Gambrel Roof Dimensions

Gambrel roof a gambrel or barn style roof is simply a gable roof with a change in slope partway up the roof.

Gambrel roof dimensions.

Besides its unique appearance a gambrel roof also serves to maximize the usable floor space in the attic area. Move slider or directly enter angle to alter sweep angle of lower rafters and change the shape. The lower slope length is measured from outside wall to the start of the upper sloped roof section. Check overhang to calculate rafter overhang equal to the lower level cut at the full rafter depth.

This series of diagrams shows just how the second floor lays out in each of our six different truss widths. Move slider or directly enter angle to alter sweep angle of lower rafters and change the shape. Gambrel roof framing geometry calculator metric this gambrel roof confines to a semicircle and starts as the top half of an equal sided octagon. Enter the size of the upper fascia board or select a lumber size from the dropdown list.

Things you ll need ruler tape measure speed square chalk line saw 24 2 by 4 inches 5 1 cm 10 2 cm boards 6d nails 3 16d nails 8d common nails 5 inches 1 3 cm thick osb or plywood. Check overhang to calculate rafter overhang equal to the lower level cut at the full rafter depth. Gambrel roof framing geometry calculator inch this gambrel roof fits in a semicircle and starts as the top half of an equal sided octagon. Well let s face it it s a very attractive roof design but there are practical considerations as well.