North American Product Classification System (NAPCS) Canada 2017 Version 1.0
- 551 - Wholesale services (except commissions)
- 55116 - Building materials and supplies, at wholesale
- 551161 - Lumber, plywood and millwork, at wholesale
- 5511611 - Hardwood lumber at wholesale
- 5511612 - Softwood lumber at wholesale
- 5511613 - Wood doors and windows, and other millwork, at wholesale
- 5511614 - Flooring products of wood (including laminate flooring) at wholesale
- 5511615 - Other wood products for construction and renovation, at wholesale
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