Welcome to Decra Roof Calculation

Do you want to find out the necessary quantity of products for your new roof?
Do you want to ask for a quote based on the calculation?
Roof Calculator can help you, please give it a go below!

Predefined Roof Type Calculation

Recommended for end-customers

Measurements that are the result of modelling your roof based on pre-defined roof types and additions.

Decra Roof Calculator

Actual Roof Type Calculation

Recommended for professionals

Measurements that are the result of roofer's on-site measurement or result of specialized computer programs.

Decra Roof Calculator

Roof Calculator is a computer calculator tool that helps professionals and customers to calculate the amount of products needed for their roof based on their input.

Dependent on the region default elements will be given for most important elements of the roof. This means that for each region default elements will be calculated automatically. If the user wants to change default items or add additional items then the default option allows replacement.

Please note that the calculation is based on information related to project requirements provided by the client and that it may not be complete. Before purchasing roofing materials for any project, please check amounts with your suppliers or contractors.