How To Use Framing Square For Roof Pitch

Step 1 determine the roof pitch.

How to use framing square for roof pitch.

Fix stair gauges on the framing square to mark the pitch. The triangle shaped square was invented in 1925 by albert swanson to provide a quick accurate method for marking rafters. A long standing use of the framing square that is missed by many new carpenters is the rafter table imprinted right on the framing square itself. For this project you will need.

Because of its compact size it is frequently used as a saw guide when cutting framing members as well as a layout tool for quick 45 and 90 degree cuts. From one end of the rafter material using a speed square or framing square mark an x in 12 angle on the rafter and cut it measure down y height from the long point of the rafter cut and make a mark. How to use a framing square and its etched on tables to figure out roof slope rafter lengths. Finding the pitch of a roof is simple with a speed square.

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. This data will tell us the required rafter length for a roof of a given pitch or slope. The slope or pitch of a roof is measured in inches of vertical rise per foot of horizontal run. Square guides are available at most hardware and home improvement centers.

A carpenter s framing square includes some tables stamped right into the tool itself. 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. Roof framing rafter layout.