How Wide Are Roof Trusses

While this article focuses on configurations we also have a very cool set of illustrations showcasing the different parts anatomy of roof trusses.

How wide are roof trusses.

To determine how many trusses to create you will first need to measure both the width and the length of the structure you are building. Follow this guide to ensure the spacing and stability of your diy roof trusses. Trusses can be constructed with smaller sized lumber than rafters and often their cost is not significantly higher than normal rafters. The dimensions of your structure will determine the angles formed by the truss s top and bottom beams or chords.

A truss with the same pitch and heel on both sides and a peak at the center is called a common truss. This online truss calculator will determine the all in cost of your truss based on key inputs related to the pitch width and overhang of your roof. A truss for a gable roof on one side of your home for example might need to be 15 feet 4 6 m long and 4 6 feet 1 2 1 8 m tall. Use of manufactured roof trusses can dramatically cut labor costs when framing a gable roof compared to building rafters.

The trusses should be a little longer than the exact width to allow for overhang and you will need sufficient trusses to mount across the length. Common or standard trusses are symmetrical and have standard four inch heels.