Collocations for timber - noun

cut, fell, harvest
sell

company, industry, production, trade
harvest
sale, supply

heavy
solid
a solid timber door

rough
decayed, rotten, rotting
seasoned, treated
unseasoned, untreated

length, piece

dress, season, treat

decay, rot

product
merchant, yard
construction, frame, structure, support
beam, building, floor, etc.

heavy
exposed
The house has exposed oak timbers.

roof
oak
ship's