CutOnce - Builder's Calculator

• New Polygon calculator. Enter the number of sides, from 3 to 100, and the side length to get the interior and exterior angles, the interior angle sum, the perimeter, the apothem, the circumradius, and the area, with a live diagram, tape entries, and a PDF. • Roofing does more. Add eave and end overhangs, which count toward the roof area, show on the diagram, and print in the PDF. Enter a valley length to get valley rolls, see the starter length on its own line, pick a waste preset by roof complexity (Simple, Moderate, or Complex), and choose whether underlayment is figured gross or net of laps. In metric, coverage rates now show metric units. • Heel placement for Rafters. A new Heel placement switch measures run and rise from the outside face of the wall plate, as before, or from its inside face. When you pick the inside face, the results are labeled and the PDF notes it, and Help explains both options. • Exact imperial math. Decimal inches and feet you type now round exactly to the nearest 64th, in the Calculator and in every calculator's inputs. In the Calculator, a length times a number you type gives the same answer in either order, multiplying or dividing a length by a number you type rounds only once, to the nearest 64th, and a result too large to show is an error instead of a wrong value.