Classification Information
(Based on 44(d) Priority Application) (Based on Use in Commerce) Wood beams; wood structural beams; joists, not of metal; building timber, structural timber; (Based on 44(d) Priority Application) (Based on Intent to Use) Glue-laminated wood, veneer wood, wood boards, furrings of wood, anti-decay wood, ceiling boards of wood, roofing boards of wood, planks of wood for building, wood blocks, lumber, wood rim board
Nonmetallic Building Materials