UC4 Gravel Boards

Are the gravel boards you are buying described as pressure-treated for longevity? This does not mean it is suitable for posts and ground contact. We stock gravel boards that are treated to Class UC4 meaning they are suitable for close ground contact and come with a 30 year desired service life!

UC4 Gravel Boards in Kent

We treat Kiln Dried Radiata Pine on a specific cycle with a higher-than-average chemical concentration to offer a 30-year desired service life BS8417 part 4. This requires full sapwood penetration, not just 6mm penetration as required by incised spruce.  Fixings and splitting in the timber may be greater than 6mm.
We normally hold in treated UC4 Radiata Pine for a 30-year desired service life the following gravel board sizes:
22 x 150   |    30 x 150  |      45 x 145

For specialist advice simply get in touch with our friendly team today 01227 720537 or email enquiries@winghamtimber.com

To find out more about UC4 treatment and to read our FAQs on UC4 click here.

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Is your treated timber fit for purpose?
At Wingham Timber, we pressure treat on-site for Use Class 4. UC4 is for end uses where wood is in contact with or very close to the ground and frequently wet. Our UC4 treated products are suitable for ground contact and we offer a Desired Service Life of 30 Years.
Size Length Treatment Desired Service Life
22 x 100 4.0m UC4 30 years
22 x 150 1.83m UC4 30 years
22 x 150 2.4m UC4 30 years
22 x 150 3.0m UC4 30 years
30 x 150 1.83m UC4 30 years
30 x 150 4.0m UC4 30 years
45 x 145 4.0m UC4 30 years