The Big 12® is seven tools in one: a framing square, try square, miter square, protractor, saw guide, stair gauge and out-of-square corner angle finder. It’s constructed of heavy-gauge aluminum alloy and includes the Layout Bar for use in determining out-of-square corners. Also included are the Swanson® Blue Book for roof and stairway layout and Layout Bar with hardware.
See how to LAY-OUT STAIRS
See how to fix OUT-OF-SQUARE CORNERS
Features
Heavy gauge aluminum alloy
Matte finish to prevent glare
1/4 in. and 1/2 in. spaced notches to facilitate scribing lines
Black gradations for easy reading
Patented Layout Bar
Great for deck framing and stairway building!
