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How to fix gaps in hardwood floor?

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I plan on refinishing the hardwood floors upstairs. I noticed some large gaps in the middle of the floor, some are 1" or more. How do I fix the gaps before I refinish the floors?

Wow, for a second I thought this was my question I just asked a few days ago coming back to haunt me!
I have the same problem, although the spaces between my floorboards is much smaller – 1/4 inch wide.
I haven’t gotten any good answers yet, although I am hoping someone comes up with a solution to the problem.
So far, someone suggested using rope to fill the gaps!!! Since your gaps are sooo much larger than mine, have you considered buying a plank of similar wood, using paper and a wide pencil to outline the perimeters of your larger gaps and sawing matching pieces of the new wood to fill the old gaps and gluing them in place?
That is what I would do if I had that much gap in my floor boards!!

2 Responses to “How to fix gaps in hardwood floor?”

  1. Craig Says:

    Some gaps can be repaired by using timber color matched bogs which are available from good hardware stores, although they are one solid color and dont have a grain texture you can use a pencil to scribe in some grain lines to match the original. However this is only suitable on smaller gaps and very affective on both the middle and edges of the floor boards, if the damage is large the board may need to be replaced however the obvious problem will be matching the new board gain and color with the originals, when ever im doing these type of jobs I try and repair things before removing them.

    Good luck with the job.

    PS. if you do use the bog remember than when you varnish it then it will become darker, it might be worth using a lighter color or even better making a sample before doing the job.
    References :
    qualified carpenter.

  2. MasterGardner Says:

    Wow, for a second I thought this was my question I just asked a few days ago coming back to haunt me!
    I have the same problem, although the spaces between my floorboards is much smaller – 1/4 inch wide.
    I haven’t gotten any good answers yet, although I am hoping someone comes up with a solution to the problem.
    So far, someone suggested using rope to fill the gaps!!! Since your gaps are sooo much larger than mine, have you considered buying a plank of similar wood, using paper and a wide pencil to outline the perimeters of your larger gaps and sawing matching pieces of the new wood to fill the old gaps and gluing them in place?
    That is what I would do if I had that much gap in my floor boards!!
    References :

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