Quality Assurance

ISO 9001

ISO9001 is the international standard that certificates the management systems operated by a business in manufacturing a product. Certification under ISO9001 is a mandatory requirement for chemical and coating suppliers seeking membership of the WPA.

WPA Approval Scheme for preservative and FR products

For preservatives and fire retardants manufactured under ISO9001, the WPA operates a voluntary product approval scheme. The aim of the scheme is to provide independent, expert third-party assessment of a manufacturers performance recommendations.

For details of WPA approved wood preservatives go to WPA approved

WPA approved flame retardant products

WPA Benchmark quality schemes

WPA operates three quality assurance schemes to benchmark the quality of treated products and/or processes against specific standards. These are:

WPA Benchmark
This scheme relates specifically to the durability (resistance to biological degradation) of wood treated with preservative by an industrial impregnation process. It applies specifically to a treated product such as a post.

Products certificated under this scheme are verified as being compliant with BS8417, the wood preservation code of practice.

To see the WPA Benchmark treated wood scheme document go to WPA Benchmark

WPA Benchmark treated wood products and service treaters

Supplier	Benchmark Certificated Product/Service	Contact details
BSW Timber Cargo Carlisle CA6 4BA	Certificate No: TW2012004 Easi-Post 15: Incised spruce fence or deck posts treated with Tanalith E	Tel: 01228 674221 E: W: www.bsw.co.uk
Bond Timber Trerulefoot Saltash Cornwall PL12 5BW	Certificate No: TW 2012001 Redwood components preservative treated with Tanalith E in accordance with BS 8417 for Use Class 4, ground contact applications.	Tel: 01503 240308 E: W: www.whbond.co.uk
Burt Boulton & Haywood Alexandra Dock Newport South Wales NP20 2WA	Certificate No: TW2011003 Creosote treated pine poles, sleepers, fencing and Osmose AC500 treated pine poles and fencing – Use Class 4	Tel: 01633 235845 E: W: www.bbhpreservingwood.co.uk
Calders & Grandidge 194 London Road Boston Lincs PE21 7HJ	Certificate No: TW2011004 Round and sawn redwood components for ground contact (Use Class 4) applications and, redwood and whitewood components for out of ground (Use Class 3) applications treated with Osmose AC500 preservative	Tel: 01205 312420 W: www.caldersandgrandidge.com
Södra Timber Ltd Peel Ports Medway Sheerness Docks Sheerness Kent ME12 1RS	Certificate No: TW2012005 Softwood preservative treated with Osmose Celcure AC350 and Protim E406 in accordance with BS8417 for construction applications	Tel: 01285 646000 E: W: www.sodra.com/en/wood/products-for-uk-and-ireland-timber.co.uk
Cordiners Sawmills Ltd North Deeside Road Banchory Scotland AB31 5PY	Certificate No: TW2016001 Sawn and round pine treated by a high pressure impregnation process in accordance with BS8417 - 15 years desired service life	Tel: 01330 823366 E: W: www.cordiners-sawmills.com
Glenalmond Timber Shore Road Perth Harbour Perth PH2 8BD	Certificate No: TW2012002 Timber components preservative pre-treated by low pressure impregnation with Vacsol Aqua in accordance with BS 8417 for constructional applications	Tel: 01738 587988 E: W: www.glenalmondtimber.com
Imprest AS Ojaküla Lääne-Virumaa Estonia	Certificate No: TW201302 Incised spruce posts pressure treated with Tanalith E8000 in accordance with BS8417 for Use Class 4 ground contact applications.	Tel: +372 507 6924 E: W: www.imprest.ee
James Davies (Abercych) Newbridge Sawmills Cenarth Newcastle Emlyn Ceredigion SA38 9LA	Certificate No: TW2012003 Pine and Douglas fir (round and sawn) treated with Tanalith E for a Use Cass 4 application, 15 year desired service life	Tel: 01239 682477 E: W: www.jamesdaviessawmills.co.uk
M & M Timber Hunt House Sawmills Clows Top Kidderminster DY14 9HY	Certificate No: TW2011002 Osmose MicroPro treated radiata pine, home-grown pine, larch and Douglas fir Incised Agricised round posts	Tel: 01299 832611 E: W: www.mmtimber.co.uk
Rafferty Roof Trusses Unit 2 169a Agivey Rd Aghadowey Coleraine BT51 4AB	Certificate No: FRB201401 Preservative impregnation of general carcassing and construction timbers (joists/studs/rimbeam/plywood) in accordance with BS8417 desired service life specifications	Tel: UK 0845 5217626 Ireland: 02870441061 E: W: www.raffertyrooftrusses.co.uk
Walford Timber The Sawmills Walford Ross-on-Wye HR9 5QS	Certificate No: TW2011001 The “PermaTimber” range	Tel: 01989 563614 E: W: www.walfordtimber.co.uk
W J Components Rix Road Stoneferry Hull HU7 0BT	Certificate No: TW2011005 Service treatment of pine components with Wolman CX10 wood preservative for Use Class 3 and 4 applications with a desired service life of 15 years	Tel: 01482 338950 E: W: www.wjcomponents.co.uk
Marley Eternit Ltd The Old Shipyard Gainsborough Lincolnshire DN21 1NG	Certificate No: TW2012006 Osmose AC350, E415 and FirePro treated products	Tel: 01427 613858 E: W: www.marleyeternit.co.uk

WPA Benchmark FR
This quality scheme is for wood and wood-based materials such as panel products whose reaction to fire classification has been enhanced by treatment by a flame retardant chemical process in factory controlled conditions. Products certificated under this scheme must use a flame retardant produced under an ISO9001 quality management system.

To see the WPA Benchmark FR Scheme Document go to WPA Benchmark FR

WPA Benchmark FR certificated products and suppliers

Benchmark FR Certificated Processor	Certicate no.	Contact details
Lonza Wood Protection Wheldon Road Castleford West Yorkshire WF10 2JT	FR201101	Tel: 01977 71400 E: W: www.archtp.com
WJ Components Ltd Rix Road Stoneferry Hull HU7 0BT	FR201102	Tel: 01482 338950 E: W: www.wjcomponents.co.uk
John Brash & Co The Old Ship Yard Gainsborough Lincolnshire DN21 1NG	FR2013001	Tel: 01427 613868 E: W: www.johnbrash.co.uk
SmartPly Coillte Panel Products Belview Slieverue County Waterford Ireland	FR201302	Tel: +353 (0)5185133 E: W: www.smartply.com

WPA Benchmark FR Build
This quality scheme was developed for the Structural Timber Association (STA). It relates to wood, panel products and engineered wood components defined in STA Product Paper 1 that have been treated with an STA approved FR Build chemicals. WPA in compliance with the UKTFA Approval Scheme and incorporated in elements of timber frame constructions in accordance with UKTFA requirements deliver the required construction phase protection against fire.

To see the FR Build Scheme Document go to WPA Benchmark FRBuild.

WPA Benchmark FR Build certificated products for timber frame

Supplier	Benchmark FR Build Certificated Product/Service	Contact details
Södra Wood Ltd Peel Ports Medway Sheerness Docks Sheerness Kent ME12 1RS	Certificate No: FRB2012001 For the fire retardant treatment of wood, wood based sheet materials and engineered wood products in accordance with the Structural Timber Association.	Tel: 01795 596476 E: W: https://www.sodra.com/en
Glenalmond Timber Shore Road Perth Harbour Perth PH2 8BD Scotland	Certificate No: FRB2011001 Flame retardant treated general carcassing and structural elements (joists/studs/rimbeam/plywood) in accordance with the Structural Timber Association FR Build requirements.	Tel: 01738 587988 E: W: www.glenalmondtimber.com
James Donaldson & Son Elm Park Sawmills Leven Fife KY8 4PS Scotland	Certificate No. FRB201701 Flame retardant treated general carcassing and structural elements (joists/studs/rimbeam/plywood) in accordance with the Structural Timber Association FR Build requirements.	Tel: 01333 422222 E: W: http://www.don-timber.co.uk/
SmartPly Coillte Panel Products Belview Slieverue County Waterford Ireland	Certificate No: FRB201301 SmartPly 18 mm FR Build OSB/3 SmartPly 15 mm FR Build OSB/3	Tel: +353 (0)5185133 E: W: www.smartply.com
Rafferty Roof Trusses Ltd Unit 2 169a Agivey Rd Aghadowey Coleraine BT51 4AB	Certificate No: FRB201302 Flame retardant treated general carcassing and structural elements (joists/studs/rimbeam/plywood) in accordance with the Structural Timber Association FR Build requirements	Tel: UK 0845 5217626 Ireland: 02870441061 E: W: www.raffertyrooftrusses.co.uk
Trade Fabrication Systems Ltd 18 Chesford Grange, Woolston, Warrington WA1 4RQ	Certificate No: FRB/2015001 Product certificated: Norbord No Burn 18mm OSB/3	Tel: 01925 821199 www.tradefabricationsystems.co.uk

National Highways Sector Scheme 4

National Highways Sector Schemes exist to ensure that quality management practices are applied consistently to materials supplied for motorway and county trunk road contracts. Every aspect of highways construction and repair is covered by a specific sector scheme. Procedures for treated wood fencing specification and procurement is covered in Sector Scheme 4 (SS4). Companies must be ISO9001 certificated as SS4 compliant before they can bid for treated wood supply contracts on highways projects.

Much of the SS4 Scheme Document published by UK Accreditation Services (UKAS) is based on and makes direct reference to WPA Quality Guidance Note 2 (QGN2) and the specifications and practices set out in the WPA Manual of Wood Preservation.

WPA Treaters that are ISO9001 - SS4 Certified

SS4 Certificated supplier	Contact details
Bond Timber Saltash, Cornwall	Tel: 01503 240308
BSW Timber Group Earlston Berwickshire	Tel: 0800 587 8887
Burt Boulton & Haywood Newport, South Wales	Tel: 01633 235845
Calders & Grandidge Boston, Lincolnshire	Tel: 01205 312420
James Davies (Abercych) Newcastle Emlyn, Ceredigion	Tel: 01239 682477
Charles Ransford & Son Bishops Castle, Shropshire	Tel 01588 638331
Taylormade Timber Products Sherburn Hill, County Durham	Tel: 0191 372 0524
H S Jackson & Son Ashford, Kent	Tel: 01233 750393
W J Components Stoneferry, Hull	Tel: 01482 338950

WPA Benchmark – setting the standard for wood treatments quality
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