How To Use A Roof Framing Square

This simple device is crammed with tables data and tricks that allow a carpenter to lay out roof rafters stairs or other building features.

How to use a roof framing square. How to use a framing square and its etched on tables to figure out roof slope rafter lengths. Square guides are available at most hardware and home improvement centers. A framing square is a lot more than a simple square cut saw guide. How to use a framing square for angles.

Framing square guides are small inexpensive metal attachments to the framing square that are locked in position on the square s edges at the pitch and run dimensions to define the roof angle and make the repeated marking of the rafters much more efficient. There are 8 of rise for every 15 of run. The tongue on 8 and the blade on 15. A carpenter square also sometimes known as a framing square or speed square is a type of carpentry tool commonly used by carpenters builders and other home improvement aficionados.

Place the framing square at the top edge of the rafter. How to use a framing square. A quick check with a carpenter square gives you the ability to measure and mark precise angled dimensions for complex projects like roofs rafters and stairways. This article explains how to make quick use of a framing square and its imprinted data to get some basic roof measurement data like roof pitch or slope rafter lengths and end cuts.

Assume an 8 15 pitch. Make a mark along the tongue.