NAICS 327332 Quarterly Industry Report
Concrete Pipe Manufacturing
Comprehensive industry research for valuation professionals, business owners, buyers, and lenders
NAICS Code: 327332Sector: 32Updated: Q1 2026
About This Report
This Fair Market Value industry report for NAICS 327332 draws on data from the U.S. Census Bureau's Annual Survey of Manufactures[6], Bureau of Labor Statistics[7] producer price indices, and SBA size standard tables[8]. Our research team cross-references federal procurement records with industry production data to provide valuation context specific to concrete pipe manufacturing operations. The report is updated quarterly to reflect current market conditions, and each data point is traced to its primary government or institutional source.
Industry Definition & Overview
Concrete Pipe Manufacturing (NAICS 327332) encompasses establishments primarily engaged in producing concrete pipe products for drainage, sewage, culvert, and water conveyance systems. These manufacturers produce reinforced concrete pipe (RCP), prestressed concrete cylinder pipe (PCCP), storm sewer pipe, sanitary sewer pipe, and concrete culvert pipe using various concrete mixing, forming, and curing processes.
The industry serves municipal water and wastewater infrastructure, highway drainage systems, stormwater management projects, and irrigation networks. Production facilities typically operate large-diameter pipe casting equipment, wire winding machines for prestressed products, and steam or autoclave curing chambers. Most output moves through direct sales to contractors and government agencies rather than retail distribution. Regional proximity to end-use projects matters because concrete pipe is heavy and expensive to transport over long distances. Plant sizes range from small operations with a single production line to large facilities running multiple pipe diameters simultaneously across several casting bays.
According to the U.S. Census Bureau[4], this classification covers only concrete pipe; establishments making concrete block, brick, or other concrete products fall under separate NAICS codes. Producer price data tracked by the Federal Reserve Bank of St. Louis[5] shows price trends for concrete pipe have followed input cost movements in cement, aggregates, and steel reinforcement.
What's Included in This Industry
- Reinforced concrete pipe (RCP) manufacturing
- Prestressed concrete cylinder pipe (PCCP) production
- Storm sewer concrete pipe fabrication
- Sanitary sewer concrete pipe casting
- Concrete culvert pipe manufacturing
- Jacking pipe and microtunneling pipe production
- Elliptical and arch concrete pipe forming
- Concrete manhole section manufacturing
- Box culvert and three-sided structure fabrication
- Concrete pressure pipe production
NAICS Classification Hierarchy
| Level | Description | Code |
|---|---|---|
| Subsector | Nonmetallic Mineral Product Manufacturing | 327 |
| Industry Group | Cement and Concrete Product Manufacturing | 3273 |
| NAICS Industry | Concrete Pipe, Brick, and Block Manufacturing | 32733 |
| National Industry | Concrete Pipe Manufacturing | 327332 |
Related NAICS Codes
| Code | Description | Relationship |
|---|---|---|
| 327331 | Concrete Block and Brick Manufacturing | Covers concrete block and brick manufacturing, which uses similar raw materials but produces different product forms than pipe |
| 327390 | Other Concrete Product Manufacturing | Includes other concrete products not classified as pipe, block, or brick, such as precast structural elements and burial vaults |
| 327320 | Ready-Mix Concrete Manufacturing | Ready-mix concrete manufacturing provides the primary raw material input that concrete pipe producers either purchase or batch on-site |
| 327310 | Cement Manufacturing | Cement manufacturing supplies the primary binding agent essential to all concrete pipe production processes and determines a key input cost |
| 237110 | Water and Sewer Line and Related Structures Construction | Water and sewer line construction contractors are the primary installers and end-use customers for concrete pipe products |
| 237310 | Highway, Street, and Bridge Construction | Highway and street construction projects consume concrete culvert pipe and storm drainage products manufactured by this industry |
Geographic Concentration
Top states by share of national establishments.
| # | State | % Est. | Total Est. |
|---|---|---|---|
| 1 | Texas | 12.8% | 16 |
| 2 | North Carolina | 7.2% | 9 |
| 3 | Georgia | 5.6% | 7 |
| 4 | California | 5.6% | 7 |
| 5 | Michigan | 5.6% | 7 |
| 6 | Virginia | 4.8% | 6 |
| 7 | Indiana | 4.8% | 6 |
| 8 | Illinois | 4.8% | 6 |
| 9 | Ohio | 4.8% | 6 |
| 10 | Alabama | 4.0% | 5 |
% Of Establishments
0%
13%
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 327332?
Businesses under NAICS 327332 manufacture concrete pipe products including reinforced concrete pipe, prestressed concrete cylinder pipe, storm sewer pipe, sanitary sewer pipe, and culvert pipe. These are typically manufacturing plants with casting yards, curing facilities, and heavy material handling equipment. According to the U.S. Census Bureau[4], this code covers only concrete pipe production, not other concrete products.
How is NAICS 327332 structured within the classification system?
NAICS 327332 sits within Industry Group 32733 (Concrete Pipe, Brick, and Block Manufacturing), Subsector 327 (Nonmetallic Mineral Product Manufacturing), and Sector 31-33 (Manufacturing). It is one of two codes under 32733, alongside 327331 for concrete block and brick. The classification distinguishes pipe from other concrete products based on the tubular form and infrastructure end use.
What is the SBA size standard for NAICS 327332?
The SBA[8] sets the size standard for Concrete Pipe Manufacturing at 750 employees. Firms with fewer than 750 employees qualify as small businesses for purposes of federal contracting set-asides, SBA-guaranteed loans, and other small business assistance programs.
What NAICS codes are most closely related to 327332?
The closest related code is 327331, which covers concrete block and brick manufacturing using similar materials but different product forms. NAICS 327390 captures other concrete products such as precast panels and burial vaults. Per the Census Bureau's NAICS structure[12], code 327320 for ready-mix concrete is also closely linked as a key material supplier.
What industries have the strongest business ties to concrete pipe manufacturing?
Water and sewer line construction (NAICS 237110) and highway construction (NAICS 237310) are the largest customer segments. Construction sand and gravel mining (212321) and iron and steel mills (331110) supply critical raw materials. Ready-mix concrete producers (327320) and cement manufacturers (327310) provide the primary material inputs.
What specific activities are included in NAICS 327332?
This code covers manufacturing reinforced concrete pipe, prestressed concrete cylinder pipe, storm sewer pipe, sanitary sewer pipe, culvert pipe, jacking pipe, elliptical pipe, arch pipe, box culverts, and concrete manhole sections. All products share a common manufacturing process involving concrete batching, form placement, reinforcement, casting, and curing. Per NAICS reference guides, the defining characteristic is the tubular or enclosed cross-section form.
Can concrete pipe manufacturers access SBA loans?
Yes. Concrete pipe manufacturers meeting the 750-employee size standard can access SBA loan programs[9] including 7(a) loans for working capital and equipment, 504 loans for real estate and major equipment purchases, and microloans for smaller capital needs. These programs help manufacturers finance casting equipment, curing systems, and plant facility improvements.
Where is concrete pipe manufacturing concentrated in the United States?
Production facilities cluster near major metropolitan areas and regions with active infrastructure construction. States with large populations and ongoing water infrastructure investment, such as Texas, California, Florida, Ohio, and Pennsylvania, support more concrete pipe plants. Because finished pipe is heavy relative to its value, manufacturers locate within reasonable trucking distance of their end markets rather than centralizing production.
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. Census Bureau census.gov
- [5]Federal Reserve Bank of St. Louis fred.stlouisfed.org
- [6]U.S. Census Bureau's Annual Survey of Manufactures census.gov
- [7]Bureau of Labor Statistics bls.gov
- [8]SBA size standard tables sba.gov
- [9]SBA's lending programs sba.gov
- [10]SBA 7(a) loans sba.gov
- [11]504 loans sba.gov
- [12]Census Bureau's NAICS structure census.gov
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