Decks/Roof over a deck


I have a deck that is 25x39, and sits about 6 ft off the ground and is connected to the house.  I'd like to add a roof to this deck.  How much should this cost?

Hi Reggie,

Although I have built a few deck roofs over the years, my specialty is really the deck itself, and each time I had to price one, I had to do a LOT of figuring and basically take my best guess at what was to be a fair price. All I could really recommend is to add up all of the materials you will need, and break down each stage of the project into steps to figure out a labor price. Labor (as well as material) prices can also vary a good amount geographically.

A few things to keep in is usually a good idea (and a nicer look) to make the roof a foot or two wider than the deck at each end, and about a 2' soffit out past the front, particularly if you have a nice 2 foot soffit on the house to match. The roof being a little larger provides more shade, and more protection from angled rain & snow.

I also don't know if you have a flat vertical wall that runs up high enough on the house to accommodate your desired pitch...that is assuming this is even a shed style roof as opposed to a long run gable or some other style. If you are tying in to an existing house roof, your deck roof could possible run further up onto that than you might first realize...once again depending on the desired pitch and other factors.  


All Answers

Answers by Expert:

Ask Experts


Michael Romano


I can answer any questions relating to decks, porches, exterior stairs & railings, walkways, access ramps, pergolas, deck roofs, screen rooms, etc... These may include design ideas, footing to framing design & construction methods, various species of woods vs. composites & pvc/vinyl materials for decking, skirting, or railing applications. I also have expertise in various rain-free systems for under-deck storage & living spaces.


I have designed and built decks and many other types of outdoor structures for over 25 years for my own home improvement company. We also perform many other types of home improvements, including window & door installation, molding & trimwork, siding, basement finishing, siding, etc. Our main love however, is decks!

NADRA - The North American Deck and Railing Association. Several Small Business & Home Improvement Contractor Alliances & Associations.

I have written several articles over the years for,, and many other deck & construction related websites.

High School graduate. 2 years of Mechanical Drawing & Architecture classes. Vocational School graduate. 2 years of Construction Technology & Carpentry classes. Many years of reading, researching, and application in the real world.

Awards and Honors
I am certified by several decking manufacturers for expert application & installation of their products.

Past/Present Clients
Mainly local residential clients, and occasional commercial clients, including restaurants, nightclubs, office buildings, etc.

©2017 All rights reserved.