Timber is wood, suitable for building and structural 1 ______.
There are over 4000 2 ______ in common use throughout the world. The best and most commonly used softwoods popular for structural work in many 3 ______ are redwood, whitewood, pine, red cedar, sequoia, beech and some others. As to the hardwoods, the best known ones include beech, 4 ______, blackwood, chestnut, elm, mahogany, maple, myrtle, oak, rosewood, walnut and some others.
purposes
woods
countries
birch