composite decking gap between boards

As long as the space left is big enough for adequate drainage and board expansion in the heat, and the gaps are exactly the same size to give a uniform finish, the gap size is an aesthetic decision. Deck floor board spacing gaps: Proper gap size to leave . Settling for a screwed down composite deck is yet another common mistake to avoid. Attaching decking to the support framing boards below with screws has been the method of choice for deck builders for many years. Give it Dry Time – If you have the time and a place to keep the wood out of the elements, give it two or three weeks to dry out before installing. My deck has so many coats of paint the gaps between deck boards are completely filled in. Decking around an inside rail post. The #1 reason that decks fail prematurely is not from too much weight, per say, but rather from the deck’s ledger board being incorrectly fastened to the frame of the house. Again, a little extra effort here can go a long way to making your composite deck feel sturdy and secure for years. The extreme climates now experienced in many parts of the country demand that anything built outside must be made from rugged materials able to withstand sub-freezing temperatures, heavy snow, wind-driven moisture, and extended periods of high heat and humidity. Extreme freeze/thaw conditions can wreak havoc on concrete footers if they are not installed below the frost line. It is stain and fade resistant, mold and mildew resistant, and is available in the colors and deck railing options you want. Going more than a ¼” may get a little too wide. DuraLife composite decking products are uniquely manufactured with a super-strong, co-extruded polypropylene outer shell that forms a “force field” around three sides of the board. The good news for homeowners is that unlike most composites, DuraLife® hardwood composite decking products can be installed between 20” O.C. Here in Maine, that can be 48” or more. With plastic clips a board gap of 5mm is ‘normal’ and allows for screws to be extracted even when the boards are in place. In this situation, we had to cut down the last 2 boards to the same width to fill a 7" opening to prevent the final strip of decking from being too narrow. DuraLife Step-Clip™ composite decking hidden fastening system, DuraLife’s ColorLock™ Multi-Layered Finishing System, outperform all other wood and composite decking products, Why DuraLife Is the Go-To Eco-Friendly Brand Built to Last, The Benefits of Building Composite Decks in the Fall, How Much Does Composite Decking Really Cost, DuraLife’s Step-Clip Decking Earns Top Spots Across Industry Publications, What Composite Decking Is Really Made of and Why It’s Better Than Wood, 4 Challenges That May Delay the Deck-Building Process, 9 Things to Consider Before Replacing Your Deck, 5 Ways to Plan Your Perfect Deck Right From the Comfort of Your Couch, How a New Deck Can Increase the Value of Your Home. This article is made possible by DuraLife. When fastening, always leave a 1/8” gap between the top of the fascia and the bottom of the deck boards. The Sweet Spot – Most people agree that 3/16” is a good gap between boards. Securely attaching your decking boards to their frame to create a solid and stable surface, the fasteners reduce alignment time […] Like real wood, composite boards will also expand and contract as the humidity changes. Any small investment in additional framing material will be well worth the increased stability you’ll experience for the lifetime of the deck. Raw Materials and Manufacturing Processes Matter. Timber deck boards require a 5 to 8mm expansion gap along the length of the deck boards and a 3mm gap along the ends of the deck boards. It’s just not a great look. Wood Composite deck boards are subject to expansion and contraction when exposed to variations in temperature. Installing concrete footings at the correct depth allows the footing to absorb the expansion and contraction of the material surrounding it as it freezes and thaws without causing the footing itself to shift – taking the deck with it. So, keep in mind that some additional framing may be necessary if you decide to upgrade your existing pressure treated wood (PT) deck with a high-quality composite material. More solid and safe under foot, DuraLife decking is backed by a 25-year warranty. Cumaru Deck Board Gapping – Allow a minimum of 1/8" gap between board widths on 4" wide decking, and 3/16" gap between board widths on 6" wide decking for drainage, airflow and expansion. DuraLife Step-Clip™ composite decking hidden fastening system can reduce installation times by up to 50 percent. Ensure there is a minimum gap of 5-6mm between each deck board. DuraLife’s unique polypropylene and hardwood composite decking materials simply outperform all other wood and composite decking products. The BAL is a special clip designed to give a 2-3mm gap between boards as required in a high bush fire zone. Another mistake to avoid when installing composite decking is spacing the joists too far apart. It is important to leave gaps between boards when installing your composite decking, but the size of the gap you choose can vary. Of course, prime deck-building season is during summertime, when the high humidity levels throughout much of the U.S. dictate that wood width is as swollen as it will be at a… Having a proper gap between boards is very important. Air-dried decking can often be installed with a gap less than 1/4 inch (6.5 mm) because the boards will likely end up shrinking in width rather than expanding. Another common mistake that should be avoided is improper installation of concrete footings. Whether to leave a gap between pressure treated wood deck boards depends on how dry the wood you’re using is. One of the most critical steps for properly securing composite decking in place is to make sure you have a 1/4-inch to 3/16-inch gap between the decking boards (don’t exceed 1/2 inch). Get Samples, try our Composite Deck Visualizer, or contact DuraLife now to learn more. Bear in mind when planning your deck that the length of the Wickes range of composite decking boards is 1.8 or 2.4 metres. These board inserts only work with 6 … There should always be a slight gap. Installation & Maintenance. Remove old filler material, dirt or debris from the gaps between the boards with a scraper. The most common mistake we see with fascia installation is the practice of extending the fascia to cover the ends of the decking boards. When installing UltraDeck® decking, gapping guidelines must be followed to ensure that gaps between decking and end gaps allow for proper expansion/contraction, drainage, and the shrinking of treated wood joists that can happen over time. If you have poor ventilation, wider is always better. With composite decking you have to create the gap right from the get go. Create adequate ventilation for the deck by widening side-to-side spacing between boards to ¼ inch (6 cm) with a maximum of 3/8 inch (9.5 mm) gap. Plan accordingly based on how dry your decking is. Notch your composite decking material around rail posts. When deck boards are too tight, water will not be able to drain, causing the wood to rot over time. First, ensure that the deck boards are aligned properly. As with any lumber, minimizing exposure to moisture is key to maintaining a solid, strong bond with the home. How much of a gap? Super Deck hidden fasten clips will allow a minimum 5mm gap between composite boards (side to side) to ensure proper drainage and ventilation and to assist with the removal of small organic debris. Get into the nitty-gritty details of all side-to-side deck board spacing requirements in our official and detailed installation guides for each decking line (AZEK, PRO, EDGE, and specialty decking). That’s why most professional builders agree that building a deck with high-quality composite decking materials is the ideal choice. Remember to factor all necessary expansion gaps into your plans. 5/4 x 6 is produced specifically for decking and is milled with a radius edge or bull nose. Now that you know the differences between composite deck board profiles and the available fastening options, you’re ready to see and feel our nature-inspired decking for yourself.

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