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SWANSON TOOL CO.EST. 1925
For the trade
Calculate rafters, set layouts, mark decking. The tools that make every cut count on the roof.
Why tools for roofers reach for Swanson
The Swanson Blue Book of Rafter Lengths has been the field reference for rafter cuts since the 1940s.
Pair the Speed® Square with our rafter squares and framing squares for every common, hip, valley, and jack rafter you can lay out.
Curated for the Trade
Free reference for tools for roofers: the Blue Book of Rafter Lengths, pitch charts, and how-to guides for every layout move on the jobsite.
