NAICS Code 42331 — Lumber, Plywood, Millwork, and Wood Panel Merchant Wholesalers

NAICS Industry in the official 2022 North American Industry Classification System (U.S. Census Bureau). It contains 1 direct sub-code.

Code	42331
Title	Lumber, Plywood, Millwork, and Wood Panel Merchant Wholesalers
Level	NAICS Industry (5-digit)
Edition	NAICS 2022 edition

Official definition (2022 NAICS)

This industry comprises establishments primarily engaged in the merchant wholesale distribution of lumber; plywood; reconstituted wood fiber products; wood fencing; doors and windows and their frames (all materials); wood roofing and siding; and/or other wood or metal millwork.

This national industry shares the official Census description of 423310.

Where 42331 sits in the hierarchy

Level	Code	Title
Sector	42	Wholesale Trade
Subsector	423	Merchant Wholesalers, Durable Goods
Industry Group	4233	Lumber and Other Construction Materials Merchant Wholesalers
NAICS Industry	42331	Lumber, Plywood, Millwork, and Wood Panel Merchant Wholesalers

Codes under 42331

Code	Title
423310	Lumber, Plywood, Millwork, and Wood Panel Merchant Wholesalers

Related NAICS Industry codes

• 42332 — Brick, Stone, and Related Construction Material Merchant Wholesalers
• 42333 — Roofing, Siding, and Insulation Material Merchant Wholesalers
• 42339 — Other Construction Material Merchant Wholesalers

Data: official 2022 NAICS structure, descriptions and Census concordances, U.S. Census Bureau — U.S. government works in the public domain (17 U.S.C. §105). Suggested reference, not an official determination.