SIC 2426 to NAICS Code Crosswalk
The legacy 1987 SIC code 2426 (Hardwood Dimension and Flooring Mills) maps transitively to modern U.S. Census 2022 NAICS code(s): 321113, 321912, 321918, 337215.
Concordance Concordance Mapping Asset
| Source Code | Source Industry | Target Code | Target Industry | Relation | Concordance Path |
|---|---|---|---|---|---|
| SIC 2426 | Hardwood Dimension and Flooring Mills | NAICS 321113 | Sawmills | One-to-Many | SIC1987:2426 → NAICS1997:321113 → 2002:321113 → 2007:321113 → 2012:321113 → 2017:321113 → 2022:321113 |
| SIC 2426 | Hardwood Dimension and Flooring Mills | NAICS 321912 | Cut Stock, Resawing Lumber, and Planing | One-to-Many | SIC1987:2426 → NAICS1997:321912 → 2002:321912 → 2007:321912 → 2012:321912 → 2017:321912 → 2022:321912 |
| SIC 2426 | Hardwood Dimension and Flooring Mills | NAICS 321918 | Other Millwork (including Flooring) | One-to-Many | SIC1987:2426 → NAICS1997:321918 → 2002:321918 → 2007:321918 → 2012:321918 → 2017:321918 → 2022:321918 |
| SIC 2426 | Hardwood Dimension and Flooring Mills | NAICS 337215 | Showcase, Partition, Shelving, and Locker Manufacturing | One-to-Many | SIC1987:2426 → NAICS1997:337215 → 2002:337215 → 2007:337215 → 2012:337215 → 2017:337215 → 2022:337215 |
Why Concordances Don't Line Up 1:1
The Standard Industrial Classification (SIC) system was established in 1937 and last updated in 1987, organizing businesses by end products. The North American Industry Classification System (NAICS) replaced it in 1997, classifying establishments by production processes. Because of this structural shift, many-to-many relationships are common, requiring chained concordance steps to bridge the historical gap.
Reverse Crosswalk: Going the other way? See the mapping at NAICS 321113 to SIC, NAICS 321912 to SIC, NAICS 321918 to SIC, NAICS 337215 to SIC.
Related Pages & Tools
- SIC Code 2426 Profile — Legacy OSHA definition and associated industrial metadata.
- SIC Major Group 24 Hub — Legacy category group directory.
- Interactive Crosswalk Engine — Convert any SIC or NAICS code dynamically.
Primary Ingestion Source
Data sourced from the U.S. Census Bureau Concordances (1997, 2002, 2007, 2012, 2017, and 2022 editions). Last verified on 2026-06-30.