How Many Footing Do You Need For Your Deck?
The answer depends on the size and shape of your deck, the size of your deck footings, and the size of your beams. The larger the beam and footing size, the fewer footings that are required. For most situations, you will want to place footings and posts less than 8' apart. If you are planning on installing a hot tub or porch on top of your deck, you will usually need more footings and posts to support the additional loads. Freestanding decks that are not attached to the house with a ledger board will require an additional beam and row of footings. Decks with lots of angles may also require additional footings. Use the Decks.com footing and beam calculator to test your design.
Cutting a Concrete Pad
Learn how to use a concrete saw to cut a hole in a patio slab to install a deck footing.
Monolithic Pier
Compare the pros and cons of installing a solid concrete deck footing using a cardboard tube or engineered forms.
Digging Foundations
Learn how to hand dig or mechanically dig your deck footings with step-by-step instructions. Learn what to do if you hit a rock.
How to Decorate Deck Support Columns
Browse some examples of decorative deck support posts for tall decks.
How to Slope a Deck for Water Runoff and Drainage
Learn if your deck needs to be sloped and how to do it.
Deck building tools
As with any professional job, having the right tools can make all the difference.
More Helpful Resources
Explore Articles by Topic
Footings
Information related to installing frost footings for decks
Framing
Learn structural framing methods
Decking
Learn about wood and composite decking materials
Stairs
An in-depth look at the complex issue of how to build stairs
Railings
How to install guardrails and handrails to meet IRC code
Features
An overview on water drainage, benches, planters and lights
Design
The basics of deck design
Planning
Learn about permits and working with contractors
Porches & Patios
Build a covered deck to enjoy all seasons
Ledger
Proper attachment techniques
Care
Maintain your deck to maintain your investment
Materials
An overview on water drainage, benches, planters and lights
Can I use pier blocks?
Our inspector explains the pros and cons of using pier blocks for deck foundations.
Retaining Walls
Avoid problems related to digging deck footings near retaining walls. Learn some tips from the pros for how to handle these difficult situations.
Soil Conditions
Learn how soil conditions can affect the size of your deck footings. Do you have gravel, sand or clay soil?
Why is Joist Protection so Important for Your Deck?
If you’ve ever seen a piece of wood left out in the weather for any period of time, you know what happens: decay. Whether through wet rot, insect damage, or mildew, the fibers begin to break down.
Building a Balcony Deck
Learn information about balcony decks that use cantilevered joists that attach to house floor truss systems.
How to Install Concrete Support Deck Posts & Columns
Learn how to install concrete deck piers to support your deck frame. Use cardboard form tubes to extend your footings above grade.
Explore Articles by Topic
Footings
Information related to installing frost footings for decks
Framing
Learn structural framing methods
Decking
Learn about wood and composite decking materials
Stairs
An in-depth look at the complex issue of how to build stairs
Railings
How to install guardrails and handrails to meet IRC code
Features
An overview on water drainage, benches, planters and lights
Design
The basics of deck design
Planning
Learn about permits and working with contractors
Porches & Patios
Build a covered deck to enjoy all seasons
Ledger
Proper attachment techniques
Care
Maintain your deck to maintain your investment
Materials
An overview on water drainage, benches, planters and lights