For example, most decks have joists that are spaced 16” on center. This fits the building code as long as you do not notch the posts. However, you can still orient your joists to ensure the fewest amount of deck posts are required. Deck Layout and Footing Position Spacing DIY Starting with your perimeter, mark the location of each deck post to locate the fitting position. This provides a neater finish to the If you opt for a two-ply beam, you’ll need at least three deck support posts and deck footings. If upgrading the size of the lumber for your deck beam means using one less footing, then it might be worth the extra cost as you would save time and effort avoiding digging the third footing. Posted by 16 days ago. DecksDirect Pro Tip: Using the Drivable Post Anchor by OZ-Post to create a solid deck footing for your project without the hassle of concrete is a brilliant way to keep the building process moving fast. On the other hand, you can always fabricate a larger deck beam and put your deck support posts further apart. Like a deck beam, joists that are longer will require deck support posts that are spaced closer together. I would like to build a simple deck next to a 24' round pool maybe 12x12 or 12x14. Decks 24 "to 5-10" (180 cm) need 36 "guards and anything above 5-10" requires a 42 "high railing. Spacing the Piles The piles in this example deck are 125 x 125mm H5 radiata pine piles, spaced at a maximum of 1200mm along the length of the deck to directly support the bearers. Above Ground Pool Deck Post Spacing. If it doesn’t, even a fall of a couple of feet can cause serious injuries. Current building code standards require deck railing posts to be attached using bolts. When you consider that more than 6,000 people suffer serious injuries and even death every year from failed decks and balconies, this is something that should be taken very seriously. Linear metres and cost are auto updated when the deck is re-calculated, with individual costs for stumps, bearers and joists displayed in each section. Below, we’ll discuss how to properly space your deck posts. Determining the spacing of posts is the first step in installing a railing on your deck or porch. My Pool. For instance, let’s say you have two decks – one with 12’ joists and the other with 18’ joists. We recommend beams are constructed from two 44 x 145mm Q-Deck deck joists and are placed at maximum centres of 1.8m. What is the reasoning behind this spacing? Screw the balusters through the stringer with 3-in. Ambitious? At a minimum, with no ledger board, you’ll need two beams and four deck support posts. Note: Tributary area of shaded section on the free standing deck … Smaller beams require more support posts, so any money you gain by purchasing 4x4s instead of 6x6s is more than likely lost because you’ll have to dig more footings to accommodate the weaker 4×4 support posts. Ideal deck post spacing is 8 feet or less. Opting for the 3-ply 2×10, resulting in 3 deck support posts, would result in a seriously strong deck, and you would place the third support post right in the center of the beam. One of the biggest is knowing what your local building code allows. Your local building department might require closer post spacing for added rail strength. Hit + and - buttons to open or close spacing, re-calculating the deck to find how different spacing options effect cost and materials. My deck builder uses single 2X10X10 beams set on posts that are on average 9' apart. 4×4 deck support posts cannot be used if a deck is more than 5’ off the ground. If you can’t find your local building code online or just want to play around with calculations to envision what your deck support post layout might look like, then visit an online deck post spacing calculator. Measure the distance from the center of one corner post to the center of the next corner post. A shorter beam span means more deck support posts. One common problem faced when spacing and mounting deck railing posts doesn’t have to do with the post themselves but rather with what you’re attaching them to the rim joists. As most decks are attached to a home, you’ll need to account for the corners of the deck that attach to the deck ledger. Deck Footing Spacing and Layout The larger the beam and footing size, the fewer footings that are required. Where it intersects with the deck joist span provides you with the maximum spacing between your posts. The anchor is hidden within the post unlike unsightly bulky exterior metal post brackets. You’ll need to install posts on either side of the stringer where the stairs meet the deck, which will affect the spacing of the other posts on that side. For the 12-foot sides, you’ll need three posts for each side: one for each corner and one at the halfway point (6 feet) between the corner posts. You are limited to two-ply beams – that means two pieces of lumber, such as two 2x8s nailed together for use as a deck support beam. Center a post on each mark and draw a line on either side of the post. Do keep in mind that you may have to adjust your spacing based on the joists that run from the ledger board to the rim joist. The spacing depends on the load up top. Make sure to mount the posts a few inches into account for the ledge board and provide an adequate buffer between the post and the house. One way is to pour concrete in the post hole, set the post on the concrete and backfill with gravel. Bit more time calculating the minimum height of your local building code as long as don! 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