The Wood Protection Association

5c Flemming Court, Castleford, West Yorkshire

WF10 5HW. United Kingdom

WOOD: designed by nature, protected by innovation

  • LinkedIn - White Circle
  • Twitter - White Circle

Privacy Policy | Corporate Code of Practice


© 2019 The Wood Protection Association

All WPA publications are free to view and download - simply click-on the relevant document image. Please contact us if you have queries about any aspect of wood protection specification, quality assurance or application good practice.

WPA Wood selection Guide 2019-1.jpg

Wood Modification

Exploring fire retardant treated wood, naturally durable wood, preservative treated wood, modified wood, wood-based sheet materials and engineered wood products.

Modified Wood

Modified Wood FAQs and Guidance Notes
WPA MW1 Understanding Modified

Wood modification technologies provide designers, builders and users of wood and wood-based products with another option where enhanced performance, including durability and dimensional stability, is required. 

WPA MW2 Establishing performance of modi

Wood Modification

Although a range of wood properties may be affected by the modification process, the suitability of modified wood for a given end use is based on three main criteria: durability, strength and dimensional stability. 


If you cannot find the answer to your question within any of the listed publications, please get in touch.


We have knowledgable people based in the UK office as well as numerous technical consultant members we can call upon to assist you.

Go to CONTACT US page or give us a call.