Layout 1.5-inch Dimensions with the Tongue

What happens here

The presenter demonstrates a practical use for the framing square by using the 1.5-inch wide 'tongue' to mark a line on a piece of lumber. He explains that this 1.5-inch width corresponds to the actual thickness of common dimensional lumber, such as a 2x4, 2x6, or 2x8. This allows for quick and accurate marking of lumber thickness during layout tasks.

Goal: Mark 1.5-inch widths on lumber using the framing square's tongue.