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Span Tables

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American Wood Council Span Tables

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

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Building Frame Construction Against Blue Sky

APA Structural Use Span Tables

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

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Building Panel Construction Against Blue Sky
Photo APA

Southern Forest Products Association Span Tables

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.

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Wood Beams Against Blue Sky
Photo SFPA

Western Wood Products Association Span Tables

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

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Building Beams Constructed Against Sky
Photo WWPA