How To Build An Octagonal Deck

Octagonal decks are an ideal way to add a unique, eye-catching and easy-to-maintain element to your outdoor space. They’re also much easier to build than you may think. Octagonal (sometimes known as 360 triangle or “diamond”) is one of the most elegant and unique deck shapes. How To Build An Octagonal Deck provides everything you need to know in seven easy steps. Using sturdy 1x material, it’s quick, easy, and fun.

To build an octagonal deck, you’ll first need to select a curved-shaped piece of timber from your local lumber yard. It’s helpful if the piece is pre-painted to avoid any hassle with stains. Then choose a foundation that will accommodate the octagonal shape you have in mind: a brick footing will hold up your new structure, supporting concrete or another heavy foundation. Simply use pre-installed metal railings to support and secure your new decking material.

Building a deck is no small undertaking, but it doesn’t have to be an overwhelming one either. With the right advice and materials, you can build your dream deck in eight simple steps.

Layout the deck

The first step in building an octagon deck is to create a layout for the deck. This will help you determine what size you need and how much material you’ll need. Make sure that your measurements are accurate, because as a result of human error or other factors, you may end up with an odd-shaped deck if they’re not.

The following steps will help determine how to lay out your octagonal deck:

  • Measure the width and length of your yard; these are known as its “footprint.” You’ll also need to know where your house sits on this footprint; it should be centered with equal amounts of space left over on all sides when measured from the back wall. In addition, measure any existing trees or fences that might obstruct views from potential viewing areas within the yard you want plenty of room for people outside (and maybe even inside!) so they can relax while enjoying their new backyard oasis.

Frame the deck

Before you begin framing the deck, make sure to use a level to ensure that your joists are straight and level. You can also use a laser level or chalk lines to mark out where you should place the joists. Once this is completed, it’s time to install some joist hangers into which you will insert your 2x4s.

There are many different options when selecting which kind of hanger to use; however, most professionals recommend installing galvanized metal hangers as they tend to last longer than other types of hardware available on the market today. If you opt for metal hardware instead of plastic or composite materials (which is not recommended), make sure that its weight rating matches up well with what type of material will be used for framing your deck—especially if it needs heavy support like pressure-treated lumber would require.

Add the floorboards

You have to make sure that the floorboards are level before you can continue building the deck. Use a level, and check that the joists are all at the same height. If they aren’t, you’ll need to shim them until they’re all even.

After you’ve made sure that your joists are even with each other, it’s time to attach them to the floorboards with screws. The best way to do this is by using a hammer drill and masonry bit so that there will be some grip between the two pieces of wood when they meet up together. Then, just screw those suckers down. Make sure you use screws long enough so that when everything comes together later on in this process (like when we build our railing) things will remain tight and secure: no saggy decks here.

Install the railings and balusters

The balusters go in first, followed by the rails. To ensure a uniform look, you should install the balusters so that they are flush with the top of your deck and all other levels (or “risers”) on your octagonal deck. You’ll also want to stagger them so there isn’t any line that runs straight across from one edge of a riser to another—this helps add visual interest and depth to your deck design.

Install your rails after you’ve installed all of your balusters in this same manner. When installing these pieces, make sure they’re flush with each other; if there’s an inch gap between two pieces of wood when looking at them from directly above or below—you’ll know something is amiss.

Install the stairs

To install the stairs, you’ll need a framing square and a level. The framing square will help you make sure the stairs are perfectly straight, while the level will help you make sure they’re all at an equal height.

Make sure your staircase is plumb (straight up and down) by placing your level against it and adjusting any loose boards until it’s perfectly horizontal. Next, use your framing square to check that each side of your octagon is exactly 90 degrees from its neighbor, making sure to adjust any boards pointing in different directions as needed. Finally, using a power drill with an adjustable-length bit and a bit extension if necessary (or hammering in wood screws), attach railing posts made out of 2×6 lumber along both sides of each stairway before nailing on rails that have been pre-cut according to their lengths (make sure to measure them before installing).

Add a layer of waterproofing to the deck

The next step is to add a layer of waterproofing to the deck. You can use a pressure washer to clean the wood, rinse it with fresh water and allow it to dry before applying a coat of stain. Apply one coat of stain (optional), then brush on another layer for extra protection. The stain will need about an hour or two before it’s dry enough for you to walk on it again. Once your deck has dried, apply a second coat and let that dry overnight before enjoying your new space.

Seal the deck with a clear finish.

When it comes to sealing your deck, you have two options: liquid sealer or solid paint. Liquid sealers are generally easier to apply and have fewer maintenance requirements, but they can be messy and take longer to dry. Solid paints tend to be more expensive and require some skill in application, but they do offer the advantage of covering up any imperfections on your decking material.

If you choose a clear finish for your octagonal deck, be sure that it’s a waterproof sealer. This will help protect against moisture penetration and make sure that any water spills won’t cause damage from rotting wood or mold growth inside the wood grain itself (which can happen).

Before starting, get your plans approved and make sure you have all permits in order.

Before starting, make sure you have all permits in order.

  • Get your plans approved by a building inspector. Building inspectors will check your plans to make sure they are safe and up-to-code. They can also help you find ways to save money on materials or construction costs.
  • Get your plans approved by a structural engineer. Although the building inspector will check for general safety issues, it’s best to hire an independent structural engineer who can look at if there are any problems with the structure of your deck that could result in injury or property damage if not addressed before construction begins (e.g., poor drainage). A good structural engineer will also be able to advise you on how much weight the deck can hold without being overloaded; this will let them know how many people should be allowed onto the finished product without risking its stability

Final words

In conclusion, building an octagonal deck can be a challenging, but rewarding project. Make sure you have all safety precautions in place and know how to properly use the equipment needed for this project. If possible, have a professional inspect the foundation and verify the required load bearing capacity before you begin construction. When completed, your octagonal deck will provide years of enjoyment for family and friends.

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