SOLA’s rafter square combines the functions of a ruler, try square, miter square, angle meter, scribing notches, saw guide, and rafter measurer. The rafter square in the shape of a right-angled triangle has a robust T-edge on one leg for precise 90° and 45° markings. The T-edge can also be used as a sawing aid or saw guide. Parallel to the T-edge, there is a recess with a metric scale in mm and cm (offset scale), which is ideally suited for marking perpendicular lines. The marking edge of the other leg also has a metric scale that allows for quick measurements. Below this scale, there is a recess with notches that can be used to mark horizontal/parallel lines. The hypotenuse has a degree scale for angle measurements between 0 and 90°. The desired angle is determined starting from the pivot point opposite (marked on the rafter square as PIVOT). Parallel to the degree scale there is another recess with two scales for miter cuts. The lower scale is for common rafters (marked on the rafter square as COMMON), while the upper one is for hip and valley rafters (marked on the rafter square as HIP-VAL). At a right angle to the degree scale there is a 90° marking guide for rafter seat cuts.
