Prefabricated Wood Building Manufacturers NAICS 321992

        Prefabricated Wood Building Manufacturers

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Industry Summary

The 656 prefabricated wood building manufacturers in the US produce modular homes and commercial building units, log cabins, detached garages, sheds, sauna rooms, gazebos, wooden geodesic domes, and farm buildings such as barns, chicken coops and corn cribs. This industry does not include mobile home manufacturers, although some modular building manufactures also offer mobile homes and park models.

Variable Building Material Prices

Prefabricated wood building manufacturers rely on supplies of lumber, particle board, drywall, electrical wiring, plumbing fixtures, windows and doors, roofing and siding materials, insulation, flooring materials, cabinets, paint, and hardware.

Demand for Affordable Housing

Firms stand to benefit by working with land developers, lenders, and the government in creating affordable housing projects.


Recent Developments

Jul 11, 2026 - Prefab Homes Could Stem Housing Shortage, but Challenges Persist
  • The Wall Street Journal reports that the US housing shortage, estimated at 1 million to 5 million units, is pushing policymakers and builders to pursue zoning reform, cheaper construction loans, modular building, smaller starter homes, and more social housing. Eased zoning, smaller lot sizes, and reduced parking or stairwell requirements could lower development costs and increase demand for prefabricated wood building components, especially for starter homes, accessory dwelling units, and modular apartments. Modular projects may cut construction costs by up to 30%, but wider adoption remains limited by varying local codes, lender caution, and investor concerns about relying on third-party factories. Supporters say expanded financing and state-level reforms could help boost supply, while critics warn some proposals could expose taxpayers or property owners to financial risks.
  • Framing lumber prices rose 1.4% for the week ended July 3, reaching their highest level since August 2025 and climbing 5.1% from a year earlier, according to Madison's Lumber Price Index. Canadian softwood lumber duties are set to fall from 35.2% to 25.9%, but a 10% Section 232 tariff would keep total import costs high, adding pressure to a market already affected by volatile demand, supply-chain constraints, and limited domestic production. Higher costs of lumber, plywood, OSB, and other wood products can increase expenses for the prefabricated wood building industry, especially for trusses, panels, and modular components. The National Association of Home Builders said falling mill prices often take weeks or months to reach builders, while price increases move through supply chains much faster, contributing to weaker housing affordability.
  • Sales of existing US homes decreased by 2.4% in June from May but were up 2.8% year-over-year, according to the National Association of Realtors (NAR). NAR chief economist Lawrence Yun said, "The back-and-forth in monthly home sales activity, driven by mild fluctuations in mortgage rates, shows how sensitive home buyers are to affordability conditions. However, job gains—more than half a million since the beginning of the year—will continue to provide support for the housing market." Home sales help drive demand for prefabricated wood buildings, as homebuyers often need extra storage space after moving in.
  • In a recent survey, the National Association of Home Builders (NAHB) asked remodelers to rank 22 types of projects on a scale of 1 to 5, where 1 = not common and 5 = very common. While several types of projects ranked higher, 36% of remodelers ranked "adding accessory dwelling units" (ADUs) as either common or very common. Bathrooms emerged as the most common project type with 73% of survey respondents ranking them either a 4 or a 5 - "common" or "very common," respectively. Demand for prefabricated ADUs may be increasing due to affordability issues in the overall housing market and the aging of the US population, boosting the popularity of "granny pod" additions.

Industry Revenue

Prefabricated Wood Building Manufacturers


Industry Structure

Industry size & Structure

A typical prefabricated wood building manufacturing firm operates out of a single location, employs about 36 workers, and generates about $12 million annually.

    • The prefabricated wood building manufacturing industry consists of about 656 companies which employ about 23,600 workers and generate about $7.9 billion annually.
    • Just 50 firms have 100 or more workers.
    • The industry is somewhat concentrated: the 20 largest firms represent just 3% of the total number of firms but they control 57% of industry revenue.
    • Large companies include Skyline Champion (modular homes), Southland Log Homes, Backyard Products (sheds, gazebos), Country Carpenters (barns and sheds), and JDM Structures (barns and sheds).

                                  Industry Forecast

                                  Industry Forecast
                                  Prefabricated Wood Building Manufacturers Industry Growth
                                  Source: Vertical IQ and Inforum

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