The life of the timber is going to depend on what timber it is, Silver birch
and you will be lucky to get 2 years from it, Oak could give you 10.
Remember that as the bark loosens from the timber it makes a very good
hiding place for a range of pests including Slugs and Snails, Woodlice ...
--
David Hill
Abacus Nurseries
www.abacus-nurseries.co.uk