The concrete floor slopes toward a drain behind the wall, leaving about a 1-inch gap under the basement trim. I’d rather not level the floor. What are some practical ways to finish it?
How would you cover a 1-inch gap under basement trim?
Asked by Latchkey
Answers
For an uneven floor, scribe the bottom of the trim to match its shape. Hold the board in place, mark the floor’s contour onto it, then cut along that line. With a gap this large, check that the cut won’t leave the trim too narrow before choosing this approach.
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A taller baseboard could cover more of the gap, and a wider base shoe or flexible PVC trim may help follow the slope. Ordinary quarter round is fairly small, so I wouldn’t count on it to hide a full inch by itself.
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Before closing the gap, make sure you understand why the floor slopes toward that drain and whether water is meant to pass along that area. If you do cover it, choose trim that can handle basement moisture, and avoid sealing a route that may be part of the drainage plan.
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If the gap is too deep for a neat scribed edge, you could use a wider piece of trim and cut its bottom to fit. Test a short section first. It may take a bit of fitting, but it will look cleaner than trying to stack several small mouldings.
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