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There’s a gap in my kitchen hardwood floor. Only a single board exhibits the problem. Not sure what’s causing it. Any suggestions for fixing it?

  • screw a small screw into the board next to the gap, and another screw a few boards down, across the gap. wrap a wire loop around the screws, then use pliers or a screwdriver handle to twist the loop, thus tightening it and pulling the gap-facing board halfway across the gap. Fill the new small gap on the other side with a shim, epoxy, etc. remove the loop and screws and fill the screw holes. – dandavis Feb 14 '18 at 20:03
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Cause: maybe there was a machining flaw in one of the boards that prevented them from mating tightly, or the wood shrunk, or the floor installer was hung over. Hard to say.

Solution: none (unless you want to pull up the floorboards and reinstall them). Don't try to fill the crack with wood putty - it'll wind up looking even worse. You'll just have to learn to live with it. Gaps in wood floors are pretty common, and yours really isn't that bad.

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One or two of the flooring boards has shrunk in width since the time of installation of the hardwood floor. There is not too much that can be done to really fix it.

  1. Sometimes it will be suggested to fill the crack with a similar colored wood filler material. For a long crack like that this fix is likely to really be noticeable.
  2. Another possible fix is to cut out the narrow piece and then add another piece of flooring that is wider to take up the gap. This approach is less than optimum because it has to have part of its groove side cut off so that it will fit down into the space. It also depends upon there being a left over piece of the original flooring or finding a similar flooring to get any kind of a match. Such added in piece has to be either glued in or face nailed to keep it in place.

I have heard that one technique for #2 above is to remove an less noticable piece of flooring from some edge of the room to use as the patch. Then replace new over by the edge. The patch can then inherit the look, color and finish of the original floor.

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