Construction Squares » Rafter Squares & Protractors

Rafter Squares & Protractors

Johnson Level Rafter Angle Squares come in your choice of die cast aluminum or high impact structural foam. Aluminum rafter squares come in 12” and 7” rafter square varieties. Johnson rafter angle squares have a dull, protective powder coat finish so they produce less glare in sunlight. CNC machined edges give our rafter squares greater accuracy. Die-cast mold formation makes rafter square graduations deep and easy to read.

The thick edge of Johnson Rafter Squares makes them useful as saw guides and for overhanging boards. Our 12” aluminum rafter square comes with built-in scribe notches and a complete rafter angle square instruction manual including rafter tables, for easy rafter angle measurement.

Johnson Structo-Cast Rafter Squares are made of durable, light-weight, high impact structural foam. Structo-Cast rafter angle squares come in a 7” rafter square and a 12” rafter square. The 12” rafter square comes with scribe notches.

Johnson Angle Finders are incredibly versatile tools that have applications in construction, manufacturing, forensics, the medical field and anywhere people need to originate or duplicate angles. Johnson offers a magnetic angle finder with a powerful magnet to stay put on ferrous metal surfaces, as well as a non-magnetic angle finder.

How to Read a Speed Square
How to Use a Speed Square
Using a Speed Square for Roof Pitch
Using a Speed Square for Rafters
How to Cut Rafters with a Speed Square

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