GapCap

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Stop deck gaps at the source As deck boards expand and contract with the seasons, unsightly gaps open up at corners, fascia joints and stair risers — a headache for contractors and homeowners alike. GapCap covers those gaps with a clean, finished cap that installs in minutes and looks like it was always part of the deck. Sold as a 2-pack. Two styles: TopCap (walking surface corners) and FasciaCap (fascia boards & stair risers). Three angles: 90° square corners, 45° mitered corners, 0° straight joints. Three colors: Grey, Brown, Black — matches composite and treated wood decking. Installs with standard composite deck screws and includes matching plugs for a screwless finish. Works on new or existing decks. Show more