Gambrel Roof 32 Foot Span Structurial Design

Continuing on from part 3.

Gambrel roof 32 foot span structurial design.

The image below shows a cross section of our simple 12 x 13 house from the joist span tables section of this tutorial. 16 interior clear span. This piece of plywood represents the dimensions for your roof and will serve as an assembly site for your rafters. Ceiling and 19 0 width.

To calculate a gambrel roof select gambrel roof from the roof type dropdown list or click on the appropriate toolbar button to calculate a. This truss will be used in planset. If you have a 10 ft 3 0 m wide shed your roof will be 10 ft 3 0 m wide and 5 ft 1 5 m tall. 32 gambrel attic truss with a 24 12 lower.

10 to 25 clearance on the lower level. Move slider or directly enter angle to alter sweep angle of lower rafters and change the shape. This gambrel style roof allows for a large attic space with a 10 6. Check overhang to calculate rafter overhang equal to the lower level cut at the full rafter depth.

Due to the 13 6 height restriction and the larger span this trusses lower pitch had to be changed from 24 12 to 22 12 to make the pitch break work. A gambrel or barn style roof is simply a gable roof with a change in slope partway up the roof. Let s consider a basic gable wood roof framing design. Floor beam span tables of residential structural design we will now look at roof rafter and beam design.

Heavy timber construction and extra wide posts and beams. Lay a piece of 10 ft 5 ft 3 0 m 1 5 m plywood on the floor. It has a classic gambrel pitch and a massive central cathedral for a dramatic effect. Steel plate joinery for extra strength.

Here we have a wood framed gable roof. Besides its unique appearance a gambrel roof also serves to maximize the usable floor space in the attic area.