Deck footings come in a variety of sizes for various sizes of posts ranging from 10 pads to 24 pads.
Footing for deck with roof.
This raised deck is intended to be attached to a house and sturdy enough to accommodate future additions such as a roof.
The roof loads add to the size of the required bearing area and the projection of the footing under the fill provides for uplift resistance.
How to get a solid frost proof footing.
If the deck doubles as a porch it needs to be able to support no more than 80 psf.
Pads run 80 for six 10 pads.
Most deck roofs require separate footings from the deck to support the weight of the roof throughout the seasons.
For a 10 8 deck with 12 footings expect to spend about 160 on footings.
Larger pads are more expensive.
Porch decks also require larger footings than deck footings.
To decrease the number of footings but likely increase the cost of construction you can instead use an engineered beam.
When you pour concrete footings hold the cardboard concrete form tube about 12 in.
Check out our deck footing frost map to help you understand how deep your footings will need to be excavated.
However if your deck will include a hot tub or roof you must support that weight with additional footings.
Homeadvisor s deck framing guide instructs on how to plan and build a frame including spacing and adding footing posts brackets and anchors beams rim joists and other support features for a deck s foundation.
Or if your deck has many angles additional footings are necessary.
Decks typically are designed to support 55 pounds per square feet or psf of weight.
Put a roof over that deck and perhaps a pier footing foundation is a better choice because it offers more uplift resistance.
You will notice that the support post is also embedded deeply into the concrete and extends no closer than say 4 from the bottom of the footing.
Use batter boards and mason s string lines to lay out locations for seven support footings of 12 inches in diameter.
As long as you are considering all the science behind foundation design the.
Then dump concrete through the tube into the bottom of the hole.
Learn everything you need to know about installing concrete footings to support your deck.
We will teach you how to determine the code compliant size of your footings based on the soil type and tributary loads.
With these style of deck footings there is a lot more work to do.
The flat part at the bottom must be at least 6 thick.
Up from the bottom of the footing.
You can also enclose it later to create a screened in or four season porch.
This is a common rule for footing so don t forget that.
Do this by nailing the sides of the tube to the center of a tic tac toe grid of 2x4s at the top of the hole.
