跳到内容

American Wood Council 跨表

Span tables and design values for joists and rafters in one- and two-family dwellings.

Building Frame Construction Against Blue Sky

APA Structural Use 跨表

Uniform load tables for APA-trademarked structural panels manufactured/qualified in accordance with APA PRP-108

Building Panel Construction Against Blue Sky
APA照片

Southern Forest Products Association 跨表

Span tables for visual and mechanical grades of southern pine lumber joists and rafters, and southern pine lumber and glue-laminated timber (glulam) headers, beams and girders.

Wood Beams Against Blue Sky
照片SFPA

Western Wood Products Association 跨表

Span tables and design values for a variety of western lumber species.

Building Beams Constructed Against Sky
照片WWPA