Brunsell Component Links

Alpine Engineered Products

Alpine is part of Illinois Tool Works (ITW). The ITW Building Components Group Inc. is a leading worldwide supplier of technology-driven products and services for the building component industry including wood truss, floor truss, roof truss and steel truss design, engineering, as well as truss connectors & hangers and fire resistant systems.


American Lumber Standard Committee

Authorized by the US Dept of Commerce to maintain the American Softwood Lumber Standard and the basis for the grading and establishment of structural design values for most of the lumber used in wood trusses. Also govern the accreditation of grading agencies. Their website includes the best set of links to authorized grading agencies for structural lumber.


American Wood Council

Part of the American Forest & Paper Association and developer of the National Design Specification (NDS) for Wood Construction as well as many other wood design publications and related services


APA – The Engineered Wood Association

Information about engineered wood and the environment, and what’s new in the engineered wood industry.


Engineered Wood Products Association (EWPA)

The mission of the Engineered Wood Products Association is to be a key internet site to access information about engineered wood products.


Forest Products Society

(FPS) An international not-for-profit technical association.


Timber Engineering Resources

Site provides many links to wood design resources.


Truss Plate Institute (TPI)

Developer of the ANSI/TPI 1 Standard a/k/a National Design Standard for Metal Plate Connected Wood Truss Construction.


Western Wood Products Association

Western Wood Products Association represents softwood lumber manufacturers in the 12 Western states and Alaska. Supported by Western lumber manufacturers, WWPA delivers lumber grading, quality control, technical, business information and product support services to sawmills as well as those who use softwood lumber products throughout the world.



Simpson StrongTie

Structural connectors, shearwalls, anchors, fastening systems, and seismic testing for stronger and safer wood and steel construction.


Wisconsin Department of Commerce

Safety and Buildings list of Administrative codes.