This is a new hardwood floor that is next to my slate stone flooring:

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The cut was nice and there is about an inch gap in between:

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My hardwood floor guy recommended to just leave it like that and not fill with grout.

Is it a good idea to leave it alone like that? And if so, would it get dusty and even broken at the edge over time?

If I fill with grout, would it look ugly? Maybe due to color mismatch with the old grout?

Any other idea or suggestion?


  • Typically you'd make a cut like that with some particular transition plan in mind. Random cuts at random widths don't leave you with a lot of great options. at this point I think your best bet is a custom curved T molding, as thin as possible and supported across the gap.
    – isherwood
    Commented Sep 8, 2018 at 14:11
  • And your hardwood floor guy is not very good at what he does. That's a truly unprofessional suggestion.
    – isherwood
    Commented Sep 8, 2018 at 14:18
  • 2
    You learn something new every day, and here's what I just learned. Flexible T moldings exist that can be stained like wood. For example.
    – isherwood
    Commented Sep 8, 2018 at 14:21

1 Answer 1


That is not acceptable finished work and the hardwood floor installer should deal with it. There are many options for finishing that kind of transition and leaving a 1” gap with the subfloor exposed is NOT one of them.


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