The standard rule for footings is that for a basic deck, the larger the beam and footing size, the fewer footings you'll need. Of course, the latter will cost more. The larger the beam and footing size, the fewer footings that are required. Pull out most of the dust by lifting the drill bit quickly as you drill, two or more times. This ensures that the deckboard its tightened down onto the joist with the actual screw thread doing the work in the joist. Read our Buyer's guide to decking. A shorter beam span means more deck support posts. Find the number of posts by measuring the running linear feet and dividing by 8 feet plus 1 for the end, plus 1 more post for the steps, totaling 8. Finish your decking posts with post caps or ball tops. For that reason, we strongly recommend that you use 6x6s instead, even if your building department does not demand them. COVID-19 Update to Customers ... At the other end of the bearer, place a support post on a flat, hard surface. Or, if your deck has many angles, additional footings are necessary. To decrease … In general, posts should be spaced no more than 8 feet apart. In the past, many decks were built with 4x4 support posts (also called structural posts). Terms of use. But these can bow seriously, even if a deck is only 3 feet off the ground. Use the widest dimensions for linear quantities. 1. Think of detached decks like an island in your large kitchen. The packaging will tell you the size of the drill bit to use, as well as how deep to drill the holes. However, if you’d like your deck farther out where there’s more space, you can install a detached deck. Parting boards, also known as pattern boards, add a distinctive look and can eliminate the need to butt boards together to span the width of the deck. For aesthetic or symmetry reasons, more posts may be added. Use the nail gun to secure the bearer to the support post. Cutting and Detailing Deck Support Posts Brendan Casey, Casey Fence and Deck – Frederick, MD. If necessary, adjust number of deck boards to match in both calculations, and see if different board gaps at each end of deck are acceptable, compared to equal gaps and cutting the last board at an angle. 4. If you're unsure ask for assistance in store, and make sure you bring your deck plan with you. Anyway, the deck will be 16' 2" X 17'. Many deck screws will not have the thread size listed, as the term “deck” usually indicates a coarser thread. Work out how many posts and rails you need. Work out how high you would like the balustrade to be. But decks 2 feet or higher will need added support. This article shows installing non-notched posts on top of concrete footings that rise above the ground, to support framing that has already been built on temporary supports. Allow at least two days for the concrete to cure before drilling holes and installing a post. Reposition the post base, aligned with the layout lines, and tap a sleeve anchor down into the hole. Some builders position them every 4 feet for a completely rigid frame. If setting timber post straight into the ground you may wish to coat the timber that comes in contact with the ground with some type preservative. The 17' is on each side of the pool and will circle out, at the middle of the deck the length of the deck will be 13'. The support post’s side should be flush with the outside of the beam or doubled header. That makes a total of eight posts that need to be installed on this average size deck. The decking posts need to be spaced at every metre in each direction. After all, hot tubs, full of water, and people can easily weigh over 5,000 lbs. So in this article, we’re exploring how to safely put a hot tub on an existing deck. "there should be no more than 2m between posts holding up the frame but 4m can be allowed between ends of the frame providing the joists are no more than 450mm apart. My Account. I got a plan from Menard's, which is very confusing if you ask me! When evaluating the costs of garden deck installation, there are various things you need to consider. So build your deck the right way, from the ground and posts up. Rules like this may seem arbitrary, but they’re in place for safety purposes, and to ensure reasonable access to key parts of your home. For more on these, and other, decking accessories, check out our decking buyer's guide. Install the bracing every 16 inches. PROStar, Brendan Casey of Casey Fence and Deck demonstrates how he saves time creating a jig to cut his deck posts. This meant using more postcrete than I would do normally! While a typical deck under 6 feet in height may only require posts set every 5 to 8 feet, the type of deck, the type of wood, the height of the deck and a variety of other factors can influence the spacing of the … And if a deck is over 10 feet tall, you should install bracing. Measure the distance between the two hardware pieces, then subtract 1/16 inch or so to account for imperfect cuts. The answer depends on the size and shape of your deck, the size of your footings, and the size of your beams. Deck Design Software. Making sure the bearer is level, mark its height on the support post. Our nifty decking calculator is just the job if you’re having trouble working out how many decking boards you need for your next project. A “cantilever” is the unsupported end of a joist that extends … Most professionals will encourage you to consider going with a 6×6 deck post form the outset of the project. 3. Use a hand sledge to tap the 6x6 into place, check for plumb, and drive nails into all the hardware holes to secure the post. For that reason, we strongly recommend that you use 6x6s instead, even if your building department does not demand them. Scribe a circle where the base’s lag screw will go. Divide the area of your deck by the area covered by one pack to see how many packs to buy. If you are planning on installing a hot tub or porch on top of your deck, you will usually need more footings and posts to support the additional … They are also less … Posts Required. Post caps: £2 to £7 each: Decking lights: £15 to £40 each: Steps: £50 to £215: Decking stringer: £12 to £28 per stringer: Joists: £6 to £12 each: Weed proof membrane: £30 per pack: Postcrete: £5 a bag: Cost Factors of Installing Garden Decking. The Jacksons decking calculator tool will help you get all the pieces and specifications together to create your garden decking plan - give it a try today. Learn how to install bearers and stumps for a deck with this step by step guide from Bunnings. In the past, many decks were built with 4x4 support posts (also called structural posts). Deck post size is important. The maximum distance between footings is determined by the size of your joist material. You can try to drill holes in concrete with a standard 3/8-inch drill, but it will be very slow going. If you install the post the same day as you poured the concrete, the footing could crack. Also, a home’s electrical panel must be at least 10 feet above any deck structure or at least three feet to either side of it. If your deck is slightly out of square (different widths), calculate results for both widths, and set out each end to suit. Central support joist and the outer frame and cut sections to length check out our decking buyer guide... This deck to be spaced no more than 30″ apart & ideally placed in poured concrete the work in past. 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