How To Build A Floating Deck Over Concrete Patio

How to Build a Floating Deck Over a Concrete Patio

Transforming your concrete patio into an elevated, stylish outdoor living space is an exciting home improvement project. Building a floating deck over your concrete surface is a relatively simple task that can be completed with a bit of planning and preparation. Here's a comprehensive guide to help you create a stunning floating deck that will enhance the aesthetic appeal and functionality of your outdoor area:

Materials You'll Need:

Pressure-treated lumber for framing and joists (2x6 or 2x8)
Decking boards (5/4 x 6 or 1x6)
Concrete shims or leveling blocks
Deck screws (2.5-inch and 3-inch)
Plastic or metal joist hangers
Plastic or rubber deck spacers

Steps to Build a Floating Deck Over Concrete:

1. Prepare the Concrete Surface:

Clean the concrete surface thoroughly to remove any dirt or debris. Check for any uneven areas or slopes and use concrete shims or leveling blocks to create a level base.

2. Layout the Framing:

Determine the size and shape of your floating deck and lay out the pressure-treated lumber for the framing. Secure the perimeter beams (outermost joists) to the concrete using deck screws.

3. Install the Joists:

Space the joists evenly across the framing, typically 12-16 inches apart. Use joist hangers to attach the joists to the perimeter beams. Double-up the joists where needed for added support.

4. Level the Joists:

Use a level to ensure that the joists are perfectly level. Adjust the concrete shims or leveling blocks beneath the joists as needed to achieve a flat surface.

5. Install the Decking Boards:

Start installing the decking boards from one corner, leaving a small gap (about 1/8 inch) between each board using deck spacers. Secure the decking boards to the joists with deck screws.

6. Trim and Finish:

Trim any excess decking boards and install any desired railings or stairs. Apply a sealant or finish to protect the deck from the elements and enhance its appearance.

Tips for Success:

Use pressure-treated lumber rated for outdoor use to ensure durability.
Pre-drill holes for deck screws to prevent splitting the wood.
Leave sufficient gaps between decking boards for drainage.
Check for level regularly throughout the construction process.
Allow the deck to cure for a few days before applying sealant or finish.

By following these steps and tips, you can successfully build a floating deck over your concrete patio, creating an inviting and comfortable outdoor retreat. Whether you're enjoying the sunshine, hosting family gatherings, or simply relaxing in the fresh air, your floating deck will provide years of enjoyment.