Roof Truss Calculator

Need to know how many trusses you’ll need for your roof?
With this app, you can quickly and accurately calculate the number of trusses, the total wood volume, and—if desired—an estimate of the total weight.

How It Works

Enter the total roof length (in meters).
Specify the roof width and the distance between trusses.
(Optional) Add the estimated weight of a single truss to calculate the total weight.
Click “Calculate Trusses and Materials” to instantly get all the key results.

Results

Total number of trusses required
Estimated wood volume per truss
Total wood volume for the roof
(Optional) Total estimated weight
A handy “Copy Results” button to save your data

Features

Compatible with Polylang for multilingual translation
Intuitive, fast interface
Accurate and instant calculations
Fully responsive design for desktop, tablet, and smartphone

Ideal For

Craftsmen and DIY enthusiasts looking for precision and efficiency

Construction companies and carpenters

Surveyors and designers

Homeowners building or renovating wooden roofs