Gaps in wood floors
I have gaps up to 1/4″ in some old pine flooring planks on a stairway.
I sanded, stained and polyurethaned them, but now there is white color between the gaps.
Should I clean out the gaps and poly and then use lexel/caulk/filler?
Or clean out gaps, then lexel/caulk/filler, then poly?
Or clean out haps, poly and just leave it?
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I would go with clean the gaps, poly and leave it. Anything that would stay in the gaps would have to be flexible and in my opinion would look worse than the gaps. Gaps are an authentic look for old wood. Between the seasonal movement of the wood and the flexing of stairs anything rigid would crack and fall out.
That's a great analysis and recommendation -- and exactly what I'll do.