Cost to Build a Floating Foundation Deck

Build your own deck and save 67 percent by doing it yourself. A deck contractor charges $2,060 to build a 10-by-12-foot floating foundation deck, but a homeowner can do the job for $680. To adjust the cost to where you live enter your ZIP Code.

National Average Improvement and Repair Cost Click to Adjust Cost to Your ZIP Code.
Hours Pro 31.7 Diy 42.5 Money Pro $2060 Diy $680

Cost to Build a Floating Foundation Deck

Cost to Build a Floating Foundation Deck

Build your own deck and save 67 percent by doing it yourself. A deck contractor charges $2,060 to build a 10-by-12-foot floating foundation deck, but a homeowner can do the job for $680. To adjust the cost to where you live enter your ZIP Code.

National Average Improvement and Repair Cost
Hours Pro 31.7 Diy 42.5
Money Pro $2060 Diy $680
Click to Adjust Cost to Your ZIP Code.
By Gene and Katie Hamilton

Decks are typically built with cement footings buried into the ground. An alternative system designed for do-it-yourselfers is to use a pier deck system of solid concrete blocks that float on top of the soil and distribute the weight evenly. This eliminates the need to dig holes and pour and mix cement for the footings. And while a conventional deck is attached to the house, a floating deck stands free from it and therefore is easier to build. The foundation for a ground level deck is made of cement piers that sit directly on the ground. They have slots in their tops and, depending on the height of the deck, hold either vertical posts or horizontal support boards. The decking is then secured to this framework.

If you're budgeting for a new deck here's the numbers: A deck contractor will charge $2,060 to build a basic rectangular 10- by-12-foot ground-level floating deck using a pier system of blocks and composite surface decking. That includes labor and material. You can do it yourself for $680, the cost of the material, and save 67 percent. The materials include concrete piers, 4-by-4 posts, 2-by-6 joists, decking and deck screws.

Deck building is labor-intensive, using heavy materials, and it requires working outdoors, so plan your time accordingly. You'll need a carpenter's level, circular saw and power screw gun.

In the planning phase, make sure to contact your local building department to find out if a permit is required. Most likely, it is. If your deck will be near your property line, take a look at your survey so you know where your property ends and your neighbor's begins.

The average price to build a floating foundation deck noted above is cost data to compare a contractor’s estimate with doing it yourself. Tweak the data by adding your ZIP Code to find a local cost.

Improvement and Repair Cost Updated 2017

The cost and time data is generated by averaging labor and material data from annually updated cost books used by contractors and refined by the authors' experience remodeling 13 houses. They are authors of 20 home improvement books and Do It Yourself or Not, a weekly column syndicated by Tribune Content Agency. The national cost can be adjusted by ZIP Code.

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  • DIY92%
  • PRO8%