Step-by-Step Guide to Building a Floating Deck

A floating deck not only boosts the aesthetic appeal of your outdoor space but also serves as a great place to relax and soak up the sun or enjoy a view of your yard. However, the process of building a deck can be complex and time-consuming, especially if it’s on water.

To save you the hassle, here is a step-by-step guide on how to build a floating deck that will help make the entire process less complicated for you.

Confirm your Area’s Zoning Rules

Before you start building, you must check the zoning laws in your area. This is important as you may be subject to building codes, which regulate the placement and size of different structures on a property.  As such, confirm with your local building department to ensure you’re compliant before starting.

However, in most areas, you might not need any inspections or permits to build a floating deck since it doesn’t require any stairways or railings.

Gather Your Tools and Materials

Next, you need to ensure you have all the materials and tools required for building a floating deck. Here is a list of the things you’ll need:

•  Measuring Tools– These include speed squares, levels, tape measures, and chalk lines. These tools will help you maintain precision during the building process.
• Drill and deck screws: Make sure you have more than enough galvanized fasteners such as nails and screws to secure the flooring and framework of your deck. Use a drill for a faster assembly process.
•  Circular saw– For cutting the pressure-treated boards to the right sizes
• Shovel and rake: These tools come in handy when leveling the ground under your deck.
•  Deck blocks: For decking foundations, you can use concrete blocks since they’re quicker and simpler to work with.
• Wood: Get pressure-treated lumber for decking boards and joists.
• Wood stain or paint: For protecting your deck’s exterior from weathering.
• Safety gear such as a helmet, safety glasses, gloves, and enclosed shoes

6 Simple Steps to Building a Floating Deck

1.  Prepare the Deck Area

Using a shovel, clear the area where your deck will be set. Level the area using a rake and, if necessary, add a layer of gravel to make it sturdier and inhibit weed growth under the deck.

2.  Set the Concrete Blocks

On the prepared area, set the cement blocks, spacing them appropriately depending on the size of your deck. Consider adding one or two blocks in the center to make your deck more stable and solid. The blocks will serve as the foundation for your deck. On the blocks, place a board across and check that the blocks are in level using a carpenter’s level.

3.  Build the Deck Frame

On a flat area, cut the joists to the size of your deck plan using a circular saw. Place the rim joists and end joists together to create a rectangle. Using a drill, make pilot holes and secure the joists together with three-deck screws at each corner. Attach more joists inside the frame using joist hangers. Ensure the joists’ tops are flush before fastening them.

4.  Position the Deck Frame

Once you’re done building the frame, place it onto the deck blocks such that the frame rests at the centers of the blocks. Using your measuring tools, measure diagonally between different corners to ensure the frame is square and level. If not, push diagonally from two opposing corners to make it square.

Also, ensure the frame is in contact with each block and level. Consider adding or removing gravel or soil under the blocks to adjust the height.

5.  Place and Fasten the Deck Boards

Measure your deck boards and trim accordingly to the appropriate size. Place the decking boards across the floor joists, starting with the first and last boards. Maintain about 1/8 inch spacing between the decking boards for drainage purposes.

You have the option to have your decking boards overhang slightly or flush with the frame. Drill pilot holes into each decking board, going into the flooring joists and end joists. Then, using deck screws, fasten the boards firmly to the joists.

6.  Paint Your Deck

Finally, apply an outdoor paint or wood stain on the deck’s exterior to protect it from weathering.

Tips for Building Your Floating Deck

Here are important tips you may want to consider while building your floating deck:

•  If you’re building a massive floating deck, be sure to add several concrete blocks in the center of where you’ll install your deck for additional support. Also, increase the stability of your deck by attaching a few more inner floor joists.
• Elevate your floating deck high enough above the ground to ensure proper air circulation beneath the deck. This will help prevent your floating deck from developing mold and rotting.
• Always finish your deck’s exterior using a protective paint or wood stain once the wood dries.
• Pressure-treated lumber makes the best wood for decking flooring and frame due to its enhanced durability and affordability.

Hire a Professional Deck Installer

With careful planning and skills, building a floating deck at home shouldn’t be difficult.  However, if you don’t have the time, special tools, or know-how to build a deck on your own, you can seek the services of a professional deck installer such as Tonka Built.

Don’t know how to build a floating deck on water? Contact us today, and let us take care of the hard work for you.