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Swanson® Little “Blue Book”

Swanson

UPC: 00038987001109

The Little “Blue Book” for Roof and Stairway Layout includes detailed instructions on how to use the Speed® Square and Big 12® Speed® Square using the “One Number Method”SM for roof layout.

Features
60 page manual

"One Number Method"SM for roof layout

Includes rafter tables & construction diagrams

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