Do low decks need footings?
If you want to expand your outdoor living space, a ground level deck might be your best option. Since it’s not connected to a house, it can go anywhere in your yard and doesn’t require deep footings. Because it rises just inches above ground, it doesn’t need stairs or railings.
How deep do footings need to be for a deck?
12 inches deep
By code, the bottom of a footing must be at least 12 inches deep and below the local frostline—whichever is deeper—and bear on stable, undisturbed soil that is free of organic matter. And the code requires a minimum compressive strength of 2,500 psi for the concrete.
What size footings do I need for a deck?
FOOTINGS: – Poured concrete footings should be a minimum of 8” wider than the posts (4×4 post – 12” min. width, 6×6 post – 14” min. width), a two level deck or deck with roof – 24”x24”. – The bottom of the footings must be a minimum of 36” below finish grade level.
How do I plan my deck footings?
Laying Out Deck Footings
- Step 1: Mark the Post Center.
- Step 2: Put in Batterboards.
- Step 3: Stretch the Line.
- Step 4: Square the Corners.
- Step 5: Locate Corner Footings.
- Step 6: Mark Footing Center.
How many footings do I need for a 12×12 floating deck?
For an attached 12 x 12′ deck, you’ll need at least 3 footings, plus at least 2 more if you’re planning on building stairs with it. If your deck will be a different size, it’s easy to figure out how many you’ll need.
How many footings do I need for a 12×12 deck?
Do I need concrete footings for a deck?
Large decks that are attached to the house should always have footings because they act to spread the heavy load of the deck from the surface of a support post over a large surface of the soil so the ground can adequately support it. The footings ensure that the deck will not fall, tip or rot away after a few years.
How far apart should support posts be for a deck?
In general, posts should be spaced no more than 8 feet apart. Some builders position them every 4 feet for a completely rigid frame. The maximum distance between footings is determined by the size of your joist material.
What is the best deck footing option for a ground level deck?
With so many footing options to consider for a ground level deck, it’s important to consider what works best for your budget, deck plan, and skill level. My preferred deck footing option is deck blocks due to their low price and easy installation process.
Do you need a footer for a freestanding deck?
No Shallow Footings Required According to the main code provision for footings, the only requirement for building a deck that is freestanding is that it must have a minimum footing depth of 12 inches below the undisturbed ground surface. There is no need to extend a footing below the frost line, as is required for standard decks.
What size footings do I need for a small deck?
In each case, the bearing surfaces of the footings must be at least the size of your beam’s width. So, even a small deck needs a footer with a bearing surface of at least 4” square. Of course, it’s always best to use footings which are slightly larger than your beams.
What materials do I need to build a low-level deck?
For a low-level deck you need the smallest materials possible to reduce height so the sacrifice for this is that you will require more footings for support. Timber – Any timber used must be H3 as a minimum. This means it’s treated against moisture, rot and insect damage.