Johnson Level & Tool CS5 16 x 24-Inch Aluminum Rafter Square hand tool

24-Inch Aluminum Rafter Square

The Johnson CS5 is a framing square built for carpenters and builders who lay out rafters, stairs and angles on site. Its anodized aluminium body resists corrosion while keeping weight low for all-day use. Stamped black graduations on both the 24-inch base and 16-inch blade provide clear readings in bright sunlight. The tool suits trade professionals and serious DIYers who need a reliable layout reference.

Graduated base and blade with octagon scale

The base carries 1/10, 1/12 and 1/16 inch graduations across its 24-inch length, while the 16-inch blade repeats the same three scales. An octagon scale adds specialized layout capability for polygonal work. Straightness is held to 0.03 inch and blade thickness is 0.12 inch, so the square stays true under normal job-site handling. It does not serve users who need metric markings or longer blades for wide stock.

Fits standard tool belts and pouches

The square slips into a typical carpenter's pouch or hangs from a belt loop, leaving hands free between layout tasks. Clear anodized finish prevents glare and resists surface wear from repeated contact with lumber. No batteries, calibration or accessories are required, so the tool is ready whenever the job demands a quick angle check. Builders who need digital readouts or laser projection will need a different instrument.