Stanley 1-45-530 metric Roofing Square 600 x 400mm STA145530 Features:
The metric roofing carpenters square is designed for all roofing calculations and also the layout of stairs. Made from tempered steel, buffed and with a clear protective finish and has 15 tables for rafter cuts, roofing pitches and rises etc. It is metric only, graduated every 2mm, figured every 10mm on both sides.
