Section 09 Wood and articles of wood; wood charcoal; cork and articles of cork; manufactures of straw, of esparto or of other plaiting materials; basketware and wickerwork 44 Wood and articles of wood; wood charcoal 44 18 Builders' joinery and carpentry of wood, including cellular wood panels, assembled flooring panels, shingles and shakes 44 18 82 -- Cross-laminated timber (CLT or X-lam) Commodity Code Description 44 18 82 00 -- Cross-laminated timber (CLT or X-lam)