19 Engineered wood for construction for studs, trim, siding, posts, poles, rafters, beams, joists, joints, paneling, railings, wainscoting, roofing, framing, countertops, ceiling boards, floor boards, flooring, and window frames; wood building materials for construction namely studs, tracks, trim, siding, posts, poles, rafters, beams, joists, joints, paneling, railings, wainscoting, roofing, framing, countertops, ceiling boards, floor boards, flooring, and window frames