Gambrel Roof Gusset Size

The gusset system relies on a pair of 3 4 inch fir plywood gussets at each joint with the rafters sandwiched in the center.

Gambrel roof gusset size.

For the gambrel truss we will need 6 total gusset plates made out of 1 2 material like osb or plywood. When the construction and assembling of the trusses are completed they re placed on top of the building and then fortified by being secured to the floor. With your first truss measuring out ok its time to cut and attach gusset plates. The trusses have two roof beams present on each side and a gusset plate is used to support the roof beams.

Taken together the plywood pieces have the same thickness as the rafters themselves. Move slider or directly enter angle to alter sweep angle of lower rafters and change the shape. Gambrel roof framing geometry calculator inch this gambrel roof fits in a semicircle and starts as the top half of an equal sided octagon. Entering 0 x 0 in the fields will.

Besides its unique appearance a gambrel roof also serves to maximize the usable floor space in the attic area. You must also use glue construction adh. Analyzing the gusset system. Nail gusset plates to the truss at all 3 connection spots with 8d common nails using 10 per connection 5 per each truss end.

The size of the roof dictates the number of trusses required for completion. Enter the size of the upper fascia board or select a lumber size from the dropdown list. Check overhang to calculate rafter overhang equal to the lower level cut at the full rafter depth. The gambrel spans 10 feet.