Rafter squares are an essential part of any carpenter's measurement tools and equipment. Whether you are working on rafter layout or just need a quick 45 deg or 90 deg angle measurement, EMPIRE® is committed to delivering the most refined, accurate and easy-to-use layout square. Our TRUE BLUE® rafter squares deliver on our commitment and legacy of providing quality measurement solutions while our other rafter squares deliver a full line of solutions to meet any measuring needs. Back in 2015, EMPIRE® innovated rafter squares by being the first to market with laser etching technology, providing unmatched visibility and durability. We later improved upon our squares by adding the SCRIBE-GUIDE™ scribe notch pattern designed to excellent fit any jobsite marking material.