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The heartwood of D or VD timber is not usually treated as it is naturally resistant to decay. Occasionally timber may be used for footpath work immediately after felling; for example as bridge beams, or for building revetments or steps on a woodland path where timber is to hand. Treatment with preservative is not possible because of the high moisture content of the timber. The saving on the cost of supply must be balanced against its reduced resistance to decay, compared with treated timber. All content copyright © 1986-2008 BTCV Ltd. Registered charity No. 261009 |
