Building Roof Deck Plan

Typical decks are designed to support 55 psf lbs per square foot.

Building roof deck plan.

Frame up a box the size of the outer dimensions of your deck using 2. Install post base connectors to attach the support posts to the deck frame. Do not attach the post base to only decking. Gable roof the most common type of deck roof the gable roof forms a triangular shape.

Lift the box. There are three types of roofs that you ll find over a deck. Many porches use 22 diameter corner and intermediate footings. How to build a roof over a deck step 1.

Shed roof a single sloping surface that starts at the exterior house wall and ends at support posts. Tie your existing deck posts into the roof by extending your corner posts with the 4 by 4 lumber. Make sure the frame has the appropriate blocking to ensure a solid connection. Build the frame of the roof on the ground.

Porch decks require 25 additional psf for roof loads for a total of 80 psf. The footings for porch decks must be larger than deck footings.