framing square

American  

noun

1. a steel square usually having on its faces various tables and scales useful to the carpenter.

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Example Sentences

It’s very easy, and all you need is a simple framing square and a circular saw.

From Seattle Times

Using a framing square or level, draw a square on the drywall around the damaged area.

From Seattle Times

It may be set either from a sample line, drawn on the wood, from a given line on a protractor, from drawing triangles, from the graduations on a framing square, or in other ways.

From Project Gutenberg