Porch Roof 2x6 Rafters

Porch roof rafter length rafter plate location.

Porch roof 2x6 rafters.

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 calculator assuming spf construction grade lumber says 2x6 for the rafters at 7 feet and 2x10 for the 14 foot long joist. Rafter span tables use these tables to determine lengths sizes and spacing of rafters based on a variety of factors such as species load grade spacing and pitch. A square of shingles cover 100 square feet.

For more information see our disclosures here. Span calculator for wood joists and rafters also available for the android os. This post may contain affiliate links. In the example above you will need 6 squares to cover a porch roof that is 534 square feet.

We show you the steps involved and calculations required for buildng a roof for your porch or constructing one over your deck or patio. We show you how both a typical rafter style porch and truss roof area constructed. Visit the roof framing page for more information on cutting roof rafters and visit the roof pitch calculator for determining rafter lengths based on rise and run. If this calculator from the american wood council is to be believed and if my assumptions about your materials and load are correct the max span is about 10ft for a pine 2x6.

Patio roof maximum beam rafter spans. It is always better to have a large rafter rather than be concerned with a sagging roof. If necessary use a sliding bevel to determine angles needed where the rafters will meet the ledger board. If your project had a rafter length of 8 or less a safe and strong method is to use 2x8 framed 16 on center.

Ok now you want to install rafters. Attach the rafters attach 2x6 rafters to the house with joist hangers and or supported by the ledger board. Rafters are placed on 24 centers and attached to the beams and settle joists are attached as needed image 1. Structures such as sheds or barns can be frames with rafters every 24 again make sure to consult local codes.