How Do You Cut Quarter Round Molding to Fit in Corners?

Cut quarter round molding at 45 degrees in order to fit into 90-degree corners using a miter saw. For accurate miter cuts, clamp your work piece against the guide fence, ensure precise angular alignment of your miter saw, and make a slow, controlled cut through the work piece. For corners that don't measure 90 degrees, cut the molding at half the angle of the corner. For example, if the corner is 120 degrees, cut the molding at 60 degrees.