Carport Rafter Spacing. An essential part of planning a patio roof or gazebo project is determining the number size and spacing of rafters beams and posts according to the loads they will carry. The maximum overhang of house rafters or trusses shall not exceed 750 mm from outside of top plate to end of rafter truss.
You want to make sure that the custom carport will be wide enough for your vehicle or equipment for which you intend to use it. The minimum slope for a carport roof is 14 inch in 12 inches. Lumber grade and rafter spacing.
1-grade southern pine lumber on a roof with a 312 slope or less with a maximum live load of 20 pounds per square foot and a dead load of 15 psf.
The carport structure shall comply with all applicable zoning regulations. 15 rows Visit the roof framing page for more information on cutting roof rafters and visit the roof pitch. Try 22 m span 13 multiplier 286 m Apply the additional 10 permitted in Note 1. The maximum overhang of house rafters or trusses shall not exceed 750 mm from outside of top plate to end of rafter truss.