || ewp@johncook.net.au

ITI Victoria (Melbourne) 68-80 Kirkham Road West, Keysborough, Victoria 3173

E || ewpvic@iti.net.au

P || 03 9394 8400

ITI Queensland (Townsville) 46-50 Perkins Street West Railway Estate

P || 07 4724 5509

E || ewpqld@iti.net.au

ITI New South Wales (Newcastle) 19 Nelson Road, Cardiff, New South Wales 2285

P || 02 4953 7666

E || ewpnsw@iti.net.au

ITI Western Australia (Perth) 102-108 Bannister Road, Canning Vale, Western Australia 6155

P || 08 9256 5700

E || ewpwa@iti.net.au

WA NT SA QLD NSW ACT VIC TAS

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