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How to build a raised deck over concrete?

By Bagofconcrete
Page last updated: 03/28/2022 | Next review date: 03/28/2024
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The article aims to answer the question “How to build a raised deck over concrete?”. Step-by-step directions are provided in this article, which shows how to construct a raised deck on concrete, offering your backyard the rise it needs, and how to plan and execute the project.

How to build a raised deck over concrete?

  • The key to your success, as always, will be meticulous preparation. Building a deck on top of a concrete patio involves the same design as building a regular deck.
  • These pre-made 4×4 or 6×6 footings may be used to ensure a level surface. Pre-made and requiring just the drilling of pilot holes in the existing concrete, this is the simplest choice. The tapcon screws will hold them to the concrete afterwards.
  • To begin creating your deck, you may place the deck post in the designated spot.
  • Install a footing holder made of aluminum on top of your concrete footing cast. It is imperative that they be inserted into the concrete while it is still wet. It provides a solid, stable, and level base for the deck post when it is installed.
  • Local construction rules dictate the depth of footings. Deck footings may also need to be inspected by the local authority in charge of the project before the rest of the construction can go forward. Verify the construction regulations in your area.
  • Set the deck posts once the footings have been constructed. 4×4 or 6×6 timber might be used for your project, depending on your specifications. Using a spirit level and plumb rod, align the posts with their corresponding anchors.
  • As a lengthy piece of wood being supported solely by the anchor, the posts may be somewhat off-level when they’re first installed. 
  • A little leaning of the posts is OK, but any considerable deviation must be corrected at the footing level. As long as they are level and plumb when secured to the rim joists, slight leans are acceptable.
  • Attach the deck’s outside rim to the supports we just placed in place using lag screws or carriage bolts. Throughout the procedure, be careful to keep everything level and at the same height.
  • Based on the measurements of your deck, you’ll have to lay down where each beam will be linked to each joist, as well as draw a central line.
  • Joist hangers should be installed at this point. Nails are then driven into the aluminum enclosure to provide structural stability for the internal floorboards.
  • The rim joists of the house must also have joist hangers fitted. Ensure that the joists are aligned horizontally by utilizing a laser beam or accurate measurement.
  • Blocking between joists is a good concept for longer spans. You’ll note that the joists tend to bend in the middle of a 6-foot span when they’re under stress. With blocking in place, the deck may be strengthened at each stage before it is finished, ensuring that everything fits snugly and securely.
  • Easy (and time-consuming). Glue down the decking planks. Throughout the operation, I remained on my hands and knees and operated my porter cable drill. This is something I do not endorse.

What tools do I need to build a raised deck over concrete?

What things do I need to keep in mind while building a raised deck over concrete?

  • Your deck’s layout dictates where your footings should be placed. Using chalk or spray paint, carefully measure, plan, and mark the positions of these footings.
  • If you are unclear of the location of water lines, electricity, and sewer lines, it is a good idea to have them examined by a professional. A location for your feet to rest may just not be feasible for whatever reason (steps, water lines, electrical lines).
  • A decent rule of thumb is to measure three times before making a final decision. It is quite dangerous to find poor footing placement too late in a project of this nature.

How much would it cost to build a raised deck over concrete?

It would cost you around $13,500 to build a raised deck over concrete. Since lumber prices have risen sharply during the last year, only to fall back marginally. It will cost more or less to install a raised deck depending on the time of year. In 2019, I spent $3,376 building this deck.

Keeping in mind that my overall cost includes everything from timber to joist hardware to nails and screws is key. An enormous amount of money might be saved if you would instead hire a general contractor. 

Conclusion

It takes careful planning, effort, and patience to build a deck on top of concrete. Any project, large or little, needs a strong, unbreakable basis to ensure success. Measure twice, cut once, and don’t be in a hurry.

Creating a deck needs meticulous planning, procurement, and construction, making it the ultimate DIY job. Unfortunately, it’s not always possible to create our deck on an even, level ground surface.

Frequently asked questions (FAQS): How to build a raised deck over concrete?

How to build a raised deck over concrete?

  • The key to your success, as always, will be meticulous preparation. Building a deck on top of a concrete patio involves the same design as building a regular deck.
  • These pre-made 4×4 or 6×6 footings may be used to ensure a level surface. Pre-made and requiring just the drilling of pilot holes in the existing concrete, this is the simplest choice. The tapcon screws will hold them to the concrete afterwards.
  • To begin creating your deck, you may place the deck post in the designated spot.
  • Install a footing holder made of aluminum on top of your concrete footing cast. It is imperative that they be inserted into the concrete while it is still wet. It provides a solid, stable, and level base for the deck post when it is installed.

How much would it cost to build a raised deck over concrete?

It would cost you around $13,500 to build a raised deck over concrete. Since lumber prices have risen sharply during the last year, only to fall back marginally. It will cost more or less to install a raised deck depending on the time of year. In 2019, I spent $3,376 building this deck.

Keeping in mind that my overall cost includes everything from timber to joist hardware to nails and screws is key. An enormous amount of money might be saved if you would instead hire a general contractor. 

Bibliography

Max. How to Build a Raised Deck Over Concrete – (Easier Than You Expected). Retrieved from: https://mysplitlevel.com/raised-deck-over-concrete/

Deck and Patio. Retrieved from: https://www.familyhandyman.com/project/how-to-build-a-deck-over-a-concrete-patio/