Avoid pva or carpenter s glue.
How to make plugs for hardwood floor holes.
This should be done prior to refinishing any.
You may need to make sure the hole is an even diameter.
Plan on losing a cutter to nails.
If you really want to go with round plugs get some 1 1 2 or 2 maple dowels and a forstner bit to match.
It s end grain but that won t be as noticeable as the big round plugs.
Once the adhesive is set and dry the repair is done and can be screened and finished along with the remainder of the floor.
After that match it to the size of your plug cutter.
Use your hole saw or spade bit to size out the original hole.
Don t use just any glue though or it may discolor the sawdust.
Ashlee from build it flip it rent it shows just how easy it is to fill in a hole in an old hardwood floor.
If you can do it steadily enough you ll have a rounded out hole that s exactly the right size for the plug you ll cut.
Once you ve got your plug.