It is an application that allows you to calculate the size of a roof based on the dimensions of a set of rafters. This is an essential tool for designers and architects to help them in the creation of their projects.

The application offers a very simple and intuitive user interface, which allows you to make fast and accurate calculations. It is compatible with both metric and imperial units.

The user can select the type of roof (slope, gable, hipped, front-gable, etc.) and the dimensions of the rafters (width, height, and depth).

The user can also select the style of the roof (bay, gable, hipped, front-gable, etc.) and the pitch of the roof (60, 90, 120, 150, 180, and 200).