Framing Square Base Length 24 in Base Width 1 1/2 in Blade Length 24 in Blade Width 2 in Blade Material Steel Graduation Mark Style Printed Graduation Marks - Base 1/10 in 1/12 in 1/16 in Graduation Marks - Blade 1/10 in 1/12 in 1/16 in Specialized Scales Octagon Base Material Steel System of Measurement SAE Square Type Framing Square Coating Anti-Rust Edge Style Square Features 1/8 in Thick EZ Read(TM) Permanent Thermal Bonded Markings Rafter and Essex Board Measures