540	LUMBER AND RELATED PRODUCTS
54005  *	Asbestos Sheets, All Types (Except Insulation and Roofing)
54008  *	Asbestos Siding, Flat
54009  *	Blocking Wood
54010  *	Bridge Timbers and Railroad Ties, Treated
54014  *	Lumber, Cedar
54017  *	Lumber, Cypress
54020  *	Lumber, Fir
54023  *	Lumber, Hardwood, All Kinds
54026  *	Lumber, Parana Pine
54032  *	Lumber, Redwood
54034  *	Lumber, Softwood (SPF)
54035  *	Lumber, Southern Pine, Laminated Structural Type
54041  *	Lumber, Treated: Creosote, Penta, Wolmanized, etc.
54042  *	Lumber, Treated: Fire Retardant
54043  *	Lumber, Walnut
54044  *	Lumber, White Pine
54047  *	Lumber, Yellow Pine
54050  *	Particleboard
54053  *	Pressed Paper Sheets
54056  *	Pressed Wood Sheets: Masonite, etc.
54057  *	Pilings, Treated
54059  *	Plywood, Fir
54062  *	Plywood, All Kinds (Except Decorative Panels, Fir and Plastic Faced)
54065  *	Plywood Panels, Decorative, Prefinished
54068  *	Plywood Panels, Plastic Faced (For Highway Signs, etc.)
54070  *	Poles, Treated
54071  *	Posts, Cedar
54073  *	Posts, Treated
54075  *	Railings
54077  *	Recycled Lumber
54078  *	Sawdust and Shavings
54081  *	Sheetrock and Accessories: Cement, Corners, Floating Compound, etc. (See Class 832 for Tape)
54084  *	Shakes and Shims, Wood
54087  *	Siding, Prefinished Particleboard
54088  *	Siding, Vinyl Clad
54090  *	Stakes: Engineers', Agricultural, etc.
54094  *	Underlayment
54095  *	Veneers, All Kinds