Building on an existing deck.
Extending deck posts for roof.
Tie your existing deck posts into the roof by extending your corner posts with the 4 by 4 lumber.
The footings for porch decks must be larger than deck footings.
Where local building codes allow this practice you can bolt a patio overhead s posts directly to existing deck beams joists or other heavy structural members.
Perhaps you trimmed damage from one end of a post.
Before you begin make sure you re matching the house roof pitch angle and overhang for your roof.
Make the front of the roof the height of the house roof you are presumably tying into with the rear sloping at a rate of six inches over two feet.
Porch decks require 25 additional psf for roof loads for a total of 80 psf.
Many porches use 22 diameter corner and intermediate.
Take a look at our step by step guide for building a shed roof over your existing deck.
One of our readers rune eriksen sent us photos of his design for a home built deck drainage system and we were impressed enough to check it out.
Or you can lag screw through post bases and decking into the top of a deck joist or beam.
I also plan on sleeving those 4x4 s with a composite sleeve for the full length from the 4x4.
Or you re down to the last post and it s not tall enough.
How to make a deck post taller.
His low cost easy to build system catches the water that drips through the deck boards and redirects it to the outside of the deck.
As a result most decks have inadequate footings to support a new porch roof.
Whether you need to add a privacy barrier to the deck or want to add decorative detail you can achieve this by making the posts taller.
These are used to attach the support posts to the frame of the deck.
You can extend the length of the deck posts for added privacy or added decorative impact.
Maybe you forgot to measure twice and cut once.
I am looking to extend my 4x4 corner posts on a deck to build a pergola over top of the deck.
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Your deck space isn t limited by the current height of the posts.