Building Roof Deck Plan

Many porches use 22 diameter corner and intermediate footings.

Building roof deck plan.

Install post base connectors to attach the support posts to the deck frame. Building a shed roof over a deck. Make sure the frame has the appropriate blocking to ensure a solid connection. There are three types of roofs that you ll find over a deck.

Porch decks require 25 additional psf for roof loads for a total of 80 psf. Frame up a box the size of the outer dimensions of your deck using 2. The footings for porch decks must be larger than deck footings. 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. Build the frame of the roof on the ground. Typical decks are designed to support 55 psf lbs per square foot. How to build a roof over a deck step 1.

Gable roof the most common type of deck roof the gable roof forms a triangular shape. As a result most decks have inadequate footings to support a new porch roof.