NAICS 321219

Overview

The North American Industry Classification System (NAICS) is the framework federal statistical agencies use to organize establishments for economic data collection and publication. Developed under the Office of Management and Budget with Canada and Mexico, NAICS replaced the SIC in 1997; the system is updated on a five-year cycle, with the current vintage being 2022. ¹
U.S. NAICS 321219 — Reconstituted Wood Product Manufacturing — covers establishments primarily engaged in manufacturing reconstituted wood sheets and boards, including products such as medium density fiberboard (MDF), oriented strandboard (OSB), particleboard, and waferboard. Hardwood and softwood plywood are classified separately. ²

See also on G2X:

• G2X — NAICS 321219 overview
• G2X — NAICS 321211 Hardwood Veneer and Plywood Manufacturing
• G2X — NAICS 321212 Softwood Veneer and Plywood Manufacturing

What this NAICS covers

• Manufacturing of reconstituted wood sheets and boards. ²
• Medium density fiberboard (MDF) manufacturing. ²
• Oriented strandboard (OSB) manufacturing. ²
• Particleboard manufacturing. ²
• Waferboard manufacturing. ²
• Insulation board and other reconstituted wood fiberboard manufacturing. ²
• Production of reconstituted wood panels faced with nonwood materials (e.g., overlays), when part of the same reconstituted wood product manufacturing process. ²

Related NAICS and PSC codes

Type	Code	Descriptor
NAICS	321211	Hardwood Veneer and Plywood Manufacturing. 2
NAICS	321212	Softwood Veneer and Plywood Manufacturing. 2
PSC	5510	Lumber and Related Basic Wood Materials (includes dimensional lumber, wood flooring, poles, ties, siding; excludes millwork and plywood). 3
PSC	5530	Plywood and Veneer (includes plywood and veneered panels). 3

Industry boundaries and exclusions

• Hardwood and softwood plywood manufacturing are classified in NAICS 321211 and 321212, not in 321219. ²
• Paperboard manufacturing is classified in NAICS 322130; pulp manufacturing without paper is in 322110. Reconstituted wood fiberboard (e.g., insulation board) falls in 321219. ²
• Sawmill production of solid wood structural members (dimension lumber and timber) is classified in NAICS 32111, not in 321219. ²

Frequently asked questions

• What products are included under NAICS 321219?
  Establishments make reconstituted wood sheets and boards such as MDF, OSB, particleboard, waferboard, and similar fiberboards. The industry focuses on engineered panel products rather than solid-wood sawn products. ²

• How does NAICS 321219 differ from plywood industries 321211 and 321212?
  Plywood (hardwood or softwood) is classified in NAICS 321211/321212, while reconstituted wood panels like MDF, OSB, and particleboard are classified in 321219. The NAICS definitions explicitly separate plywood from reconstituted wood products. ²

• Are engineered structural members such as laminated veneer lumber (LVL) or wood I-joists part of 321219?
  No. Engineered structural members (e.g., LVL, I-joists) are classified in NAICS 321213 (and trusses in 321214). NAICS 321219 covers reconstituted sheets and boards, not structural members. ²

• Do insulation boards and other reconstituted wood fiberboards fall within 321219?
  Yes. Paperboard mills explicitly exclude insulation board and other reconstituted wood fiberboards, directing them to NAICS 321219. ²

• What is the current NAICS vintage and how is it used in federal statistics?
  The 2022 NAICS vintage is current. Census programs began disseminating detailed 2022 NAICS statistics with the 2022 Economic Census, and remaining programs plan to transition by the end of calendar year 2027. ⁴

Useful resources

• U.S. Census Bureau — NAICS 321219 definition and cross-references (Sector 31–33, Manufacturing). ²
• U.S. Census Bureau — Implementation of the 2022 NAICS (timeline and background). ⁴
• Acquisition.gov — Product and Service Code (PSC) Manual (descriptions for 5510 and 5530). ³

References

1. U.S. Census Bureau — NAICS (About/Background). https://www.census.gov/naics/
2. U.S. Census Bureau — 2022 NAICS Search: 321219 Reconstituted Wood Product Manufacturing. https://www.census.gov/naics/?input=321219&year=2022
3. U.S. General Services Administration — Product and Service Code (PSC) Manual. https://www.acquisition.gov/psc-manual
4. U.S. Census Bureau — The Census Bureau’s Implementation of the 2022 NAICS. https://www.census.gov/library/reference/code-lists/naics/2022/implementation-timeline.html