I have a 5/16" bomb crater in my laminate floor. NO idea how it got there.
Yes, I know I can replace the whole board, but it occurs to me that it might be possible to repair it using a drill and a plug cutter.
E.g.
With a 1/2" hole drill a hole through the existing crater.
With a 1/2" plug cutter, cut a plug of similar laminate.
Apply a layer of PVC glue to the plug, and insert.
Gotchas:
- Do the plugs and hole drill match?
- Will the plug sit flush with the top of the laminate? (If there is going to be an error, better that the plug be a few thou low.
- Will the edge of the plug chip as it's driven in?
- Will the glue cause the midboard to swell too much?
Check by doing an plug and repair on a board not in the floor.
- Will the drill skitter on the surface of the flooring.
Check, but probably I'd use another piece of laminate big enough to stand on with a half inch hole pre-drilled in it.
- What kind of bit?
Either a brad point or a forstner bit — something that gives close to a flat bottomed hole.
So:
Q1: Is this a workable way to make a repair?
Q2: What can possibly go wrong?
Best Answer
Sounds like a workable way to make a repair, but the circle is going to be visible for sure, and is that really better than having the divot to begin with? That's up to you... Assuming this is what you want to do:
A plug cutter labeled 1/2" will cut a hole that fits into the hole that a 1/2" drill bit creates. A plug cutter is measured by the outside diameter of the plug, and a drill bit is measured by the inside diameter of the hole. The caveat is that your drill bit may wobble and not make a great, tight hole.
Laminate flooring typically has some type of pad or underlayment or something between it and the subfloor. So, you'll need to match the thickness of this underlayment (assuming you also tear out a hole of the underlayment when you drill) so the plug doesn't sit too low. You can use this to your advantage and use layers of paper or something to make it sit exactly as high as you want.
I don't think it will, but depends on the floor. Some have a more vinyl-like top, and some have a more brittle wood-feeling texture. Put a flat object bigger than the diameter of the hole on top of the plug and hit that to press in the plug rather than hitting the plug directly. This will drive it in as evenly as possible.
Don't use a polyurethane glue like "Gorilla glue" that expands as it drys and there shouldn't be an issue. Wood glue is probably best - PVC glue is going to be super messy and will eat/discolor the surface layer almost immediately.
I like the plan of using the scrap plank. Make sure it has a good tight hole in it.
A hole saw in 1/2" might be hard to find, and probably wouldn't make a clean cut. A brad point or Forstner is good but still might be hard depending on the underlayment and if there's a concrete subfloor.
The hole you drill in the existing floor could be sloppy. Then your only choice is to make a bigger hole and try to do it better. Practice on scrap before hand.