Lumber and Building Products Trade Associations

APA – The Engineered Wood Association

North American trade association for engineered wood products; represents about 175 member mills producing structural panels (plywood/OSB) and a wide range of EWP (glulam, CLT, I‑joists, SCL).

https://www.apawood.org Membership: 175

Composite Panel Association (CPA)

Represents North American composite panel and decorative surfaces producers; covered over 92% of regional capacity and had 174 member companies in 2017.

https://www.compositepanel.org Membership: 174

Engineered Wood Technology Association (EWTA)

Supplier-focused affiliate of APA that advances engineered wood technology; membership reached 125 companies by late 2019.

https://www.engineeredwood.org Membership: 125

International Wood Products Association (IWPA)

Leading trade association for the globally sourced wood products sector in North America; membership listing indicates about 160 company members.

https://www.iwpawood.org Membership: 160

National Association of Home Builders (NAHB)

One of the largest U.S. construction trade groups, uniting the home building ecosystem (builders, remodelers, suppliers, etc.); about 140,000 members.

https://www.nahb.org Membership: 140,000

National Hardwood Lumber Association (NHLA)

North America’s largest hardwood industry trade association; directory references indicate over 1,700 member firms involved in producing, selling, and using hardwood lumber.

https://nhla.com Membership: 1,700

National Lumber & Building Material Dealers Association (NLBMDA)

National voice of independent lumber and building material dealers; represents over 6,000 member locations (yards and component plants).

https://www.dealer.org Membership: 6,000

National Roofing Contractors Association (NRCA)

Represents the roofing segment of the building products industry across contractors, manufacturers, distributors and more; has 3,500+ members.

https://www.nrca.net Membership: 3,500

National Wood Flooring Association (NWFA)

International trade association for the wood flooring value chain (manufacturers, distributors, installers, inspectors); 3,300+ members worldwide.

https://nwfa.org Membership: 3,300

North American Wholesale Lumber Association (NAWLA)

Wholesale-focused association linking forest and building products manufacturers, wholesalers, and affiliates across North America; comprised of 650+ member companies.

https://www.nawla.org Membership: 650

Northeastern Loggers’ Association (NELA)

Regional trade group for the logging, sawmilling, and forest products community in the Northeast and Lake States; more than 2,000 members.

https://www.northernlogger.com Membership: 2,000

Northeastern Lumber Manufacturers Association (NELMA)

Grading and marketing association for Northeastern softwoods; historical fact sheet lists 590 total members (all categories) as of January 1, 2012.

https://www.nelma.org Membership: 590

Northeastern Retail Lumber Association (NRLA)

Represents independent LBM dealers and associated businesses across the Northeast U.S.; about 1,160 member companies.

https://nrla.org Membership: 1,160

Pacific Lumber Inspection Bureau (PLIB)

Nonprofit quality-control inspection and certification agency serving softwood mills and related facilities; provides services to 450+ manufacturers/remanufacturers and wood-packaging subscribers across North America and Europe.

https://plib.org Membership: 450

Southeastern Lumber Manufacturers Association (SLMA)

Regional association of Southern sawmills, treaters and remanufacturers; serves 90 member companies operating across roughly 130 locations.

https://www.slma.org Membership: 90

Stairbuilders and Manufacturers Association (SMA)

Trade association for stair builders, component suppliers, and allied firms; public member directory shows 179 total members across categories.

https://www.stairways.org Membership: 179

Structural Building Components Association (SBCA)

International association for manufacturers of off-site structural components (roof/floor trusses, wall panels) and their supply chain; reached 800 members in 2022.

https://www.sbcacomponents.com Membership: 800

Treated Wood Council (TWC)

Government-affairs council for the treated wood sector; membership comprises 192 treating companies, 135 wood producers, 13 preservative manufacturers, and 217 associates (557 total).

https://www.treated-wood.org Membership: 557

Western Red Cedar Lumber Association (WRCLA)

Nonprofit representing 27 producers of Western Red Cedar products in BC, WA, OR and ID; runs Real Cedar marketing/education programs.

https://www.realcedar.com Membership: 27

Window & Door Manufacturers Association (WDMA)

Trade association for the window, door and skylight industry; represents approximately 145 U.S. and Canadian manufacturers and suppliers.

https://www.wdma.com Membership: 145