Panel Products Code of Practice
All TTF Members dealing in panel products are required to adopt and comply with this Code of Practice for use as a public and promotional document forming an integral part of the TTF Code of Conduct.
Its aim is to assist Members in the promotion of their company’s efforts to correctly supply accurately marked and labelled panel products and to ensure the exposure of those known to be breaching the Code as a result of wilful product mis-labelling or mismarking.
This Code will apply to all wood-based panel products of any thickness and is binding to all TTF Members dealing in panel products.
1. All plywood packaging must be correctly and legibly marked with correct bond type, visual grade by face quality, nominal board thickness, manufacturer’s mark and specific country of origin. This information on Pack marking must correspond to information contained in the Declaration of Performance where the product is covered by the Construction Products Regulation (CPR). These marking requirements must also apply to all individual panels where practicable. These requirements shall be incorporated in all supply contracts and documentation, including sales invoices.
2. In addition, pack marking on plywood from China should identify the species within the core using the following descriptions:
• Combination of Poplar & Eucalyptus (Combi Core)
• If other species are used, these should be correctly and specifically identified.
Species of face and back veneers should also be clearly identified.
Terms such as ‘as per invoice’ and “MLH” do not adequately describe the product and are not acceptable.
3. Where products are offered as made to BS or BS EN standards, or the recognised standards of other producing nations, Members will seek to ensure that all the specification requirements of these standards are adhered to. For plywood products only, where no contractual reference is made to any of the above types of standards, nominal thickness tolerances and glue bond descriptions specified in the latest available versions of relevant standard(s) to be adhered to – refer to Panel Products Code of Practice ‘Supplementary Guidelines – The Construction Products Regulation And Wood-Based Panels’.
3.1. Wood-based panels for construction, as defined within the Construction Products Regulation will meet the specific requirements set out in the Designated UK Standard EN 13986 for the relevant area of application.
3.2. Marine Plywood supplied by Members will meet the requirements of BS 1088 (Marine Plywood), Part 1 (Requirements) and Part 2 (Determination Of Bonding Quality Using Knife Test). The TTF requires all members placing marine plywood on the market to show evidence of third party quality assurance certification demonstrating full compliance with BS 1088.
3.3. The term ‘WBP’ plywood is obsolete and Members should not use it.The correct terminology is plywood with an EN 314, Class 3 Glue Bond.
3.4. In accordance with the requirements of the CPR all members trading in plywood shall provide:
• A copy of the Declaration of Performance (D.O.P)
• A copy of the Initial Type Testing (ITT) certificate used to produce the D.O.P
• A copy or copies of the glue bond testing undertaken during production of this batch of plywood. [Standard EN:13986, table 12 states that there should be at least one test per eight-hour shift – i.e. one test per
3.5. From January 1st 2018 members trading in plywood from non-EU countries, shall provide evidence of regular, independent third party testing to confirm the glue bond performance claims contained in the product D.O.P.
3.6. As part of routine RPP Due Diligence processes, members must demonstrate evidence of regular species testing for plywood from high risk
supply chains outside of the EU.
3.7. Plywood claiming to meet the higher performance level of EN 636, Class III should, in addition to demonstrating an EN 314, Class 3 Glue Bond, also provide evidence that all veneers used in its construction were sufficiently durable for exterior use which, on the basis of the recommendation in ENV 1099, would be species listed in EN 350 as Class 3 Moderately Durable and Better, which excludes the use of sapwood. Where evidence is not available that the veneers meet this durability requirement, then written advice must be provided that a trader further down the supply-chain or end-user would have to preservativetreat or seal-treat the board in order for it to be sufficiently durable for normal exterior use.
3.8. Where products make CE or Chain of Custody claims, Members must ensure these are reproduced clearly as part of the pack marking. Where necessary this requirement is in addition to the marking requirements of these schemes.
3.9. BS EN 13986 states that where formaldehyde-containing materials, particularly aminoplastic resins, have been added to the product as part of the production process, the product shall be tested and classified into one of two classes: E1 or E2. All members should now trade in product that meets
the classification of E1.
4. No Member shall require any manufacturer or shipper to supply any product in an unmarked or mis-marked condition.
5. No Member will incorrectly describe any panel product offered for sale.
6. No Member will alter or deface any manufacturer’s product or packing markswith the intention of misrepresenting the product’s grade or description. Where Members receive goods that they have reason to believe have been altered or defaced they undertake to inform the National Panel Products Division (“NPPD”) of the supplier involved via the TTF Code of Conduct Disciplinary Procedure.
7. In cases where Members believe a breach of the Code has been committed as a result of product misrepresentation it is agreed that this must be reported to the appropriate authorities. They also undertake to inform the TTF via the TTF Code of Conduct Disciplinary Procedure of the allegation and to co-operate in any subsequent investigation and any resulting disciplinary proceedings.
8. Members undertake to ensure that all relevant personnel employed by themwill be conversant with and abide by the Code of Practice and its implications.
9. Members having ownership of stock, undertake to carry out random consignment inspections in respect of both imported and locally purchased products in order to verify that all product markings and descriptions accord with the requirements of the Code of Practice.
10. Where Members knowingly contravene any part of the Code of Practice, the NPPD will invoke the TTF Code of Conduct Disciplinary Procedure. All Members
agree to abide by the current TTF Code of Conduct Disciplinary Procedure.
11. For specific clarification on adherence to the Panel Products Code of Practice, please refer to Plywood Annex 1 – ‘Supplementary Guidelines – The Construction Products Regulation and Wood-Based Panels’ at the end of this code, otherwise please contact the Timber Trade Federation.