How Many Roof Trusses Will I Need

The roof system is feet long.

How many roof trusses will i need.

Gable roof trusses use this calculator to determine the number and lineal feet of trusses in a gable roof. If your home is going to have a very large roof to cover the square footage of your home you will need larger dimension lumber. The trusses are inches on center. 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.

If you re thinking about replacing your roof with a new one you will need a roof truss calculator. Home order. The truss bottom chord is feet wide. For example a house that covers over 2 500 square feet will use 2 6 roof trusses rather than 2x4s.

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. Most are spaced between 18 26 inches apart. 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. Enter the following dimensions.

Trusses are required by all building codes to be engineered by a structural engineer and have an engineer s stamp on the truss s drawings. The alternative is to build up the roof s frame with 2x8s and 2x10s. Use of manufactured roof trusses can dramatically cut labor costs when framing a gable roof compared to building rafters.