Redwood Sleepers These are untreated reclaimed sleepers, made of seasoned redwood (almost certainly Douglas fir) and are the best of both worlds in sleeper terms: they look old and are full of character, but are totally safe for use indoors, or in furniture or in children's play areas.   These will be durable for many years yet; the sap of Douglas Fir contains chemicals that act as natural preservatives.   comes in random lengths up to 8ft - 8ft 4" 10” wide (250mm) 5” thick (125mm) Copyright © 2011 railwaysleepers.co.uk All Rights Reserved Designed and Hosted by AH Marketing