# NAICS 423390: Other Construction Material Merchant Wholesalers

The SBA size standard for NAICS 423390 is 100 employees (13 CFR 121.201).

| Field | Value |
| --- | --- |
| Code | 423390 |
| Title | Other Construction Material Merchant Wholesalers |
| Level | 6 |
| Parent | 42339 |
| Size standard | 100 employees |
| Footnote | - |

## Description

This industry comprises (1) establishments primarily engaged in the merchant wholesale distribution of manufactured homes (i.e., mobile homes) and/or prefabricated buildings and (2) establishments primarily engaged in the merchant wholesale distribution of construction materials (except lumber, plywood, millwork, wood panels, brick, stone, roofing, siding, electrical and wiring supplies, and insulation materials).

## Sources

- Census NAICS: https://www.census.gov/naics/
- SBA size standards: https://www.sba.gov/document/support-table-size-standards

## API and MCP

- REST: GET https://samgovapi.io/api/v1/naics/423390/size-standard?revenue_usd=...
- MCP tools: naics_lookup, size_standard_check

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