Calculate the total surface area of a gable roof including the two sloped faces and optional gable-end walls.
Enter your values below
Length of the building.
Width of the building.
Roof pitch as rise per 12 inches.
Height of the gable wall (auto-calculated from pitch if not specified).
How this calculator works
Gable roof area equals twice the length times the rafter length (hypotenuse of half-width and gable height).
Common questions about this calculator
