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Calders & Grandidge joins the Wood Protection Association
by Jennie Ward|14 April 26|Build, Supply
Calders & Grandidge (C&G) has become the newest member of the Wood Protection Association (WPA). Based in Boston, Lincolnshire, C&G is one of the UK’s longest-established manufacturers of pressure-treated wood products. With more than 125 years of experience, the company supplies utility poles for the power and communications sectors, railway...
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Supplying Timber | Issue 10
by Jennie Ward|09 April 26|Build, Supply
Welcome to the ninth issue of Supplying Timber, a magazine from Timber Development UK (TDUK) dedicated to the timber merchants, suppliers, manufacturers and tradespeople who are interested in working with timber.
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Timber Topics March 2026 | Use Classes
by Jennie Ward|02 March 26|Build, Supply
As the weather clears and merchants prepare for the spring uplift in decking, fencing and landscaping sales, there is one message that deserves absolute clarity: Use Class 4 is not optional, and it is not open to interpretation. Here, TDUK explains what merchants need to know to sell the right...
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Supplying Timber | Issue 09
by Jennie Ward|24 September 25|Build, Supply
Welcome to the ninth issue of Supplying Timber, a magazine from Timber Development UK (TDUK) dedicated to the timber merchants, suppliers, manufacturers and tradespeople who are interested in working with timber.
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New members endorse WPA strategy on quality treated wood 
by Jennie Ward|21 September 25|Build, Supply
Wood treating plant manufacturer WTT (Wood Treatment Technology) and treated wood producer CJT Timber Sourcing are the latest businesses to join the Wood Protection Association (WPA). Both businesses put quality at the centre of their operations, and it is the WPA’s drive to promote quality assured, fit for purpose treatments that was...
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WPA conference hears of increased demand for correctly treated wood
by Jennie Ward|30 May 25|Build, Supply
Demand for treated wood is on the increase, according to builders’ merchant presentations during the recent Wood Protection Association annual conference. Speakers from the construction supply chain told delegates at the conference - held as part of a two-day event at Oulton Hall in Leeds - that wood use is...
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Ensuring safe decking: The importance of Use Class 4
by Jennie Ward|24 April 25|Build, Supply
Many timber decks in the UK could be unsafe due to inadequate specifications and/or poor installation practices, according to the Timber Decking and Cladding Association (TDCA). Here's how to make sure the deck boards, joists and substructure products you sell, buy and install are safe and fit for purpose. Many...
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Supplying Timber | Issue 08
by Jennie Ward|16 April 25|Build, Supply
Welcome to the eighth issue of Supplying Timber, a magazine from Timber Development UK (TDUK) dedicated to the timber merchants, suppliers, manufacturers and tradespeople who are interested in working with timber.
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Speakers announced for 2025 WPA Conference
by Jennie Ward|24 March 25|Supply
The Wood Protection Association (WPA) has launched the conference programme and speakers for its 2025 annual awards and event, which takes place on 7-8 May at the Oulton Hall Hotel, Spa and Golf Resort in Leeds. The programme theme is: Futureproofing demand for preservative treated wood. For the first time...
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Cladding designers should ‘improve their knowledge of flame-retardant treatments’, warns WPA
by Jennie Ward|27 January 25|Corporate, Design, Supply
The Wood Protection Association (WPA) is calling on timber cladding designers to improve their knowledge about the specification of flame-retardant treatments, in response to the publication of a report on fires involving thermally modified wood. The WPA's statement comes following the report on the Collaborative Reporting for Safer Structures UK...
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