TIP To ensure the deck ends up perfectly flat and level, plane off any high spots on the joists and bearers once the framework is assembled. You’ll also need posts at the bottom of the staircase. There are usually limits to how close your deck can be to another building. See the Deck Post Size Table to make that determination because it will affect the size of beam you choose. Most backyard decks using wooden posts rely on the 5-to-8-feet average for the post spacing, but modern advancements in deck building now allow for metal posts as well as composite posts to be used in place of traditional wood. Decks: How Many Footings do You Need for Your Deck? will have a 1 … These are simple handrail shapes that are permitted by building codes for decks. 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 loads. The farther apart your posts are spaced, the more cable deflection will occur and this can cause unsafe conditions. Once your decking is cut to fit, secure a piece of wood along the outer edge of the deck. The required width of a joist depends on its span: how far it must travel between beams or between a beam and a ledger. © Copyright 2020 Hearst Communications, Inc. Use our baluster calculator to figure it out! © 2004-2019 Decksgo.com. The last board won’t look good if it’s skinny or cut at an angle. the deck will only be a couple feet high. Kimberley McGee is an award-winning journalist with 20+ years of experience writing for a variety of clients, including The New York Times, Las Vegas Review-Journal Home section and other national publications. The larger 12-foot side will have a post spacing of 6 feet at a minimum code requirement. Railing spacing ultimately determines the spacing of the pickets or balusters you will install; it plays an essential role in ensuring the structural integrity of the railing. The more twists and turns a staircase makes, the more posts you will need to include in our deck build. Can I use 2 6x6 posts on concrete piers with 2x12's beams sandwiched around them. Building a deck might sound like a fairly straightforward task that anyone can accomplish, but there are a variety of elements that go into the . Step 1. Decks can also be built from composite lumber, plastic decking, hardwood imports and aluminum, which is mold-resistant and making a surge in popularity among deck designers. Standard rail height is 36 to 42 inches; posts will need to be 10 inches longer. In general, deck posts should be spaced no more than 6 feet apart. The spacing depends on the thickness of decking used. Decking is a visible element of your project, so install it with care. … Build a deck that will last for years to come by properly installing deck posts. Deck Framing (See Figure 3) a. In most cases, it’s best to start with a full board on the outside edge of the deck and … Naturally resistant woods and KDAT treated lumber will not shrink much after installation, so spacing between them can be about 1/8 inch. Attaching Deck Railing Posts . These posts should be no farther apart than six feet on the flat deck and no farther apart than 5 1/2 feet on stairs. Most decking is not strong enough to support longer spans than 16". Thirty-six inches is the most common residential height, but some jurisdictions vary. My Pool. A deck raises the entertainment and aesthetic value of your yard. This helps to prevent wooden posts from rotting. Deck support posts should be mechanically fastened both to the footing in the ground and the deck frame or beam. First off, mark where deck posts will stand in the yard. Covenant and easements are generally covered by local building departments. Input your elevation change and this will figure out your rises and runs, Maximum 36 "oc solid stringer spacing for 2" thick treads, Maximum 18 "oc notched stringer spacing for 2" or 5/4 "thick treads, Maximum nosing of 0.75 "to 1.25" - maximum nosing radius of 9/16 ", Closed risers: minimal nominal 1" thick riser material, Handrails must not project inwards more than 4.5" on either side of stairway. These are your deck support posts. spacing of 400 mm centre to centre. Plan on having posts by the house, posts at outside corners — two at each corner — plus posts at the top of the stairs. The spans of joists varies based upon several factors: joist size, spacing between joists, decking material and wood species. Posts for raised decks should be 100 x 100mm treated pine posts, at max. The decking span you choose will effect the feel and potentially the safety of your deck. Corrosion resistant flashing is required for connecting to wood framed buildings. For longer staircases (those over 5.5 feet), plan to install a few more posts to ensure the sturdiness of the completed staircase. menu Whirlpool Go to navigation. Cut the Posts. Check with your local county or city hall to see if there are any easements or covenants on the title of your land that grant access to the city. Lags must be hot zinc coated or stainless. Attachment methods vary depending on the style of stairs but this is a very common and reliable technique. I will be drawing up the plans for the council to approve as its over 10m2 and also building it myself. Great discussions about using the Deck Foot Anchor™. 4. All Rights Reserved. Refer to Figure 3 for metal posts and brick piers supports. A sturdy and well-designed deck turns your outdoor space into a multi-level play area. Chat about every esoteric  railing topic  under the sun. Connection Diagrams:   FIVE DIFFERENT TECHNIQUES. Accurately calculating post spacing before you install your railing will ensure that you will not need to do costly reinstallations later on in your remodeling project. Locate upper and lower bolts maximum 5.5 "/ 6.5" / 7.5 "apart vertically for 2x8 / 10/12 respectively. Learn the math and how to trace out the number and size of rises and runs to cut out your stair stringer. Understand what design loads and safety factors for testing are. Shop Deck Posts top brands at Lowe's Canada online store. During your planning stage, don’t forget to consider the spacing for your beams. Of course, a 6×6 post for the deck has a few other benefits beyond just its load-bearing abilities. Where to position posts in deck footings. Bolt the posts to the inside of the rim joists. It comes in a wide variety of colors and textures and will last longer than untreated wood. A plain 200-square-foot rectangular wood deck with posts and rail fencing will cost around $1,000-$3,000 for parts and lumber. Find out WHAT the irc says about building code requirements for decks. It also depends on the joist spacing. Can I use 2 6x6 posts on concrete piers with 2x12's beams sandwiched around them. This is all great information to learn before you start your big project. maximum spacing. over an area of 4 sq. What Is the Required Spacing for Deck Posts? That makes a total of eight posts that need to be installed on this average size deck. Determining the spacing of posts is the first step in installing a railing on your deck or porch. A variance is a rarity. When pulled apart, the maximum gap cannot be more than 125mm. 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. Maximum Joist Spacing for Decks Southern Pine pdf Maximum Joist Spacing for Decks. the deck will only be a couple feet high. Expect to pay around $10 to $15 per square foot, depending on materials and labor. My deck will be 3390mm x 3720. If you don't want to use the "standard" sizing that the Code gives you, your option is to compute the required size for each element based on some assumed loading you determine based on knowledge of the used of your deck. It's like hanging around the office watercooler. Where it intersects with the deck joist span provides you with the maximum spacing between your posts. Cut along the line on one face, roll the post ½ way over and cut along the line on the opposite face. Mark the first joist at 8 inches on-center, then every 16 inches on-center toward the ends. Post Spacing Guidelines Space posts no more than six feet apart or follow your local code requirements. If you're installing parting boards in the middle of the deck, start marking the joist spacing from the center of the beams working toward the end joists. The posts need to be placed within the correct measurement around the deck to ensure that it is structurally sound. As a professional writer she has researched, interviewed sources and written about home improvement, interior design and related business trends. Avoid a bouncy, soft deck. will have a 1 to 2 foot cantilever on the pool side. 4-6mm for 90mm seemed . Or do I need 3 posts? (Table 1:4) Deck Terminology Existing Foundation Deck Posts Maximum Height 4 X 4 or 4 X 6 Post - 8’ High- measured to the underside of the beam 6 X 6 Post - 14’ High- measured to the underside of the beam Deck Post to Deck Footing Requirements Make a spacing jig to speed the job. Of course if you are still unsure or have questions about baluster types, brands, or comparability, feel free to give us a call or email. Nail a continuous 150 x 50 mm boundary joist to the end face of each of the deck joists, ensuring it is level with the top of each joist and aligned at each end (see Figure 3). The problem is that the railing post acts like a lever, exerting a very large force on the connection at the bottom. The type of post you use can also affect the spacing between posts. FOOTINGS: THE FIRST STEP TO BUILDING A DECK. Maximum 16'-6 "span for solid stringer (southern pine), Maximum 7'-0 "span for notched stringer (southern pine). The top of your handrail on your balustrade must be at least 1m from the floor of your deck and we recommend using a top rail of at least 40mm thick (either timber or steel). Sizing deck beams got a lot easier with the publication of the 2015 International Residential Code. What Is the Required Spacing for Deck Posts? She earned a B.A. last updated – posted 2015-Sep-21, 4:47 pm AEST posted 2015-Sep-21, 4:47 … Good to Know. c. The location of main exit door to the dwelling. The deck joist span is distance between supporting beams below the joists. Did you know there are at least nineteen different possible ways of securing posts into the framing. Materials Decks must be constructed of long-lasting, moisture-, rot-, decay- and insect-resistant materials. USA, CA, UK, AUS. There are regulations concerning the capacity for loads on the rail as well. Most backyard decks using wooden posts... Local Code. The post in the middle of this flight of stairs … Choosing the right material to complete your deck is important. These regulations advise how much weight or strain a railing should be able to bear from reasonable pressure such as people leaning on it or strong winds. Failing to install a continuous handrail on stairs. For stairs, that maximum gap is taken from the nosing line. The deck post spacing is important. Find out  exactly how many balusters or pickets you need with a single click. Ledgers may be fixed with masonry anchors to structural brick or block walls in accordance with manufacturer’s instructions. Installing deck railing is easy if you use an anchored handrail system. The code requires that the wood railings are spaced 6-feet apart or less on the flat part of the deck. 29 Jul 2011. Any deck that is 8-by-12 or larger will need a post installed at each of the corners. Determine the basic design of the deck, such as posts, beams and other spacing, and prepare a materials list. In general, posts should be spaced no more than 8 feet apart. Decks not connected to ledger need not have footings extending below frost line. Determine the basic design of the deck, such as posts, beams and other spacing, and prepare a materials list. Above Ground Pool Deck Post Spacing. Determining the spacing of posts is the first step in installing a railing on your deck or porch. Adjust the spacing between deck boards gradually over the next 10 rows of decking until the distance to the house is equal. Whirlpool. Size of the Deck. With this information you can apply for any permits needed. If you’re building a deck that is larger than 8 ft (2.4 m), start with a PVC pipe of 18 in (46 cm) and a post that’s about 6 in (15 cm). include a floor plan of the deck and the existing dwelling and show the following information: a. For most decks, 4x4 lumber is strong enough for structural posts. Round up to the nearest There are several ways to set deck posts; we recommend attaching the posts to concrete footers above the ground. Any analysis of what load a structure may bear upon itself and its foundation must involve the support post network and soil bearing capacity. Then mark out and dig the holes for the uprights. Deck Footing Spacing & Layout The larger the beam and footing size, the fewer footings that are required. What Is the Required Spacing for Deck Posts? How to Build a Deck: Wood Decking and Railings - Lowe's Start by determining the number of posts you need and the post spacing. Divide the length of each side into equal lengths between five and seven feet, depending on the width of your posts. The location and size of all windows and doors opening onto the deck from those rooms. Everyone wants the investment they put into their deck to last. Forums. There are spacing requirements for the maximum span between railing posts as well as for intermediate vertical supports. Deck Joist Maximum Spans. In new construction, be sure floor joists are installed at the correct spacing. Ledger board width must be => deck joist width but =