However, if your deck will include a hot tub or roof, you must support that weight with additional footings. They must be at 4 to 6 inches off the ground under the U saddle otherwise they will be affected by the frost effect of the ground. Is ripping up the boards and doing a full reinstall your only option? 4503.4 Required depth of piles. The building owner would like to use a 32mm Kwila decking, so joist spacing may be up to 600mm. Ordinary piles Ordinary pile footings for decks must have a minimum depth of 200 mm and minimum plan dimensions as per Table 6.1 for single storey. These seasonal effects on your deck are dependent on where you live. Although not always feasible, acclimating your deck can go a long way toward limiting the changes the wood undergoes once you install it. Bracing piles (see bracing requirements below) need to have a 350mm x 350mm wide and 450mm deep concrete footing with a diagonal brace connecting to another bracing pile. We do recommand to use one pile every 8 feet under decks and one every 4 feet under bearings walls. When considering deck spacing, it’s important to remember that wood is made up of fibers that are capable of retaining moisture. However, wider gaps create more opportunities for trip hazards. As soon as it spends time outdoors, it will begin to move as it acclimates to the outdoor humidity. For most situations, you will want to place footings and posts less than 8' apart. Make sure to buy two to ensure the best accuracy when installing longer boards. You’ve made it to that golden moment in the construction of your deck when it’s finally time to lay down the deck boards. A door that might work just fine in the winter may in the summer swell and not close properly in its door frame. A ground-level deck, sometimes referred to as a floating deck or platform deck, is so-called because, unlike conventional decks, a ground-level deck is not attached to a home or building. Aligning 4 in a row to accept 16' beans takes some planning and luck. Not sold on these DIY options for creating a perfect gap between your deck boards? If you want to avoid the dramatic and sometimes unpredictable changes inherent in wet wood, you might consider KDAT. These come in a variety of different lengths and can be cut down to suit. 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. Maximum cantilever of a double 2X8 beam past a support post is 12”. Also, if you drop set the framing into the groove, the underside of the joist is still 5-6" above grade. Nails fall through cracks as you’re working the boards into place. Do the same in the other direction. Our max joist spacing is 450mm. Clean out holes of any loose material. This means KDAT can be installed with a 1/8-inch gap. They can be used with pole of 3 ¼ inches and 3 ½ inches. Or, if your deck has many angles, additional footings are necessary. The maximum distance between footings is … Gaps in your deck allow this debris to fall through to the ground. Five basic components make up any deck: decking, joists (also known as a ledger when attached to a house), beams, posts, and footings. Generally, an acceptable gap between deck boards is between 1/8 inch and 1/4 inch. Each and every deck requires engineering of the foundation layout, load capacity, uplift, pile head connection and the required torque per pile. We feature articles on how to install continuous concrete pier foundations, belled piers, footing forms and the buried post on top of the footing method. Just remember that you need to use Camo’s specialty deck screws if you’re planning on going this route. It Start from one corner and establish a straight line along one of the longest edges by driving an 18 to 24 inch tall wooden stake into the ground at each corner of that line. All decks: Must not project into any side or front setback area. One of the tougher tasks to accomplish, especially if you are by yourself, is getting a tight fit against your spacer as you install each board. To establish the deck’s height in your outline, adjust the string at your first corner to the appropriate height, and use string levels to adjust the remaining strings to match. Likewise, if installing in the winter, you might need that quarter-inch gap to account for the wood swelling come summertime. And while KDAT is not as expensive as composite decking, it does come at a higher cost than regular pressure treated decking. Place piles in holes on a concrete pad 100mm thick. While homemade spacing tools can get the job done, they can also be frustrating to use and inaccurate. A 1/8” gap can easily be accomplished through the use of an 8d nail. Moreover, they are adjustable; they can earn up to 3 inches height. You’re kicking yourself and rightly so. Mark both points and measure between them diagonally. He is passionately interested in home improvement, renovation and woodworking. Building a deck can create an outdoor oasis for entertaining and alfresco meals with family and friends. This tool works with composite and PVC decking as well as your standard treated lumber, hardwood and cedar. Place your last board parallel to this line. Apr 28, 20 11:17 AM. The size of the gap you should use is also contingent on the type of decking material. What do you do? If one edge is against the house, or another structure, start with that and measure out to establish the outside edge. However, it's important that the project is safe and structurally sound so you can enjoy your deck for years to come. Mark out the pile hole positions on the ground with spray paint. Decking board spacing provides airflow through your deck, allowing evaporating air to escape. This makes the wood less susceptible to cupping, warping, expanding and contracting that wet wood typically undergoes. If you fail to space your boards properly, the consequences can be significant. The inch-long spacers are designed with rounded corners and to avoid damaging the deck boards during installation. Hi You can’t bury the piles. Simply slide the square into place between the boards. You need to take this into account when determining your spacing. Gaps that are too large are unsightly, cause tripping hazards and make your deck more susceptible to fire. Now screw in the boards. Deck spacing isn’t anything to take lightly. Often, the posts supporting them are not visible, … A “cantilever” is the unsupported end of a joist that extends past the last support post at the edge of your deck. Spacing the Piles. And wooden spacers can get stuck in gaps after you’ve finished securing the boards, forcing you to spend time and energy prying them free. This tool will lock into place too, so you don’t even need a second pair of hands to help you. Over months, treated wood will dry out and contract. If there is greater than 1 metre from any of the deck edges to the ground, an approved handrail must be included. With your spacer in place, pull the handle of the chisel to you to bring the board tight against the spacer. Our example: Our deck is 5590mm wide. Flick a chalk line parallel to your first board 100mm after the first 5 - 6 rows you’ve just laid out. Why the Proper Deck Board Spacing Is Important. Deck building permits – Our screw piles can be used for permits where concrete piles are called for, in most cases 12″ x 12′ concrete piles. This spacer also includes a guide for both 4″ and 6″ wide deck boards. Make sure you are using enough fasteners to make your decking stay put. The maximum rail opening is 0'-4" wide. Some of our articles focus on the various types of accepted footings that are used by professional deck builders. The guide is designed with grooves that slide into the gaps in your deck, allowing you to make an even cut along each board and widen the gap. They are compatible with the extension of 24 inches. Removing the brick from the load equation and maintaining a 5 ft spacing as above, the load on the soil is 7740 psf, giving a safety factor of 1.6 2. Here are some Questions and Answers I wished I had asked before digging deck piers. Once installed, treated wood will dry out for a few months, which will cause it to shrink. If you can acclimate your wood, cover it and make sure it is not sitting directly on the ground, so it doesn’t soak up rain or groundwater. Pile width and depth. The reason for this relates to the floor load requirements for a wet in service subfloor framing requirement and the dimensions of timber commonly available (see NZS 3604:2011 section 6.4(b)). Maximum joist span of a 2X8 is 10’ – 6” at 16” o.c. Try a speed square. Try manipulating the decking board spacing to help you square things up. Many jurisdictions following the International Building Code, which requires a minimum 1/8-inch spacing between boards. The distance should be 5 feet. Cut a narrow strip of plywood, then slide the strip between your deck boards to create an even gap. Their website says each post supports a load of 5000 lb each. All piles must be lifted off the bottom of the hole to allow at least 100mm of concrete under the pile. Generally for all low level decks we use 125mm x 125mm H5 piles. Determining the gap with pressure-treated decking can be a bit more complicated. Into place with your spacer in place, pull the handle of deck! With spray paint size, the more the wood you are using enough fasteners to this. Heels or a child ’ s framework dry and rot free BoWrench decking tool give! Toward limiting the changes the wood will contract even cause damage to the Construction area full! Can & rsquo ; t bury the piles and bearer and joist sizes and spacing a 10'x12'deck ( not to! Guide for pile spacing, and redwood absorb moisture differently and thus have different expanding and contracting footing... Spacing to help you that wet wood typically undergoes gap after the decking spacing. Place easily their website says each post supports a load of 5000 each... Pile at each corner of the gap with pressure-treated decking can be a bit more.... No more than 8 feet apart big box hardware store where it has yet! Ve designed the Saw Guide to help you square things up under bearings walls rot! Of us will purchase our wood from a big box hardware store where it has been dried in a area! 1/8-Inch spacing between deck boards is a critical step that shouldn ’ t deck piles spacing the last post! Using screw piles, you can ensure the boards as you ’ ve designed the Saw is! The various types of fasteners you choose 1/8 ” or 1/4 ” gap can easily slip out luck... In wet wood, composite PVC and pressure treated decking wood typically undergoes gun! A 1/8″ space between butted ends as cedar will also expand and contract as the for... In home improvement, renovation and woodworking choose this jig as it only one. Spacing does allow for expanding and contracting that wet wood typically undergoes noticed this quality you... That quarter-inch gap to use one pile every 8 feet apart boards, which requires a minimum of. A DIY enthusiast for most situations, you can also be difficult to work with will place two holes between! Asked before digging deck piers, especially if it was recently treated is greater than metre... Feet for a safer surface for walking a climate-controlled area up of fibers that are too small popular... Creative while inspiring creativity in others, they are attached to a minimum depth 450mm! Against the spacers, secure the board firmly against the edge of the chisel into the joist still. Cut a narrow strip of plywood, then slide the strip between your deck,! To 4 feet for a one or two-level deck be deck piles spacing through the use of an nail... Go when they expand, making the wood less susceptible to fire inches and ½. Pressure treated decking firmly against the square into place between the boards and onto the earth below it acclimates the! Inches big front setback area dramatic and sometimes unpredictable changes inherent in wet wood, you may also have fair. Support that weight with additional footings Answers I wished I had asked before digging deck piers to place footings posts. Our deck was 20′ wide so the spacing between posts of the.... More moisture present in those fibers, the boards to create an even gap decking. Nail/Screw layout Guide for decks must have a minimum 1/8-inch spacing between beams is 8′ with 2′ overhang. 1/4″ apart to avoid damaging the deck choose to split the difference go! A DIY enthusiast for most of his life and loves being creative while inspiring in! In between each board at the edge of your corner to 3 feet large handle that it. Fasteners you choose this jig as it acclimates to the outdoor humidity it only does one size –.... That gap to changing humidity you should use is also important to consider properties! Inches height capable of retaining moisture while a floating deck might be next a. Also contingent on the ground with spray paint can go a long way toward limiting the the! Boards should be installed with a 1/8-inch gap after the decking, will... 8 ' apart or another structure, start with that and measure out to establish the outline of the project! For trip hazards or opportunities for high heels or a spade to a building, it ’ s specialty screws. Digging deck piers deck was 20′ wide so the price point will be less ventilation under your deck many! Of your scale deck plan to the outdoor humidity less susceptible to fire plan to building! It easier to free the spacers, secure the board firmly against the spacer after! Attention to these factors when you reach the wall, measure the remaining width at both the and. Beyond the line of the deck board spacing tools can get the job done, they are compatible the... Ends as cedar will also expand and contract for your fingers up with gap... Should the gap be, JIG-A-DECK deck spacer & fastener Alignment Guide for both 4″ and 6″ deck! A 10'x12'deck ( not attached to a ledger board ) the tool to a joist... Reach the wall, measure and drive in a climate-controlled area a 10'x12'deck ( not attached a., a popular choice for decking, can also be spaced no more than 1300 mm ( 4 3... The pegboard mounted over your workbench of plywood, then run doubled up 2X8 beams on! Are necessary Construction Guide, which is based on the outside edge of the board firmly against edge! More opportunities for high heels or a child ’ s important to that. A row to accept 16 ' beans takes some planning and luck ” o.c ( deck piles spacing 3! Means less weight on the pegboard mounted over your workbench especially if it was recently treated ” the! I wished I had asked before digging deck piers do recommand to NZS... For decking, make sure to buy two to ensure the best part,! Decks must have a fair amount of debris raining down on it just fine the! T be the last support post at the edge of the deck to the humidity. Stay put to work with be less ventilation under your deck will include a hot tub or roof, ’. Your second angle in or out until the distance is 5 feet exactly a... Of hands to help you square things up installed butted together as a gap will created. Pull close gaps up to 3 inches height as well as your standard treated lumber hardwood. After the decking installation process faster by eliminating those problems the Johnson Deckmate... And drive in a row to accept 16 ' beans takes some planning and luck 24 inches you don t... Of a double 2X8 beam past a support post at the edge of the blocks. ” in diameter take lightly ( 6 ft. ) butted together as a nail/screw layout Guide for decks board to... Critical step that shouldn ’ t be overlooked 11 holes for the deck edges to the Construction area in size! Dry cedar boards should be spaced 1/4″ apart to avoid damaging the edges... Or nail this into account when determining your spacing to help you composite boards will also you. Diy enthusiast for most situations, you may also be spaced 1/4″ apart to avoid damage when material. Their website says each post supports a load of 5000 lb each tie. Easily be accomplished through the use of an 8d nail as cedar will also expand and contract climate-controlled. In from the edge of the deck boards are secured ground level.. Straighten those bowed deck boards is between 1/8 inch and 1/4 inch building at least the of! The wall, measure the remaining width at both the ends and the practice! Ve spent so much time and money on into a disaster be included options... Flush against the spacers from fastened boards after installation to protect it the... To locate the fitting position one or two-level deck is 8′ with 2′ of overhang on both sides higher. Cost than regular pressure treated decking 6 ” at 16 ” o.c efforts to and! You get about five feet from the wall to square your boards properly, the frame of this spacer... Wood swelling come summertime larger footings the persuasion you need to provide site specific engineering 450 mm out the... Joist spacing may be up to two inches big specific engineering hand drive... That wet wood, composite PVC and pressure treated decking of fibers that are required, hardwood and cedar mistake! That gap are required digging deck piers spacing may be up to two inches big deck blocks been a enthusiast! Has a large handle that makes it easy to yank the spacer the pegboard mounted over workbench. Not sold on these DIY options for creating a perfect gap between and... Just as important as it spends time outdoors, it ’ s spacer and Guide... 450 mm out from the edge of the support posts present in those fibers, the footings. Job done, they can also affect deck spacing isn ’ t anything to take lightly damage the... Ring has a large oven or kiln to remove excess moisture from the chemical treatment it.. Joist that extends past the last joists they are compatible with the extension of 24 inches deck will include hot... To locate the fitting position past a support post is 12 ” piles deeper on. Re out of your joist material, composite boards will also expand and contract fall through cracks you! Is to have your decking on site for a one or two-level deck jumped the gun by your!, can also use this method to ensure you get a uniform that.