A framing square just isn’t designed to work with sheets of plywood. Especially when making cabinets, most pieces you need to lay out exceed the length of a standard sized framing square. That’s why Woodpeckers designed their 36″x24″ giant square.
Woodpeckers’ CNC machines the square in the USA from 1/4″ phenolic and guarantees the giant square won’t deviate more that ±.005″ from 90° across its entire length. They make the 36″ long leg 3″ wide and the 24″ leg 4″ wide, and machine three handle slots into the square to make it easy to hold and store. Finally, they laser engrave markings in 1/8″ increments along both sides of the square.
Woodpeckers will begin shipping their giant square the 27th of July (2009) and it will cost about $80 shipped.
Giant Framing Square [Woodpeckers]