FAQ: How To Build An Above Ground Deck?

Can I build a deck directly on the ground?

Floating decks can be set directly on the ground or, preferably, a bed of gravel. But it’s best to support the deck on concrete blocks. This keeps the wood off the ground and away from moisture so the wood stays drier and lasts longer.

How do you build an elevated deck?

How to Design and Build a Raised Deck Step by Step

  1. Foundation.
  2. Pour concrete.
  3. Ledger.
  4. Place steel connectors – the strongest way to attach posts to concrete.
  5. Cut posts using your ledger as a height reference.
  6. Set the beam on top of your posts and check beam alignment.
  7. Attach joists using galvanized joist hanger (truss) nails.

How much does it cost to build a 12×16 deck?

12×16-foot Raised Deck: You could build a 12×16-foot treated-lumber raised deck with stairs, for about $2,500 in materials. Hiring someone to do the work for you brings your total cost to $5,000-$7,500.

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How much does it cost to build a 18×18 deck?

The average cost to build a deck is $25 per square foot with most homeowners spending between $4,380 to $10,080 total. An entry level deck with basic materials costs $15 per square foot, while a deck built with premium materials costs $35 per square foot.

How many footings do I need for a 12×16 deck?

A standard deck will need four footings parallel to the house, but they will need to be temporarily braced by 6 inch-by-6 inch posts. Using doubled boards, you will then need to build beams on the top row of the posts to frame the edges of the deck. These must be topped with adjustable post caps.

What do you put under ground level deck?

If the bottom of your deck frame is less than 6″ above the ground or partially buried, you should use pressure-treated wood that is rated for ground contact. This type of wood has a higher level of preservative that guards the wood against rot and decay.

What do I need to build a floating deck?


  1. 2-in x 6-in Pressure-Treated Lumber (Actual: 1-1/2-in x 5-1/2-in)
  2. 2-in x 8-in Pressure Treated Lumber Rated for Ground Contact (Actual: 1-1/2-in x 7-1/4-in)
  3. Concrete Deck Blocks.
  4. Concrete Cap Blocks.
  5. Paver Base.
  6. Joist Hangers.
  7. Double Joist Hangers.
  8. Corner Brackets/Framing Angles.

How do you build a deck that won’t rot?

Build a No-Rot, No-Maintenance Deck

  1. Overview: Benefits, time and cost.
  2. Step 1: Draw up a good plan to save time and money.
  3. Step 2: Lay out and dig the footings.
  4. Step 3: Attach the ledger and set the posts.
  5. Step 4: Install the rim joists and regular joists.
  6. Step 5: Fasten the decking with trim screws.
  7. Step 6: Build the planters.
  8. Step 7: Add trim to the planters.
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How much does a 12×12 deck cost?

Composite Decking Costs at a Glance

National Average Cost $8,064
Minimum Cost $5,821
Maximum Cost $10,826
Average Range $6,611 to $8,901

Does a deck add value to a house?

value report that, on average, homeowners spend just under $11,000 to add new wooden decks, but only see the resale value of their homes increase by $9,000, which is about 82% in recouped costs. Though, if a home already has a wooden deck, choosing to repair or refinish the deck is a smart investment.

How do you price a deck job?

The cost of a professionally built pressured-treated wood deck starts at about $15 per square foot, including materials. The cost for an elaborately built deck using costly hardwoods or composite materials can run about $35 per square foot.

How much does a 10 by 10 deck cost?

If using pressure-treated pine, you may pay between $1,061 to $2,350 for materials. Materials for that same 10′ x 10′ deck can cost between $3,003 and $6,297 if using exotic hardwood. Using composite to build a 10′ x 10′ deck can cost between $1,983 and $4,293.

How much should I charge for labor to build a deck?

Labor Costs

Labor costs will total just about two-thirds of the total project cost. With contractors charging, on average, about $35 per square foot. For an average deck size between 200 and 500 square feet, you can expect to pay out between $7,000 and $17,000 just for installation and labor.

Is a 12×12 deck big enough?

A 12×12 deck is the perfect starter size, offering plenty of room for an outdoor furniture set.

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