# NAICS 423310: Lumber, Plywood, Millwork, and Wood Panel Merchant Wholesalers

Breadcrumb: [NAICS codes](https://bidrover.com/naics) › [423310 Lumber, Plywood, Millwork, and Wood Panel Merchant Wholesalers](https://bidrover.com/naics/423310)

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.

- NAICS code: 423310
- Title: Lumber, Plywood, Millwork, and Wood Panel Merchant Wholesalers
- Sector: 42 Wholesale Trade
- Subsector: 423 Merchant Wholesalers, Durable Goods
- Industry group: 4233 Lumber and Other Construction Materials Merchant Wholesalers
- SBA size standard: 150 employees
- Open bids on BidRover: 0

## Open bids (0)

No open bids cite this code right now.

## Frequently asked questions

### What is NAICS code 423310?

NAICS 423310 is "Lumber, Plywood, Millwork, and Wood Panel Merchant Wholesalers" in the 2022 North American Industry Classification System, in sector 42 (Wholesale Trade). 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.

### What is the SBA size standard for NAICS 423310?

A business is small under NAICS 423310 at or below 150 employees, including affiliates (13 CFR 121.201). Confirm the standard named in each solicitation.

### How many government bids are open under NAICS 423310?

No open bid in BidRover cites NAICS 423310 right now. Many state and local notices do not list a NAICS code, so a keyword alert for this work catches more of them.

### How do I get alerts for NAICS 423310 bids?

Save an alert on this page. A free account gets new matching bids by weekly email; the Team plan ($19/mo) sends daily alerts with match scores, the buyer, source link and documents.

## Related NAICS codes

- [423330 Roofing, Siding, and Insulation Material Merchant Wholesalers](https://bidrover.com/naics/423330)
- [423990 Other Miscellaneous Durable Goods Merchant Wholesalers](https://bidrover.com/naics/423990)
- [423320 Brick, Stone, and Related Construction Material Merchant Wholesalers](https://bidrover.com/naics/423320)
- [423390 Other Construction Material Merchant Wholesalers](https://bidrover.com/naics/423390)

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Code titles and definitions: U.S. Census Bureau, North American Industry Classification System (NAICS), 2022 (https://www.census.gov/naics/). Size standards: U.S. Small Business Administration, Small Business Size Standards, 13 CFR 121.201, eCFR text current as of 2026-10-21 (https://www.ecfr.gov/current/title-13/section-121.201).

BidRover lists bids from official public sources. It is not an issuing authority; confirm the NAICS code and size standard named in each solicitation.