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(Redirected from Carpenter\'s square)
:''Carpenter's square redirects here. For the plant, see Scrophularia marilandica.''
In carpentry, a 'square' or 'set square' is a guide for establishing right angles (ninety-degree angles), usually made of metal and in the shape of a right triangle.
See also:

★ Try square

★ Combination square

★ Speed Square

★ Steel square