FEATURING PLYWOOD IN BUILDINGSPlywood Used in So Many Different Ways Table of Contents Introduction ........................................................................................................ 3 Plywood Characteristics ...................................................................................... 3 Cross Laminated Two Way Strength and Stability ......................................................... 3 Face Quality ................................................................................................................... 4 Quality Guaranteed........................................................................................................ 4 When you specify plywood be sure it has the PAA certification mark .......................... 5 Glue Bond....................................................................................................................... 6 Curving Plywood ............................................................................................................ 7 Acoustics and Sound Insulation ..................................................................................... 7 Thermal Performance .................................................................................................... 8 Lightweight panels ......................................................................................................... 9 Fire Hazard Properties ................................................................................................... 9 Floor Material And Coverings ........................................................................................ 9 Wall and Ceiling Linings ............................................................................................... 10 Other Materials ............................................................................................................ 10 Energy Costs of Construction ....................................................................................... 10 Plywood Exterior Cladding ................................................................................ 11 Durability Requirements .............................................................................................. 11 Installation ................................................................................................................... 12 Bracing Resistance of Plywood Exterior Cladding........................................................ 13 Typical Joint Details for Plywood Exterior Cladding..................................................... 14 Finishing ....................................................................................................................... 15 Plywood Interior Wall & Ceiling Lining ............................................................. 17 Plywood Specification .................................................................................................. 17 Installation ................................................................................................................... 17 Plywood Thickness and Support Spacing’s .................................................................. 18 Bracing Resistance of Plywood Wall Lining.................................................................. 19 Finishing ....................................................................................................................... 19 Lightweight Roofing System .............................................................................. 20 Plywood Specification .................................................................................................. 20 Roofing Overlay............................................................................................................ 20 Installation ................................................................................................................... 20 Revision History................................................................................................. 22 2 However as a result of plywood’s cross laminated construction.e. interior wall and ceiling linings. With low costs. (7mm for 7mm plywood. Plywood can be worked with normal timber working tools. and 10-12 for thicker plywoods). lining and roofing. For flooring. and as a lightweight. but strong roofing substrate. please refer to the relevant EWPAA publications. This brochure provides guidance on the use of plywood cladding. plywood has excellent impact and damage resistance. and is exceptionally dimensionally stable when used in applications subject to significant variation in humidity.resists impact and edge damage Choice of face veneer to suit application Guaranteed quality and safety of EWPAA branded plywood Durable glue bond Can be bent to form curved finishes Good acoustic properties Efficient thermal performance Known fire hazard properties Low energy costs of manufacture Lightweight and easy to install Cross Laminated Two Way Strength and Stability Plywood is assembled from timber veneers so it has most of the characteristics of solid timber. Additionally. available from the EWPAA Web Site. 3 . decorative flooring. good looks and superior structural performance real wood plywood products are being used creatively as exterior cladding. Plywood Characteristics Apart from the style and warmth of real timber. plywood can be fixed close to panel edges. i. plywood has many added advantages Cross laminated strength . and applications such as bracing and box beams. timber’s tendency to split along the grain is overcome. rigidly gluing alternate veneers at right angles.Introduction Plywood products are part of a quiet revolution occurring in residential and light commercial building practices. Veneer quality S defines an appearance grade which permits natural characteristics such as knots as a decorative feature. all open defects are filled. Veneer quality B is an appearance grade suitable for high quality paint finishing. Thus for a clear finished aesthetic application requiring one viewed surface AD grade plywood would be specified.Face Quality Plywood can be ordered with face veneers to suit the application. Veneer quality A is a high quality appearance grade suitable for clear finishing. 4 .e. Finally veneer quality D can have open defects and would normally be used as a back veneer on a plywood panel. A choice of timber species other than pine for outer veneers is also available. Veneer quality C is a non-appearance grade with a sanded solid surface i. Under similar circumstances if a painted finish is required then a minimum of BD grade is the specification. Quality Guaranteed For guaranteed compliance and reliability specify that the plywood used must be branded with the appropriate EWPAA product certification stamp. This stamp certifies the product has been manufactured under a formalised process based quality control program and is therefore fit for use as described in this literature. lining and roofing manufactured under the EWPAA quality brand stamp assures product conformance to the relevant product standard. as a product certification body for plywood and other glued structural veneer products. 5 .When you specify plywood be sure it has the PAA certification mark The EWPAA has been accredited by the Joint Accreditation System of Australia and New Zealand (JAS-ANZ). Plywood cladding. the peak accreditation body in both countries established by government treaty. the Type C being more concentrated to meet the requirements of humid applications. The Type C and D bonds used in interior plywood to AS/NZS 2270 are formed using light coloured urea formaldehyde adhesive. thus are suitable for long term permanent exposure. The plywood however may need to be preservative treated. if used in the correct dry interior environment such as a nonstructural interior panelling. to prevent fungal attack to the wood. This adhesive is semi durable and can only be used in semi exposed conditions such as exterior door skins. hot or cold. 6 . However. tests have proven the modern resins used for the bonds are durable. The Type B bond is an alternative bond used in exterior plywood to AS/NZS2271 and is achieved using melamine fortified urea formaldehyde adhesive which is light in colour. plywood products bonded with phenolic bonds have formaldehyde emissions of 0.Glue Bond Structural plywood manufactured to AS/NZS 2269 has a permanent Type A phenolic bond which is distinctively dark in colour. These bonds are not durable in exposed conditions or conditions of moisture and/or high temperature.1ppm. and can provide plywoods that meet the E1 formaldehyde emission requirements. Once formed and cured these polymers are new chemical entities. Phenolic bonds are generally ‘cross linked polymer chains’ made from measured amounts of phenol and formaldehyde. These values were established on large scale chamber tests carried out by the American Plywood Association and Hardwood Plywood Manufactures Association in USA. well below the internationally accepted recommended E1 emission level of 0.03ppm. Exterior plywood to AS/NZS 2271 can be ordered with the Type A bond. This bond should not be specified if ambient conditions exceed 50oC or 18% moisture content. and verified in Australia on locally produced plywood. These A bonds do not deteriorate under wet conditions. Apart from making an excellent durable glue bond for wood products. when exposed to the weather or used in damp conditions. and are extremely stable and do not break down into phenol and formaldehyde. Marine plywood is manufactured with the same permanent Type A bond.00 – 0. Another option is the inclusion of lead sheet in the wall system.6 4. secondly. However a double-sided plywood partition reduces the level of noise transmitted by around 35 decibels.4 3.8 1.Curving Plywood Plywood can be safely curved for applications such as ceilings and feature walls.3 2. To achieve higher levels with timber framing requires staggered or double stud wall systems fitted with sound insulation.0 4. Two factors should be considered before selecting the plywood thickness. with tighter radii the change of radii between the ends of each sheet (which tend to be straighter) and the balance of the panel becomes more visually obvious. Table 1 : Recommended minimum bending radii for plywood linings Normal Along face Across face Thickness (m) (m) (mm) 4.5 7 11 0. the amount of force and hence the increased fixings that are required to pull and hold the panel in tight radius.6 6. Alternatively.6 1. high efficiency acoustic partition. There is no such thing as an ultra-lightweight. The most important factor determining the ability of a wall system or lining to absorb transmitted sound is its mass per surface area.0 9 12 15 17 2.4 Acoustics and Sound Insulation Plywood is an excellent reflector of sound. Therefore for tighter radii it is best to use thinner plywoods and closer supports.3 3. Table one provides guidance for the minimum recommended radii. 7 . Firstly. an acoustic property put to good use in applications such as the internal lining of the Sydney Opera House.0 1. perforated plywood with sound insulation behind can act as a sound absorbing lining. thicker panels require considerable force particularly in thickness above 12mm. 15. 8 .04 0.08 0. Thus in the cool of the evening following a hot day the wall will cool rapidly and not keep heating the interior.Thermal Performance The real advantage of lightweight timber construction in a subtropical or tropical climate is the ability to provide very liveable buildings with wall systems having low thermal mass.58 1.93 in the above table. in winter a lightweight timber can be a very effective insulator and keep the warmth inside the building.04 0.04 0.90 Note: As a non-reflective 20mm air gap has an R value of 0. or if the building is to be air conditioned.36 0.2 (see table 2).08 0. Table 2 : Thermal resistance of timber framed plywood clad walls 2o Outdoor air film 12mm Plywood Cladding 20mm reflective air gap R1.5 batts into a plywood clad with reflective sisalation on 90mm studs will result in a wall with an average R exceeding 2.12 0.12 2. Therefore.04 0.62 0. Walls with high thermal mass hold substantially more heat thus continue to radiate heat in the evening.36 to 1. an insulation wall system without sisalation would reduce the total r value from 2.5 Insulation 90mm Stud 6mm Plywood Lining Indoor Air film TOTAL R VALUE R Value (m c/Watt Through Through Insulation Stud Zone 0. In cooler climates.50 0. For example the addition of R1. the addition of insulation to the timber structure can provide equivalent thermal insulation to solid construction. Hardwood plywood may be up to 40% more dense than pine plywood. Fire Hazard Properties The Building Code of Australia (BCA) is a uniform set of technical provisions for the design and construction of buildings and other structures throughout Australia. you can download the “EWPAA Fire Resistance” fact sheet from the EWPAA Web Site. Wall and Ceiling Linings 3. For more information. and designers and builders must ensure that their constructions satisfy this section. Floor Material And Coverings Species Thickness CRF Pine. The following tables list the properties for each of these types. The BCA includes a section on Fire Resistance. Other materials. saving time and money.Lightweight panels Plywood is strong enough to do the job but still light enough to be installed by one person.5 Smoke Development Rate Less than 750 percent-minutes 9 . Hoop – Araucaria cunninghamii Pine. thus a 2400 x 1200 x 12mm plywood panel weighs approximately 20kg. Radiata – Pinus Radiata Pine. Floor Materials and Coverings 2. There are 3 categories for plywood used in constructions : 1. Slash – Pinus Elliottii 15mm or greater 17mm or greater 17mm or greater Between 2. The density of pine plywood is around 590kg/m3.2 and 4. wood. Radiata – Pinus Radiata 6mm or greater 3 < 250 Lauan – Shorea agsaboensis 6mm or greater 3 < 250 Pine.0 Plywood Species Other Materials Face Veneer Common Name Botanical Name Spread of Flame Index (0-10) Smoke Developed Index (0-10) Klinkii pine Aurancaria hunsteinii 8 4 Radiata Pine Pinus radiata 8 2 Radiata Pine (scorched and brushed surface) Pinus radiata 7 2 Energy Costs of Construction Plywood is manufactured from a natural. A comparison of processing energy used to manufacture cladding materials is provided in table 3 Table 3: Process energy for various claddings Cladding Material Processing Energy (mJ/m2) 19mm timber weatherboards 90 12mm plywood 114 150mm concrete blocks 300 0.Wall and Ceiling Linings Minimum Thickness (mm) Group No. Average Specific Extinction Area 2 (m /kg) Pine. Slash 6mm or greater 3 96.4 Pine.6mm galvanised steel sheet 308 100mm bricks 1000 10 . The energy requirements for the manufacture of plywood are relatively low when compared to most other competitive building products. Hoop 6mm or greater 3 82. renewable resource. and exterior plywood to AS/NZS2271 can be ordered with Type A bonds. For maximum cost effectiveness it is good practice to use structural plywood as a wall bracing as well as cladding. the edges of the plywood panel should be sealed to minimise water uptake in the end grain. The preservative treatment currently available are Ruply and Ammoniacial Copper Quaternary Compounds (ACQ) . For maximum long term performance to exposed face of the plywood cladding should be finished with a water repellent or a 100% acrylic latex paint system. structural plywood cladding provides tie down of the top plate to the bottom plate against wind upliftrefer to the EWPAA “Structural Plywood Wall Bracing Manual” for details. Additional cost saving can be made with structural plywood clad framing from eliminating the need to use a ribbon top plate to strengthen the top plate for trusses or rafters that don’t coincide with the stud location. and the panel be manufactured with permanent Type A bonds. Some plywood cladding products presently available in the marketplace have a machined or textured face veneer which provides a good surface to hold paint. Durability Requirements The two most important characteristics for guaranteed long term performance of plywood as exterior cladding are treatment against fungal and insect attack. veneer treatment systems. Additionally. and a number of pressure treatments for finished panels. 11 . available from the EWPAA Web Site.3. and is most readily applied while the plywood is in a pack. The preservation treatment should be a minimum of hazard level H3 “outdoors above ground” as defined by AS/NZS1604. Significant costs savings are possible if the cladding is structural plywood as it can also act as bracing to protect the structure from wind and earthquake forces. In addition to bracing the structure. Structural plywood to AS/NZS2269 has a Type A bond. including Copper Chrome Arsenate (CCA) and Light Organic Solvent Preservatives (LOSP) . modern architectural look for the most basic or elaborate building project. The edge sealing can be done using a water repellent or the same primer used on the face.Plywood Exterior Cladding Preservative treated structural or exterior plywood applied direct to studs as exterior cladding can provide a cost efficient. before installation. Other panel sizes are available subject to special enquiry.8mm dia x 50mm Screws to timber No. For some applications stainless steel or silicon bronze fasteners may be required. 2700mm. 12 . Installation Typically. unless it is under a horizontal joint. The length of standard plywood cladding products available are 2440mm. thus the studs need to be at 600mm or 400mm centres. The minimum plywood thickness for external cladding are given in table 4 .reduces and disguises any surface checking of the face veneer effectively by dispersing or reflecting the incidence of solar radiation. 2745mm with 3050mm sheets having limited availability.e. Noggings are not required for vertical installation of plywood cladding.8 x 40mm Screws to steel No. but may also be placed horizontally (i. leave a 2-3mm gap between joints on studs to accommodate panel movement due to moisture changes.10 x 45mm Notes: 1. 2. These shiplap joints allow for some panel movement. Table 4: Minimum plywood thickness (mm) for external cladding Stud Spacing (mm) Plywood face grain running Plywood face grain running vertically horizontally Plywood Stress Grade 400/450 600 900 400/450 600 900 F11 12 12 17 8 8 12 F14 12 12 16 7 7 12 Table 5: minimum recommended fastener sizes Plywood Thickness Up to 7mm Up to 21mm Nails to timber 2. If square edged panels are used. Nails are flathead. plywood cladding products are manufactured to suit 1200mm cover with shiplapped or other machines joints. Fasteners must be no-staining and corrosion protected.8 x 30mm No. and the minimum recommended fastener sizes are given in table 5.10 x 45mm No. and screws are self drilling countersunk head. long dimension across the studs) if horizontal studs are nogged and detailed to prevent water ingress through the joints.8mm dia x 40mm 2. Plywood claddings are normally installed vertically. Where used. sisalation must be of the vapour permeable type. flashing timber or elastomeric sealants. battened joints.0kN/m of bracing resistance per 900mm of clad wall length. depending on spacing’s and connection to the sub floor. a 2-3mm gap must be provided at all panel edges. or the framing is steel. Shiplap joints are best installed facing away from the prevailing weather. the use of this extra protection is recommended.It is essential in plywood cladding installation that all joints are weatherproofed using shiplapped joints. from 3. The use of sisalation or building paper is optional. To allow for movement in the panel due to excessive wetting during rainy periods. in accordance with all of the requirements of the EWPAA “Structural Plywood Wall Bracing Manual” (available from the EWPAA Web Site) will provide. 13 . when butt or horizontal joints are utilised. Bracing Resistance of Plywood Exterior Cladding Plywood cladding fixed to timber stud walls. however. caulking. Typical Joint Details for Plywood Exterior Cladding Vertical Joint Details Horizontal Joint Details 14 . Corner Joint Details 15 . Finishing The plywood surface must be protected to avoid mechanical breakdown (surface checking) and maximise its appearance and durability. Light colours are recommended in preference to darker colours as they give superior performance. Always use a reputable paint brand as cheaper alternatives do not always perform. 16 . In humid areas where mould may grow on the paint surface the use of quality mouldicide in the paint is recommended. High quality oil based exterior wood stains or 100% acrylic latex paint systems are recommended. For ceilings. however. Plywood Specification If the lining is designed to have a secondary as a bracing or a structural diaphragm the plywood must be structural plywood to AS/NZS2269. timber source and the method of veneering and plywood manufacturer. Alternatively. some sliced veneers are available and can be specially matched for colour and figure. 2700mm x 1200mm panels are not as readily available. the plywood can be V grooved thus proving a lining having a traditional planked effect to V jointed boards. 17 . to ceilings or as an eaves lining on verandahs. The plywood must be manufactured to a minimum of AS/NZS2270. for non structural lining applications completely protected from the weather any plywood product with appropriate face veneer is acceptable. The face veneers are sanded smooth ready for the selected surface finish. If square edged panels are used framing is required to support all edges. Installation To minimise shrinkage or expansion of panels after installation. However. The back side of the decorative plywood normally is nondecorative and is of reduced quality. The plywood face can be traditional rotary peeled or sliced veneer. This is best achieved by breaking open the packs and laying out the panels to allow air to circulate around them. Most plywood lining in the marketplace has attractive rotary peeled pine veneer faces. Recommended minimum plywood thicknesses are given in table 6. Standard panel size is 2400mm x 1200mm. it is good practice to let the plywood panels acclimatise to room temperature and humidity for several days before final fixing.Plywood Interior Wall & Ceiling Lining Plywood with a high quality real wood face veneer can be clear finished to give a real timber appearance to walls. 9mm and 12mm plywood linings are available with tongued and grooved edges to negate the need for nogging under the panel sides. The appearance of decorative veneer varies considerably depending on species. Ceiling lining panels must be installed with the face grain running across or at right angles to the ceiling battens. Plywood Thickness and Support Spacing’s Table 6: Recommended minimum plywood thickness and support spacing’s Stud/support spacing (mm) 450 600 900 1200 Wall Lining 4mm 6mm Ceiling lining 6mm 6mm 9mm 12mm Note: for ceiling lining the face grain must run across the span. copper or copper coloured flathead nails or countersunk screws can look very effective in clear finished timber. to avoid head pull through. or the screws have countersunk heads. Alternatively. Waterproofing can be achieved by using a polythene vapour barrier. 18 . the use of silicone bronze. battens are recommended and the masonry wall must be waterproofed. Wood coloured putty can be used to stop fastener holes if required. If the plywood lining is fixed to exterior masonry walls. For ceiling panels the nails used normally have flat heads.Wall linings may be fixed to the wall framing with structural elastomeric adhesives and/or panel pins. 3. The bullet head nails may be punched just below the plywood surface.1kN/m 5. Bracing Resistance applies to panels a minimum of 900mm width and a maximum wall height of 2700mm. The use of high gloss finishes and paints tend to highlight naturally occurring and manufacturing characteristics of plywood such as changes in grain and beat marks from the sanding. stains. Table 7: Limit State Bracing Resistance of Structural Plywood Wall Lining (6mm F11 minimum) Fixing Details Nailed at 100mm centres around all edges and butt joints and at 200mm on the intermediate studs Glued along all edges and intermediate supports with a continuous 6mm bead of elastomeric adhesive and nailed at 200mm centres Bracing Resistance 2. Structural elastomeric adhesive that meets American Plywood Association Standard AFG-01. Fixing of the bottom plate to the sub-floor can be nominal nailing for the 2. Tinted clear finishes e.1 kN/m system but for the 5. allow decorators to create a modern coloured key timber décor. Matt finishes and paints are recommended to provide a natural timber finish.5mm diameter x 40mm bullet head.3kN/m Notes: 1.3kN/m system the fixing must be strapped or bolted at a minimum of 1200mm centres as detailed in the EWPAA “Structural Plywood Wall Bracing Manual” which is available from the EWPAA Web Site.Bracing Resistance of Plywood Wall Lining Structural plywood wall lining of a minimum 6mm thick F11 (including panels grooved at 100mm centres). 4. 5.g. or clear finishes are recommended for plywood linings. Finishing High quality paints. 2. fixed to timber and stud walls in accordance with Table 7 can provide bracing resistance against wind and earthquakes. liming grey. Studs spaced at a maximum of 600mm centres. Nails a minimum of 2. 19 . Installation of Structural Plywood Roofing System Plywood Specification The plywood to be used is CD or DD grade T&G structural plywood to AS/NZS2269. perpendicular to.Lightweight Roofing System T&G structural plywood in combination with shingles or overlayed waterproof membranes can provide a safe. 20 . The plywood should be installed with 2-3mm gap at all sheet edges. the rafters or trusses. and the plywood must be continuous over two or more spans. non-trafficable plywood roof system to support lightweight roofing are given in table 9. rubber. the appropriate fixings are given in Table 8. light commercial and industrial buildings. acrylic or bitumen membranes or metal tiles or decking. Specialised T&G plywood with a decorative underside. The design of plywood diaphragms is covered in Appendix J of AS/NZS1720. timber shakes or shingles. then the plywood must be treated as a floor and design data sourced from the EWPAA design manual “T&G Structural Plywood for Residential Flooring” available from the EWPAA Web Site.e. usually V grooved to give a planked effect. Roofing Overlay The roofing overlay must be waterproof and durable. Installation The two major requirements for the T&G structural plywood are the face must run across i. Square edged plywood can be used but will require nogging under the side joints. The T&G plywood provides a structural diaphragm and eliminates the need for other forms of bracing in the roof system.1 Timber Structure Code. It may be decorated asphalt or fibreglass shingles. flat or curved roof system in residential. lightweight. Thickness/span details for a structural. can be used as a combined structural roof and decorative ceiling. If the roof is to be trafficable. and the minimum plywood thickness relative to truss or rafter spacing are listed in Table 9. 2 “wind actions”.8 x 40mm Countersunk self drilling wood screws General roofs areas Within 1200mm of Roof Perimeters 150 100 150 100 100 (for 1200mm spans) 50 (for 1200mm spans) 150 (for 900mm & 800mm spans) 75 ( for 900 & 800mm spans) 150 100 Notes: 1.05mm dia.) Rafter or Truss Spacing (mm) 800 900 1200 Minimum Allowable Plywood Thickness (mm) F8 F11 F14 13 12 12 16 15 15 19 17 16 21 . For higher wind speeds or cyclone sites fixings are to be designed for uplift in accordance with AS/NZS1170. 2.8mm dia. Table 9: Allowable structural plywood thickness and rafter spacing for plywood non-trafficable roofs supporting light weight roofing systems (20kg/m2 max. 8 x 40mm Countersunk self drilling wood screws 3.Table 8: Fixing of T&G Structural Plywood to Non Trafficable Roofs Design speed (permissible Stress) 33 metres/second 41 metres/second Non Cyclonic Fastener Spacing at End and Intermediate Supports (mm) Minimum Fastener 2. X 50mm Flathead Nails No. X 50mm Flathead Nails No. The above fixings are applicable to timber species with joint strength J4 and JD4 and to plywood up to 21mm in thickness. Revision History Revision 4 3. Updated Fire resistance information Initial Release Date Who 07-02-12 MB 18-12-08 MB 28-10-08 MB 22 .0 2. Reformatted.0 Changes Updated logos and member list Updated to include latest JAS-ANZ Logos Fixed missing fastener description for installation of exterior cladding.0 1. Updated several pictures. nz www.au Visit the EWPAA Website to get the latest information.bigrivertimbers. (Wairarapa) Nelson Pine Industries Ltd PNG Forest Products Ltd RH (PNG) Ltd Valebasoga Tropikboards Ltd.com. Particleboard and MDF Member Name Alpine MDF Industries Pty Ltd Carter Holt Harvey Woodproducts Australia D & R Henderson Pty Ltd Tasmanian Wood Panels (Aust) Location Australia / Vic Australia / NSW Australia / NSW Australia / TAS Phone Fax +613 5721 3522 1300 658 828 +612 4577 4033 +613 9460 7766 +613 5721 3588 +612 9468 5793 +612 4577 4759 +613 9460 7268 Web www.pngfp.rhpng.ewp.au www. Wesbeam Pty Ltd Location Phone Fax Web Australia / NSW Australia / QLD Australia / NSW Australia / SA +612 6922 7274 +617 3426 8600 +612 6644 0900 +618 8294 3877 +612 6922 7824 +617 3848 0646 +612 6643 3328 +618 8294 6871 www. (Gisborne) Juken New Zealand Ltd.com.chhwoodlogic.alpinemdf.asn.au Australia / SA +618 8721 2709 New Zealand +649 432 8800 +649 432 8830 www.chhwoodlogic.pg www.chhfuturebuild.com. Big River Group Pty Ltd.chhfuturebuild.nz www.Marsden Point LVL Carter Holt Harvey Woodproducts (Plywood) Tokoroa Fiji Forest Industries IPL (West Coast) Ltd Juken New Zealand Ltd.com www.com.drhenderson.ecoply.au Australia / Vic +613 5751 9201 +613 5751 9296 www.com New Zealand +647 886 2100 +647 886 0068 www.au www.wesbeam.com.au Visit www.co.co.shadowclad. Brown Wood Panels Pty Ltd Carter Holt Harvey Woodproducts Australia (Plywood) – Myrtleford Carter Holt Harvey Woodproducts Australia – Nangwarry LVL Carter Holt Harvey Woodproducts .au/register to ensure your products carry genuine EWPAA certification 23 .com. www.ewp.com www.co.com www.nelsonpine.au www.australply.com.com.asn.EWPAA Members Plywood and Laminated Veneer Lumber (LVL) Member Name Ausply Austral Plywoods Pty Ltd.nz Fiji New Zealand New Zealand New Zealand New Zealand PNG PNG Fiji Australia / WA +679 8811 088 +643 762 6759 +646 869 1100 +646 377 4944 +643 543 8800 +675 472 4944 +675 325 7677 +679 8814 286 +618 9306 0400 +679 8813 088 +643 762 6789 +646 869 1130 +646 377 1166 +643 543 8890 +675 472 6017 +675 323 0522 +679 8813 848 +618 9306 0444 www.au www.bwp.ausply.com.