Tim Carter shows the basics of a framing square, and how to make the marks for a simple roof rafter.
A framing square is a simple tool that helps with laying out cuts for building a play house or a swing set. In addition, framing squares helps when making a plumb cut or a seat cut.
Tim explains the numbering system used on the framing square. With proper use, you can layout the cuts for roofing rafters. Check out the video for a further explanation.