NAICS 332420 Quarterly Industry Report
Metal Tank (Heavy Gauge) Manufacturing
Comprehensive industry research for valuation professionals, business owners, buyers, and lenders
NAICS Code: 332420Sector: 33Updated: Q1 2026
About This Report
This report on Metal Tank (Heavy Gauge) Manufacturing (NAICS 332420) draws on data from the U.S. Census Bureau[5], the SBA Size Standards[7], and the Bureau of Labor Statistics[6]. Published by Fair Market Value and updated quarterly, this profile serves business owners, buyers, CPAs, lenders, business brokers, and valuation professionals. The editorial analysis reflects the independent assessment of FairMarketValue.com's research team, with all quantitative claims sourced to publicly verifiable databases.
Industry Snapshot
Key metrics for the metal tank (heavy gauge) manufacturing industry.
Industry Definition & Overview
Metal Tank (Heavy Gauge) Manufacturing (NAICS 332420) encompasses establishments primarily engaged in cutting, forming, and joining heavy gauge metal to manufacture tanks, vessels, and other specialized containers for industrial applications U.S. Census Bureau[5]. This sector supplies products to energy companies, chemical processors, agricultural operations, and manufacturing facilities requiring strong storage and pressure vessel solutions. Oil storage tanks, petroleum cylinders, cryogenic tanks, and fermentation vessels are typical products. Custom engineering is standard practice.
Heavy gauge metal tank manufacturers use steel and other durable metals to produce containers capable of withstanding intense operational pressures and harsh environmental conditions. Demand tracks infrastructure development and industrial capital spending cycles. Employment spans hundreds of specialized manufacturing facilities nationwide, and market activity remains strong despite periodic supply chain pressures affecting raw material availability and pricing.
Per Bureau of Labor Statistics data[6], the broader fabricated metals sector ranks among the largest U.S. manufacturing industries by employment. Tank manufacturers maintain long-term contracts while managing material cost fluctuations through indexed pricing and strategic supplier relationships. Custom engineering and design capabilities differentiate firms competing for complex industrial tank projects requiring specialized pressure ratings, material specifications, and regulatory compliance certifications. Geographic distribution follows industrial and energy sector concentration patterns across the country.
What's Included in This Industry
- Cutting, forming, and joining heavy gauge metal to fabricate tank structures
- Manufacturing pressure vessels for industrial applications
- Producing storage tanks for petroleum and related products
- Fabricating acetylene and liquefied petroleum gas cylinders
- Creating cryogenic tanks for low-temperature storage
- Manufacturing farm storage tanks and agricultural containment vessels
- Producing fermentation tanks and chemical processing vessels
- Fabricating septic tanks and wastewater vessels
- Providing installation and assembly services for manufactured tank systems
- Manufacturing vats and industrial processing containers
NAICS Classification Hierarchy
| Level | Description | Code |
|---|---|---|
| Subsector | Fabricated Metal Product Manufacturing | 332 |
| Industry Group | Boiler, Tank, and Shipping Container Manufacturing | 3324 |
| NAICS Industry | Metal Tank (Heavy Gauge) Manufacturing | 33242 |
| National Industry | Metal Tank (Heavy Gauge) Manufacturing | 332420 |
Related NAICS Codes
| Code | Description | Relationship |
|---|---|---|
| 332410 | Power Boiler and Heat Exchanger Manufacturing | Power Boiler and Heat Exchanger Manufacturing produces pressure vessels and heating equipment using similar heavy gauge metal fabrication techniques and serves overlapping industrial customer bases in energy generation and thermal transfer. |
| 332431 | Metal Can Manufacturing | Metal Can Manufacturing shares metalworking and fabrication processes but focuses on light gauge materials for consumer packaging, shipping containers, and lighter-duty storage applications in food and beverage industries. |
| 332999 | All Other Miscellaneous Fabricated Metal Product Manufacturing | All Other Miscellaneous Fabricated Metal Product Manufacturing includes specialized fabrication shops that may produce custom tanks alongside other metal products serving customers requiring integrated solutions. |
| 332313 | Plate Work Manufacturing | Plate Work Manufacturing involves cutting, punching, and bending metal plate into fabricated products, sharing core fabrication techniques with heavy gauge tank manufacturers but producing different end components. |
| 334512 | Automatic Environmental Control Manufacturing for Residential, Commercial, and Appliance Use | Measuring and Control Instruments Manufacturing produces pressure gauges, level indicators, and monitoring equipment used in metal tank systems to support safe industrial tank operations. |
| 811310 | Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance | Commercial and Industrial Machinery Repair and Maintenance provides ongoing maintenance and refurbishment services for metal tanks after installation, supporting equipment longevity across customer industries. |
Geographic Concentration
Top states by share of national establishments.
| # | State | % Est. | Total Est. |
|---|---|---|---|
| 1 | Texas | 18.4% | 128 |
| 2 | California | 6.5% | 45 |
| 3 | Ohio | 5.7% | 40 |
| 4 | Pennsylvania | 5.0% | 35 |
| 5 | Wisconsin | 4.3% | 30 |
| 6 | Oklahoma | 4.0% | 28 |
| 7 | Missouri | 3.2% | 22 |
| 8 | North Carolina | 3.2% | 22 |
| 9 | Minnesota | 2.9% | 20 |
| 10 | New York | 2.9% | 20 |
% Of Establishments
0%
18%
Source: County Business Patterns, U.S. Census Bureau[3]
SBA Lending Summary
24
Total SBA Loans
$4.1M
Total Loan Volume
$172K
Average Loan Size
8 yrs
Average Loan Term
11.83%
Average Interest Rate
216
Jobs Supported
Source: SBA 7(a) Program Data, U.S. Small Business Administration — FY 2025[4]
Key Insight: The SBA sets the size standard for NAICS 332420 at 750 employees SBA Table of Size Standards[7], making businesses below this threshold eligible for small business designations in federal contracting programs. Small businesses in this sector may qualify for SBA 7(a) loans[8] for equipment and working capital and 504 loans[9] for fixed asset acquisition. Federal procurement opportunities exist through small business set-aside contracts.
Top SBA Lenders
| # | Lender | Loans | Volume | Avg Loan |
|---|---|---|---|---|
| 1 | FirstBank Puerto Rico | 8 | $3.2M | $400K |
| 2 | JPMorgan Chase Bank, National Association | 8 | $720K | $90K |
| 3 | Zions Bank, A Division of | 8 | $200K | $25K |
Frequently Asked Questions
Common questions about this industry.
What types of businesses are classified under NAICS 332420?
NAICS 332420 includes metal fabrication establishments specializing in cutting, forming, and joining heavy gauge metal materials to manufacture tanks and vessels Census Bureau NAICS 332420[5]. Typical businesses include contract manufacturers producing custom tanks, industrial tank specialists serving petroleum and chemical industries, and heavy gauge fabrication shops focusing on pressure vessel production.
How is the metal tank manufacturing industry structured?
The industry operates within the Boiler, Tank, and Shipping Container Manufacturing group (NAICS 3324). Companies range from small regional fabricators to larger manufacturers serving multiple industries. Per Bureau of Labor Statistics[6], the broader fabricated metals sector maintains substantial employment. Customer concentration in energy, chemical processing, and agriculture shapes the competitive environment.
What is the SBA size standard for NAICS 332420?
The SBA establishes the size standard at 750 employees for NAICS 332420 SBA Table of Size Standards[7]. Businesses with 750 or fewer employees qualify as small businesses for federal contracting and SBA financing programs.
Which NAICS codes are most closely related to heavy gauge tank manufacturing?
Related codes include 332410 (Power Boiler and Heat Exchanger Manufacturing), which produces similar pressure vessels; 332431 (Metal Can Manufacturing), which covers light gauge container production; and 332313 (Plate Work Manufacturing), which shares core fabrication techniques Census Bureau[10].
What industries rely on products from NAICS 332420 manufacturers?
Major customer industries include petroleum refining (NAICS 324110), chemical manufacturing, agricultural chemical production (NAICS 325320), breweries and food processing (NAICS 312120), wastewater treatment, and power generation Bureau of Labor Statistics[6]. These sectors drive demand for specialized tank designs and pressure-rated vessel solutions.
What activities and products are included in NAICS 332420?
This classification covers manufacturing heavy gauge metal storage tanks, pressure vessels, acetylene cylinders, LPG cylinders, cryogenic tanks, fermentation vessels, septic tanks, agricultural storage tanks, water tanks, and industrial processing vats Census Bureau[5]. Installation services and custom design engineering are also included.
Are businesses in NAICS 332420 eligible for SBA loans?
Where is heavy gauge metal tank manufacturing geographically concentrated?
Manufacturing concentrations reflect proximity to energy sector operations, chemical manufacturing clusters, agricultural regions, and metropolitan industrial demand. Per Bureau of Labor Statistics[6], fabricated metals employment clusters in the Midwest, Gulf Coast, and major industrial corridors. Raw material access and transportation infrastructure drive location decisions.
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. Small Business Administration, SBA 7(a) Loan Program Data data.sba.gov
- [5]U.S. Census Bureau census.gov
- [6]Bureau of Labor Statistics data bls.gov
- [7]SBA Size Standards sba.gov
- [8]SBA 7(a) loans sba.gov
- [9]504 loans sba.gov
- [10]Census Bureau census.gov
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