Sep 09, 2021 1:15 pm
Currently having a crack at sealing some timber flooring that we've unearthed under our carpet. This is radiata pine that hasn't seen the light for 40+ years, and I'll be using one of the Loba water based products to seal it. It's nothing special to look at but with some proper treatment I'm hoping it's serviceable enough
Thanks to some tips that I picked up here, I've been filling some knot holes with a coffee grounds and PVA glue mix, and there's a few others where the centre of the knot has just dropped a bit so I'll put some epoxy in those. Smaller holes will get some timbermate
My question is how's everyone dealing with filling knot holes where the bottom is larger, or the hole is cylindrical such that any filler is likely to just drop through? I have possibly hundreds that are 5-10mm wide that go right through the floorboards (no subfloor underneath).
My only thought so far was to put in a dob of liquid nails, no more gaps or something else of that consistency on the side of the hole and let it droop down and fill it a bit. Then I can add my filler without it dropping right through until it's dried.
I know the I could get under the house and put some physical barrier under each hole but that's a lot of work
Appreciate any genius suggestions
Re: Filling floorboard holes?2
Sep 09, 2021 2:18 pm
Cork - an old champagne stopper or some such thing? Jam them in then cut off with a razor at floor level. Colour with textas or pencils/crayons to colour match your timber/stain. Can glue in if you like. The guy who did my floors years ago did this prior to sanding, staining and sealing, and I've since had to replace some of them using the same method for mostly knots that have fallen out.
For holes larger than the diameter of a champagne stopper, cut it sideways to make it larger or find/buy a bigger piece.
With the taper of the hole being larger at the bottom than the top, just cut the cork larger than the hole and hammer home. Once it gets beyond the smaller hole section it should restore close to back to the original size keeping it snug.
Otherwise if you can get into the crawl space under you can always apply a backing piece to stop it falling through.
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