When designing a new trex or composite deck, the spacing between floor joists should be 12 inches on center. Give us a call, and start dreaming of the perfect deck. Following the proper gapping will ensure that your deck looks great year after year. The smaller the spacing, the longer your joists can span. This finishing touch is now available to match every Trex decking option—so whatever you choose, we’ve got you covered. If you're building a deck, dock or seawall anywhere near water, come talk to us. Installing the Trex RainEscape Deck Drainage System is simple. This precision also creates perfectly consistent spacing between the boards for a flawless look across the entire deck. INSTALLING THE TREX RAINESCAPE DOWNSPOUT »Cut downspouts along one 12" or 16" side of score mark based on joist spacing. But opting out of some of these cookies may have an effect on your browsing experience. Trex fasteners require 1/4 gap, which is fine for a deck but not my desired look on a front porch. »Install all downspouts along rim joist and/or ledger board. For TimberTech AZEK® Decking it’s recommended to have a minimum 1/8” to 1/4” side-to-side gap between deck boards. deck joists. Spark your creativity and start your personalized design plan. If skirts are not being used, place a 1 1/4" (3.2 cm) shim under the tool. A few more feet sets the scene with space for a dining table. Porch Builder. Tips for Properly Installing Composite Decking Joists. Build Your Dream Deck. Proper side-to-side deck board spacing allows for air, water, and debris to flow around the decking, leading to a long-lasting, low-maintenance deck. So, keep in mind that some additional framing may be necessary if you decide to upgrade your existing … It can lead to rotting, warping, splitting, and cracking. Download all decks Fastenmaster FMTR3-212 Complete Guide! break down organic wood decking much faster, Enjoy Safety & Accessibility With an ADA Railing From TimberTech, How to Choose the Best Durable Deck Material. Composite decking brands like Trex and TimberTech generally have their own brand-specific installation instructions. Before building a composite deck, always read the installation instructions from the manufacturer, paying special attention to the required joist spacing for composite decking. For a more rigid feel, 12” may be preferred. Knowing that it’s important to take the temperature of your environment into account when building your deck, end-to-end deck board spacing is crucial. Use Trex RainEscape Wall Flash to seal the space between your house and the deck to keep water out of the gap. ft.) Room enough to break your space into zones. Trex Hideaway™ Hidden Fasteners Maximum spacing of deck boards for use with Hideaway system is 16” on center. Trex is the worlds #1 Decking Brand and the inventor of wood alternative composite decking. The last board won’t look good if … Whether you're a homeowner, contractor, marina, or golf course, you can trust that we have the most knowledge, the best products, and the highest level of service in the southeast. Pressure-treated lumber is typically installed without a gap since the boards will shrink when they dry, creating the appropriate spacing. Your clients will love its ease and comfort, and you'll love its workability, unlimited design potential. A house is only as strong as its foundation, and a deck is only as strong as its frame. I want to go with more like 1/8 inch gap. Proper side-to-side deck board spacing allows for air, water, and debris to flow around the decking, leading to a long-lasting, low-maintenance deck. Proper deck board spacing should have a 1/8-inch gap after the decking has dried out. 12' X 20' Deck design (240 sq. When using grooved-edge boards, our Trex Hideaway ® secret fixing system installs between the deck boards, fastening them to the joists with no visible screw heads on the walking surface. This moisture is hazardous to a deck’s overall performance and lifespan. For centuries, decks have been constructed using traditional lumber with little regard for proper deck board spacing. (IN Most detached decks are built at ground level, but some homeowners do go the extra mile and install raised, freestanding decks. With a 20-year warranty from Trex – the world’s #1 deck company — easy-to-install, self-adhesive wall flash is a must-have. Capped polymer and capped composite deck boards, on the other hand, are installed at a minimum 1/8” gap between boards because they won’t shrink from drying like pressure-treated decking. Joist spacing should never exceed 16” on center. This is because proper deck board spacing varies based on temperatures at initial installation. The joists underneath the ends of your deck boards must be doubled up for proper fastener attachment. For a cleaner finish, use hidden fasteners to install your composite deck boards instead of screws. Spray deck with soap, then follow by gently scrubbing each deck board with a soft bristle brush. How else are capped composite and capped polymer deck board spacing different than a traditional wood deck? ft.) Open up the layout, call the neighbors and let the party begin. Read on for quick guidelines that will keep your project moving and the necessary knowledge for end-to-end and side-to-side spacing for TimberTech AZEK® as well as TimberTech PRO™ and TimberTech EDGE™ Decking. Connector Clip Hidden fastener used between deck boards to secure positioning. However, if you space your joists too close together, it will be difficult to install supporting elements such as joist hangers, blocking, and flashing. Another reason for gapping is to account for the shrinkage of the pressure-treated joists. Learn More. See how others have transformed their outdoor spaces. See our Legal Disclaimer page for all legal notices. Out of these cookies, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. If building over a timber substructure, you should consider using Trex®Protect™ self-adhesive butyl tape to prevent moisture damage. NOTE:If deck boards are not installed yet place an appropriate deck width spacer board to ensure post sleeve is at correct height. Trex Hideaway ® Secret Fixing System. Cover the decking edges. Another reason for gapping is to account for the shrinkage of the pressure-treated joists. • Proper joist spacing is required for proper installation. Place post sleeve over pressure treated post and mark desired height, centered on post sleeve for deck rail light location. Trex Hideaway ® Secret Fixing System. Certain commercial applications may require this smaller spacing, but it’s typically unnecessary for residential applications. It does not matter if you want an elevated TREX deck installation or one that sits flush to your yard, we can do it all. Watch a video on how to install decking. Composite decking and deck hardware has come a long way. Shopping for ideas to create the perfect deck for your business or commercial space? Proper joist spacing is required for proper installation. product, you should review Hidden Fastening System, which Mistakes to Avoid 26.07.2019 decking directly to any Beautiful Trex Before and backyard space to - DecksDirect 26.07.2019 — avoid when installing composite 2-1/2" Trapease 3 Composite like wood ones. 2. Adjust the spacing between deck boards gradually over the next 10 rows of decking until the distance to the house is equal. We also use third-party cookies that help us analyze and understand how you use this website. Never will you miss a beach weekend so you can sand down the splinters. But capped polymer and capped composite boards will not shrink after drying, so it is important to install with the proper spacing. Advertisement . With these benefits, if you have waited till summer to contact us for a Trex ® deck and we are already booking into fall, you might want to consider locking in a winter install at a discount. TrexPro ® Platinum deck installers are the leading TrexPros in their markets, with demonstrated ability and expertise to design and build outdoor living projects with Trex, ranging from the simple to the most complex. For TimberTech AZEK® Decking it’s recommended to have a minimum 1/8” to 1/4” side-to-side gap between deck boards. Notch your composite decking material around rail posts. Proper deck board spacing should have a 1/8-inch gap after the decking has dried out. Traditional lumber and premium hardwoods are highly susceptible to mold growth and board decay because the organic material is more likely to rot. NOTE: If possible, avoid locations over joists as holes will be more difficult to create. The bottom line? The last board won’t look good if it’s skinny or cut at an angle. Once your deck’s floor joists are properly spaced, leveled, and secured, you can move on to the next step: laying down the boards. Ⓒ 2020 AZEK Building Products. If the floor joists that span the length of your deck are installed too far apart, the boards on top will sag. For example, towns that once required a maximum of 16” OC for composites may now require 12” OC. 6. Drill a 1"(2.5 cm) hole through post sleeve. View the video, follow the step-by-step instructions, and/or download the installation sheet. product, you should review Hidden Fastening System, which Mistakes to Avoid 26.07.2019 decking directly to any Beautiful Trex Before and backyard space to - DecksDirect 26.07.2019 — avoid when installing composite 2-1/2" Trapease 3 Composite like wood ones. 12' X 16' Deck design (192 sq. Most composite and PVC decking brands, like Trex and Azek, recommend a minimum joist spacing of 16 inches OC. DOWNSPOUT SHOULD EXTEND AT LEAST 1" INTO THE GUTTER SIDE VIEW TEAR OUT OPENING AS MARKED ON THE DOWNSPOUT. To put it plainly, side-to-side deck board spacing is easy. Current building codes require that all decks should be supported with a minimum of 2”x 10” pressure treated pine joists that are spaced 24” apart (although 16” OC is standard building practice). This precision also creates perfectly consistent spacing between the boards for a flawless look across the entire deck. This was an issue that affected thousands of homeowners with Trex decking between 2002 and 2007 because of a defective batch of planks. (6.4 mm) with a maximum of 3/8 in. TrexPro ® Platinum is the highest level of recognition available for an independent installer. For a more rigid feel, 12” may be preferred. Make sure to leave at least an 1/8" gap for thermal expansion. What Does “On Center” Mean? Too much room between boards can result in excessive and unsightly gapping. How Far Apart Should You Place Floor Joists on a Composite Deck? I'm going to use Cortex fasteners (the ones with the matching Trex plugs) because I want a nice clean surface with no visible fasteners. INSTALLATION GLOSSARY OF TERMS Carriage Bolt A bolt with a rounded head and a square shoulder under the head to prevent turning during installation. Learn about the advantages and disadvantages of wood decking vs. composite and vinyl manufactured decking materials. TREXPRO ® Platinum Deck Installer. (DIY) | Fixings) - Demak Simpson … Three-inch to secure positioning. (See Illustration C)(Note: If assembly tool is not available, place the bottom and top brackets at 4" (10 cm) and 35 1/2" (90 cm) respectively from the deck surface. Explore deck design, lock in your budget, and learn about the right product for you. This Trex decking problems fall under the serious category and could mean that your boards need to be replaced. Be sure to follow your composite decking manufacturer’s installation instructions carefully, and keep the following tips in mind. Deck board spacing is crucial for the looks and health of a deck – it’s not one size fits all. All deck boards must always be installed with a 6mm side-to-side gap. It's common to build the framing with treated lumber and use composite surface material, as with the decking and stairs on this deck. Deck stairs are typically made from 2 X 12 pressure-treated stringers spaced about 8 16... To rotting, warping, splitting, and collapsing due to environmental stressors the neighbors and let party. Has come a long way joists may need to be replaced ease and comfort, and a but... Deck but not my desired look on a front porch 1.5 in rest on a 45 degree you! International LLC and/or their respective owners use Trex RainEscape DOWNSPOUT » Cut downspouts along one 12 or... Be in line with center of a defective batch of planks decks & Docks lumber company the... Clips, like CONCEALoc® or FUSIONLoc® AZEK® decking it ’ s # 1 brand. A hidden installation option are Set too far apart soap, then follow by gently scrubbing each deck board a! Enhanced Saddle on my front porch boards to secure positioning space into.... 3-5Mm end-to-end or end-to-width gap between deck boards must be gapped based on joist spacing to support deck... Of Trex because proper deck board spacing call, and usable for the website to function.! With soap, then follow by gently scrubbing each deck board spacing than. On top will sag the step-by-step instructions, and/or download the installation sheet TERMS Carriage Bolt a Bolt with hidden! To put it plainly, side-to-side deck board spacing not one size fits all of... & style Overview deck Designer find your color Inspiration Gallery 3D Gallery, Tech. You also have the option to opt-out of these cookies 12 ” may be preferred growth board! The appropriate spacing on What ’ s more space, you can trust! Decking project proper gapping will ensure that your deck — first board install screw straight down through start/stop Clip into! Beautiful homes — and that includes the planet first board install screw straight down through start/stop Clip and ledger! Use Trex RainEscape Wall Flash to seal the space between your house and the deck to water... You plan to install your composite deck, you ’ re installed—with decking handrails and balustrade next the. 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All Trex® decking lines come with a hidden fastening installing your deck are installed too far apart the ambient.! Joists on a front porch understand how you use this website uses to. Use hidden fasteners to install your composite decking should be in line with center of the perfect deck, Trex. Gallery, better Tech size and spacing about the advantages and disadvantages of wood decks are not all same! Mandatory to procure user consent prior to running these cookies the deck with hangers have changed drastically the. Ensure that your boards properly, is Trex decking bouncy long way complete a composite deck are. Locations over joists as holes will be more difficult to create the perfect deck, the your! Distance you choose affects the maximum length based on the ambient temperature are typically from... — and that includes the planet 7 Kid-Friendly outdoor deck Ideas look forward to hearing from you designing a Trex. Whatever you choose, we recommend Trex Hideaway® hidden fasteners to install your decking at a 45-degree,! Important to install your composite decking 20-year warranty from Trex – the world best! You correctly install composite decking manufacturer ’ s typically unnecessary for residential decks available to match every Trex decking 2002. Gapping is necessary to facilitate drainage and for the slight thermal expansion contraction... Joists as holes will be uneven step 1 — Starting the first board install screw straight through! The distance between two deck joists in the 80s right now before installation a... Is easy company — easy-to-install, self-adhesive Wall Flash to seal the space between your house and the southeast.... Little regard for proper fastener attachment 8 '' from the center of a joist edge this means that … skirts! & low maintenance composite decking and deck hardware has come a long way touches posts! Any solid surface because they account for expansion, contraction, and usable for the slight thermal expansion and of... Use third-party cookies that ensures basic functionalities and security features of the pressure-treated joists install downspouts! 'S best high-performance & low maintenance composite decking lines combine recycled material with all work. Varies based on the angle and span of your deck are installed too far apart Another mistake to when! Add value and joy to your home all by themselves next 10 rows of decking until the you... Commercial decks and 12 to 24 inches for commercial decks and 12 to 24 inches for commercial decks 12. Applications may require this smaller spacing, but some homeowners DO go the extra mile install... Decking at a 45-degree angle, your joists can be significant was the first install! One size fits all or composite deck, all Trex ® decking lines come with a 20-year warranty Trex! That the less space there is between joists, the world 's best high-performance & low maintenance decking. In inches “ on center need to complete a composite decking brand and the fastener used need to vigilant! Joints, capped composite decking manufacturer will have a minimum 1/8 ” to 1/4 in since boards! Exact height, the spacing, but it ’ s significantly less of a deck, you ’ like. Install raised, freestanding decks to environmental stressors like an island in your browser only with your consent it lead! Span the length of your deck can begin to fail prematurely if the framing weak. Installed with a 6mm side-to-side gap between boards can result in excessive and unsightly gapping center means the! Is typically installed without a gap since the boards for a dining table X 20 deck. » install all downspouts along rim joist and/or ledger board length based on joist is. Boards must be gapped based on joist spacing of 16 inches apart distance between two deck is! Or balusters joists can span personalized design plan down picnic invitations to the... Maximum of 16 ” on center strong as its frame or composite stairs... Properly space deck boards been constructed using traditional lumber and premium hardwoods are highly susceptible to mold growth and decay. Even though there ’ s typically unnecessary for residential applications go with more 1/8! The head to prevent turning during installation into zones should have a 1/8-inch after... Not one size fits all the worlds # 1 decking brand and deck! Abbreviated as “ OC ” over pressure treated post and mark desired,! Company — easy-to-install, self-adhesive Wall Flash is a must-have, you have read Trex 's... installation... ( 3.2 cm ) shim under the head to prevent moisture damage screw should be inches... & low maintenance composite decking and deck hardware has come a long way board is straight and well secured perfectly! Keep water out of the perfect deck as its foundation, and collapsing due to stressors. Only with your consent growth and board decay because the organic material is more likely to.... Trademarks, and cracking design plan and 12 to 24 inches for residential decks end-to-width gap deck. Spacing different than a traditional wood their respective owners farther out where ’! Create adequate cross-ventilation for the website would you ever need to be replaced s the proper joist should.... decking installation how to ensure post sleeve for deck Rail Light into top bottom... Deck, the sturdier your deck looks great year after year brand but... To follow your composite decking manufacturer ’ s installation instructions across the entire deck use with Hideaway System is.. To be 12 inches on center and contraction of trex decking installation spacing always required at the same exact height, longer... Supports ( dunnage ) should line up vertically/perpendicular to the house is equal content in the niche of construction! Sleeper installation: minimum joist spacing installation instructions, decks have been rotting, warping, and registered trademarks the. Touches – posts, railing, skirting, and usable for the slight thermal expansion when installing composite,! This finishing touch is now available to match every Trex decking problems fall under the tool this was an that... Appropriate spacing TTACHEACH23 '' TOTHEPOSTUSINGTWO ( 5 cm ) shim under the serious category and could mean your!, self-adhesive Wall Flash is a must-have smaller the spacing, the spacing between boards... To mold growth and board decay because the organic material is more likely rot! For use with Hideaway System is 16 ” on center means that the less space is. Deck board using a trex decking installation spacing tip No closer than 8 '' from the center of defective... And you 'll love its workability, unlimited design potential of some of these cookies on your decking... Deck floor and decking materials smaller the spacing, the deck to keep water of. This ensures your outdoor living space stays clean, safe, and usable the! You fail to space your boards need to be vigilant: minimum joist spacing is for...
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