NAICS 327420 Quarterly Industry Report
Gypsum Product Manufacturing
Comprehensive industry research for valuation professionals, business owners, buyers, and lenders
NAICS Code: 327420Sector: 32Updated: Q1 2026
About This Report
This Fair Market Value industry report for NAICS 327420 draws on data from the U.S. Geological Survey Mineral Commodity Summaries[4], Census Bureau economic surveys[6], and SBA size standard tables[7]. Our research team tracks wallboard production volumes, pricing trends, and capacity use to provide valuation context specific to gypsum product operations. Additional data is drawn from Bureau of Labor Statistics[8].. The report is updated quarterly, and each data point traces to its primary government or institutional source.
Industry Definition & Overview
Gypsum Product Manufacturing (NAICS 327420) encompasses establishments primarily engaged in manufacturing gypsum products such as wallboard (drywall), plaster, plasterboard, molding, and ornamental plaster work. These manufacturers may mine, quarry, or purchase gypsum as a raw material, then calcine it in kettles or kilns to produce stucco (calcium sulfate hemihydrate), which forms the core of wallboard and plaster products.
Wallboard production dominates this industry by volume and revenue. According to the U.S. Geological Survey[4], U.S. wallboard production capacity stood at about 34 billion square feet per year as of early 2024, with actual sales estimated at 28 billion square feet. A total of 47 companies produced or processed gypsum at 45 mines across 15 states. Synthetic gypsum from flue gas desulfurization (FGD) at coal-fired power plants supplements mined gypsum as a feedstock.
The industry is concentrated among a small number of large producers that operate multiple plants nationwide. These firms benefit from vertical integration, controlling gypsum mines, wallboard plants, and distribution networks. Smaller producers focus on specialty plaster products, ornamental work, or regional wallboard supply. Construction activity, particularly residential building, drives demand because wallboard is installed in virtually every new home and commercial interior. Per the USGS Gypsum Statistics[5] program, domestic apparent consumption totaled an estimated 44 million metric tons in 2024.
What's Included in This Industry
- Gypsum wallboard (drywall/sheetrock) manufacturing
- Gypsum plaster and plasterboard production
- Ornamental plaster work and molding manufacturing
- Gypsum lath and tile production
- Gypsum sheathing board manufacturing
- Dental plaster and industrial plaster production
- Gypsum calcining and stucco processing
- Glass mat gypsum panel manufacturing
- Gypsum ceiling tile and panel production
- Fire-rated gypsum board manufacturing
NAICS Classification Hierarchy
| Level | Description | Code |
|---|---|---|
| Subsector | Nonmetallic Mineral Product Manufacturing | 327 |
| Industry Group | Lime and Gypsum Product Manufacturing | 3274 |
| NAICS Industry | Gypsum Product Manufacturing | 32742 |
| National Industry | Gypsum Product Manufacturing | 327420 |
Related NAICS Codes
| Code | Description | Relationship |
|---|---|---|
| 327410 | Lime Manufacturing | Lime manufacturing shares the same industry group within nonmetallic mineral products and processes calcareous minerals through similar high-temperature calcination equipment |
| 327310 | Cement Manufacturing | Cement manufacturing uses gypsum as a set-retarding additive and operates comparable mining-to-manufacturing supply chain structures |
| 327110 | Pottery, Ceramics, and Plumbing Fixture Manufacturing | Pottery and ceramics manufacturing falls within the same nonmetallic mineral product subsector and serves overlapping construction finish markets |
| 212312 | Crushed and Broken Limestone Mining and Quarrying | Crushed and broken limestone mining supplies calcium carbonate used alongside gypsum in various construction material formulations |
| 212319 | Other Crushed and Broken Stone Mining and Quarrying | Other crushed and broken stone mining includes gypsum rock quarrying operations that supply raw material to gypsum product manufacturers |
Geographic Concentration
Top states by share of national establishments.
| # | State | % Est. | Total Est. |
|---|---|---|---|
| 1 | California | 9.9% | 16 |
| 2 | Texas | 9.3% | 15 |
| 3 | Florida | 7.5% | 12 |
| 4 | Illinois | 6.2% | 10 |
| 5 | New Jersey | 5.6% | 9 |
| 6 | New York | 5.6% | 9 |
| 7 | Nevada | 5.0% | 8 |
| 8 | Pennsylvania | 4.3% | 7 |
| 9 | Georgia | 4.3% | 7 |
| 10 | Washington | 4.3% | 7 |
% Of Establishments
0%
10%
Source: County Business Patterns, U.S. Census Bureau[3]
Frequently Asked Questions
Common questions about this industry.
What types of businesses are classified under NAICS 327420?
NAICS 327420 includes manufacturers of gypsum wallboard (drywall), plaster, plasterboard, ornamental moldings, ceiling tiles, gypsum sheathing, and specialty plaster products. These range from large integrated producers with captive gypsum mines and nationwide plant networks to smaller firms making specialty or regional products. Per the USGS[4], 47 companies produced or processed gypsum in the United States as of recent surveys.
How is NAICS 327420 structured within the classification system?
NAICS 327420 belongs to Industry Group 3274 (Lime and Gypsum Product Manufacturing), Subsector 327 (Nonmetallic Mineral Product Manufacturing), and Sector 31-33 (Manufacturing). It shares Industry Group 3274 with NAICS 327410 (Lime Manufacturing). The code covers all gypsum-based product manufacturing regardless of end-use application.
What is the SBA size standard for NAICS 327420?
The SBA[7] sets the size standard for Gypsum Product Manufacturing at 1,500 employees. This is one of the higher thresholds in the manufacturing sector, reflecting the large-scale capital requirements of wallboard production lines. Firms with fewer than 1,500 employees qualify as small businesses for federal contracting and SBA loan programs.
What NAICS codes are most closely related to 327420?
The closest code is 327410 (lime manufacturing), which shares the same industry group and processes nonmetallic minerals through calcination. Code 327310 (cement manufacturing) uses gypsum as an additive. Drywall contractors (238310) are the primary customer segment. Per Census Bureau NAICS classifications[12], gypsum mining itself falls under 212319 when operated as a separate establishment.
What industries have the strongest business ties to gypsum product manufacturing?
Drywall and insulation contractors (238310) are the largest direct customers. Commercial construction (236220) and residential construction drive end-market demand. Roofing and siding wholesalers (423330) handle distribution. Crushed stone mining (212319) supplies raw gypsum, and sheet metal work manufacturing (332322) produces the metal framing that pairs with wallboard in building interiors.
What specific activities are included in NAICS 327420?
Activities include manufacturing gypsum wallboard, plaster, plasterboard, ornamental moldings, gypsum lath, sheathing board, ceiling tiles, dental plaster, industrial plaster, and fire-rated gypsum panels. The code also covers gypsum calcining operations where raw gypsum is heated to produce stucco. According to NAICS reference materials, establishments may mine their own gypsum as part of integrated operations.
Can gypsum product manufacturers access SBA loans?
Yes. Gypsum product manufacturers with fewer than 1,500 employees qualify for SBA loan programs[9] including 7(a) loans for working capital and equipment, 504 loans for real estate and major plant investments, and disaster loans when applicable. These programs support kiln upgrades, production line expansions, and environmental compliance improvements.
Where is gypsum product manufacturing concentrated in the United States?
Wallboard plants locate near gypsum deposits and major construction markets. States with active gypsum mining include Iowa, Nevada, Oklahoma, Texas, and Indiana. Plants also cluster near coal-fired power plants that produce synthetic gypsum from flue gas desulfurization. The USGS[5] tracks production across 15 states with active gypsum mining operations.
Sources & References
Government datasets and editorial sources used in this report.
- [1]U.S. Bureau of Labor Statistics, Quarterly Census of Employment and Wages bls.gov
- [2]U.S. Census Bureau, Economic Census census.gov
- [3]U.S. Census Bureau, County Business Patterns census.gov
- [4]U.S. Geological Survey pubs.usgs.gov
- [5]USGS Gypsum Statistics usgs.gov
- [6]Census Bureau economic surveys census.gov
- [7]SBA size standard tables sba.gov
- [8]Bureau of Labor Statistics bls.gov
- [9]SBA lending programs sba.gov
- [10]SBA 7(a) loans sba.gov
- [11]504 loans sba.gov
- [12]Census Bureau NAICS classifications census.gov
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