True Angle Compoundmiter.com 18"

The World's Fastest & Easiest Crown Molding Angle Measuring Tool!

The True Angle® Tool replaces every triangle, protractor, try square, bevel square, rafter square, framing square, combination square, or any other angle making template presently manufactured anywhere in the world.

The True Angle® Tool is essential for installing Crown Molding & Trim.

Do not assume that those corners are 90 Deg. Measure the angle and cut the crown to fit.

It is very common in most construction for corners to vary +/- 3 deg. Your crown molding will not fit perfectly if the corner measures 87 degrees and you cut the crown molding assuming the corner to be 90 degrees.