TOP SECRET // INTERNAL USE ONLY Comprehensive Interactive Guide to NAICS Codes for Construction: Focus on Concrete Industry
Volume Concrete Team – Declassified for Internal Training Purposes Only! This redacted document provides an in-depth, interactive guide to NAICS codes relevant to our concrete supply and construction services. Use it to optimize lead generation, SAM.gov registrations, and bidding strategies. Password-protected on WordPress for team access only. Updated January 2026 based on latest federal guidelines.
Introduction to NAICS Codes
NAICS (North American Industry Classification System) codes classify businesses for statistical and contracting purposes. Developed in 1997 by the US, Mexico, and Canada, they replaced the SIC system. Sector 23 – Construction includes over 1.5 million businesses (2022 data). For Volume Concrete, focus on codes for pouring, foundations, paving, and related trades. These codes are essential for government contracts, size standards, and market analysis.
Key Benefits: Register on SAM.gov, filter bids on OregonBuys, qualify for small business set-asides (e.g., revenue under $19M for specialty trades).
How to Use NAICS Codes in Bidding (Especially in Oregon & Portland)
In Oregon, add NAICS to your OregonBuys profile for targeted alerts. ODOT uses them for highway projects. Federally, SAM.gov requires NAICS for registration and bid searches. Cross-reference with PSC (Product Service Codes) for detailed services.
- OregonBuys Steps: Register with Tax ID, select NAICS (e.g., 238110), enable daily emails.
- Federal Tips: Multiple NAICS allowed; primary determines size. Appeal wrong NAICS via SBA.
- Volume Concrete Tip: Use 238110 as primary for poured concrete; add 237310 for highway work.
Integrating NAICS with SAM.gov: A Declassified Guide for Contractors
SAM.gov is the federal hub for contractor registration. NAICS codes are required in entity registration to classify your business, determine size standards, and match opportunities. Without them, you can’t bid on federal contracts. For construction, select codes matching your services to access set-asides.
Steps to Add/Update NAICS in SAM.gov
- Log in to SAM.gov with your account (register if new via entity-information page).
- Navigate to ‘Entity Registration’ > ‘Core Data’ section.
- Input NAICS codes (lookup at census.gov/naics); add multiple if applicable.
- Select primary NAICS for size determination (e.g., $19M revenue limit for 238110).
- Provide size metrics: annual receipts, employees (worldwide and by location).
- Submit and validate; CAGE code assigned automatically.
Importance: Agencies use NAICS to set aside contracts (e.g., small business). Wrong code? Challenge via SBA OHA appeals. For concrete contractors, ensure codes align with PSC for detailed bids.
Tips for Construction Contractors: Include socio-economic categories (e.g., veteran-owned) for more opportunities. Update annually or when services change. Use saved searches in SAM for NAICS-filtered alerts.
Related Codes: Product Service Codes (PSC) for Federal Contracts
PSC complement NAICS by classifying specific products/services. Lookup at acquisition.gov/psc-manual. For concrete: Y1JZ (Construction of Miscellaneous Buildings), Z2JZ (Repair/Alteration of Miscellaneous Buildings). Add to SAM for precise bid matching.
Interactive NAICS Code Search
| NAICS Code | Title | Detailed Description | Concrete Relevance (for Volume Concrete) | Size Standard (Revenue/Employees) |
|---|---|---|---|---|
| 236115 | New Single-Family Housing Construction (except For-Sale Builders) | General contractors building single-family homes; includes site prep, foundations. | Medium – Concrete foundations common. | $45M |
| 236116 | New Multifamily Housing Construction (except For-Sale Builders) | Multifamily buildings like apartments; structural concrete work. | High – Extensive concrete use in slabs, walls. | $45M |
| 236117 | New Housing For-Sale Builders | Builders constructing and selling new homes. | Low – Potential foundation work. | $45M |
| 236118 | Residential Remodelers | Renovations, additions to homes; concrete repairs/additions. | Medium – Driveways, patios, repairs. | $45M |
| 236210 | Industrial Building Construction | Factories, warehouses; heavy concrete slabs. | Very High – Industrial floors, foundations. | $45M |
| 236220 | Commercial and Institutional Building Construction | Offices, schools, hospitals; full building concrete structures. | Very High – Comprehensive concrete needs. | $45M |
| 237110 | Water and Sewer Line and Related Structures Construction | Pipelines, treatment plants; concrete vaults, pads. | High – Containment structures. | $45M |
| 237120 | Oil and Gas Pipeline and Related Structures Construction | Energy infrastructure; minimal concrete. | Low | $45M |
| 237130 | Power and Communication Line and Related Structures Construction | Transmission lines; pole bases. | Medium – Concrete anchors. | $45M |
| 237210 | Land Subdivision | Developing land; roads, utilities prep. | High – Curbs, sidewalks. | $34M |
| 237310 | Highway, Street, and Bridge Construction | Roads, bridges; asphalt/concrete paving, decks, culverts, guardrails. | Very High – Paving, bridges key for us. | $45M |
| 237990 | Other Heavy and Civil Engineering Construction | Dams, tunnels, marine; concrete dams, linings. | Very High – Structural concrete. | $45M |
| 238110 | Poured Concrete Foundation and Structure Contractors | Pouring, finishing, gunite, pumping, repair, footing, grouting, mud-jacking, shotcrete; excludes paving/sealing. | Very High – Our primary code. | $19M |
| 238120 | Structural Steel and Precast Concrete Contractors | Precast installation, erection. | High – Precast handling. | $19M |
| 238130 | Framing Contractors | Wood/metal framing; minimal concrete. | Low | $19M |
| 238140 | Masonry Contractors | Brick/block laying, stone setting, chimney, fireplace, foundation (block), stucco, tuck pointing; excludes poured concrete. | High – Block work complements pouring. | $19M |
| 238150 | Glass and Glazing Contractors | Window/glass installation. | Low | $19M |
| 238160 | Roofing Contractors | Roofing materials installation. | Low | $19M |
| 238170 | Siding Contractors | Exterior siding. | Low | $19M |
| 238190 | Other Foundation, Structure, and Building Exterior Contractors | Welding, waterproofing, decking. | Medium – Waterproofing concrete. | $19M |
| 238210 | Electrical Contractors and Other Wiring Installation Contractors | Electrical systems. | Low | $19M |
| 238220 | Plumbing, Heating, and Air-Conditioning Contractors | HVAC, plumbing. | Low | $19M |
| 238290 | Other Building Equipment Contractors | Elevators, alarms. | Low | $19M |
| 238310 | Drywall and Insulation Contractors | Interior drywall. | Low | $19M |
| 238320 | Painting and Wall Covering Contractors | Painting services. | Low | $19M |
| 238330 | Flooring Contractors | Floor coverings. | Low – But concrete subfloors. | $19M |
| 238340 | Tile and Terrazzo Contractors | Tile, terrazzo installation. | Medium – Terrazzo is concrete-based. | $19M |
| 238350 | Finish Carpentry Contractors | Trim, cabinetry. | Low | $19M |
| 238390 | Other Building Finishing Contractors | Ornamental, partitions. | Low | $19M |
| 238910 | Site Preparation Contractors | Excavation, demolition, grading. | High – Prep for concrete pours. | $19M |
| 238990 | All Other Specialty Trade Contractors | Fencing, asphalt/concrete paving (lots, sidewalks), specialty trades not elsewhere classified. | Very High – Paving lots, driveways. | $19M |
Detailed Subsector Explorations (Accordion Style)
Includes general contractors for residential/nonresidential buildings. ~502k residential, ~64k nonresidential businesses. Concrete use: Foundations, slabs, parking. Example: In 236220, bid on school projects via SAM.gov using NAICS filter.
Volume Tip: Target Portland commercial builds like offices; check local permits.
Infrastructure focus. 237310: Highways/bridges – concrete paving, decks. Size: $45M. Examples: Airport runways, culverts. In Oregon, ODOT bids often use this.
Volume Tip: Monitor SAM for federal highway repairs; add PSC Z2LB for roads.
Our core: 238110 for poured concrete (size $19M). Activities: Finishing, gunite pools, repairs. 238140: Masonry blocks. Complements: 238990 for paving.
Volume Tip: Use for daily leads; filter SAM/OregonBuys by these for concrete-specific bids.
FAQ: Common Questions on NAICS for Concrete Contractors
Use census.gov/naics search tool or naics.com. Enter keywords like ‘concrete pouring’.
Yes, add all relevant in SAM; primary sets size standard.
Appeal to SBA OHA within 5 days of solicitation.
Annually in SAM; or when services expand.
Resources and Next Steps
- Official NAICS Lookup
- SAM.gov Registration & Bids
- OregonBuys for State Opportunities
- PSC Manual
- Internal: Use in daily lead reports; contact XXXX for bid strategies.
This declassified guide updates with NAICS revisions (next 2027). [REDACTED SENSITIVE INFO]
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