Spacing Between Deck Boards Trex. Hidden fastener used between deck boards to secure positioning. » if you want to minimize the appearance of joists through the spaces between boards, paint the top of your joists black. The majority of composite deck board brands including trex, timbertech, and more require deck joists spacing to be at 16 inches o.c.
Trex, or any other composite decking has to be spaced!!
Deck board spacing/deck spacing between boards depends on when they are installed. Are there any concerns with installing this way? » if you want to minimize the appearance of joists through the spaces between boards, paint the top of your joists black. Composite decking is a great alternative to traditional wood decking, but does have some limitations. Distance a joist spans between a beam and a ledger or between beams. That's why stretching a string across the joist spacing for composite deck boards can help detect spots that may be higher than others. Time will vary limiting joist movement also helps prevent gapping between deck boards for a uniform finish. How to space deck boards.