11/27/2023 0 Comments Trex hidden fasteners prevent bucklingChoose your stock wisely and tell your lumber provider exactly where and how you will be using the lumber. In fact improper installation (eg bad spacing between boards) is one of the most common reasons for problems with a deck installation. A good quality decking board that has been carefully air dried will always be more stable in the long run and the type of fastening you do makes no difference. The key to a successful deck install that will remain stable and beautiful for years to come lies in the wood selection and planning for movement. Really it comes down to personal taste and looking closely at the environmental conditions for YOUR deck. After years of selling tropical hardwood decking we haven’t seen evidence that leans one way or the other that a method is superior. Ultimately with so many variables to consider, one is bound to see a wide variety of opinions on the topic of face screws versus Ipe clip hidden fasteners. Individual results may vary and take some time to think about the environment that your deck will endure. ![]() In general using 2 screws shouldn’t pose too much problem with restricting wood movement and the added stability is something that is more important in this case. The answer to this 1 or 2 screws depends heavily on the width of the deck board, the species, and how much sunlight that deck will actually see. Many will suggest that one screw is placed in each deck board to allow it to expand and contract while others go for 2 screws across the width to prevent any cupping that can come from uneven heating and cooling that is typical with any deck. When face screwing Ipe decking, you can rely on the natural flexibility of the decking boards to secure them to the joists. Moreover, the clips will reference off the joists and if they are not perfectly level then aligning the clip with the groove can be difficult. The fact that the boards can move means that they are free to warp, twist, and open uneven gaps on your surface. ![]() It is this seasonal movement that many hidden fastener critics latch on to as the primary reason for face screwing Ipe decking. The fine folks at Ipe Clip have a very helpful animation illustrating this movement. The hidden fasteners will leave one edge of the board free to expand and contract in varying weather while still holding them firmly to the joists. You cannot avoid drilling through these very hard woods not matter what method you choose since most clip systems still recommend drilling at an angle through the Ipe clip and bottom half of the deck board into the joist below. ![]() This is a small minority of the Ipe and Cumaru decks in the wild however. Of course if you build your entire deck out of Ipe, from posts to joists to decking boards, you will still end up drilling into the harder wood. It seems obvious therefore to spend less time drilling through the hard decking boards and focusing on drilling to fasten an Ipe clip into the softer deck sub-structure. Ipe and Cumaru in particular have been known to burn out many a drill motor. The added density and extreme hardness of tropical hardwoods is very tough on drills, drill bits, and screws. So the question remains: which fastening system do you want to use for your next deck? Photo courtesy of Ipe Clip Ipe Clip and Deck Hidden Fasteners That being said, most of our customers prefer an Ipe clip hidden fastener when using tropical hardwoods for purely cosmetic reasons. Environment will play a major role in how your Ipe or Cumaru deck will perform. Of course, opinions vary wildly from one decking professional to another. Hidden fasteners leave an unblemished beautiful face but most feel they take longer to install and leave the decking free to move about throughout the year. ![]() Face screwing is fast and secure but it leaves exposed screw holes that many find unattractive. Each deck fastener system method has pros and cons. Installing a tropical hardwood deck with a species like Ipe or Cumaru is done the same way as your typical pressure treated Pine or even composite deck: Ipe clip and other hidden fasteners or face screwed.
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