Cut out the damaged section of flooring by locating the floor joist and carefully cutting out the flooring to the center of the floor joist on both sides of the hole.
How to fix a hole in wood sub floor.
We show every step to repair a big hole in the subfloor.
Get your wood glue and apply a generous line around the edges of the opening you routed and then a bead along all for edges of your patch and press it into the opening.
Use a pry bar to remove any protruding nails and vacuum up the demolition debris.
The filler should be level and even with the surface of the wood.
Use a circular saw set to 1 depth to cut the subflooring back beyond the damaged areas until you reach solid structural framing.
Apply the filler to the craft sticks using another craft stick or a putty knife.
All done from the top side.
Make sure there s about 1 8 between the sheets of plywood to allow for wood movement.
The craft sticks will act as a support for the wood filler.
Here s how to go about patching a wood floor in your home.
Apply the wood filler to the craft sticks to fill the hole.
To patch a hole in a wood floor left by the removal of a floor furnace grate such as we had in the kuppersmith project house start by installing floor joists across the opening followed by a subfloor felt paper and flooring.
Remove the floor covering from the area where the hole has developed.
I wanted to use the largest pieces of wood i could fit between the joists under the subfloor to disperse over the largest area possible any weight that will eventually be put on this patch.
Cover that with a few thicknesses of paper toweling.
The first step is to put some dead wood underneath the hole so you have a way to secure the patch.
Once your wood filler is mixed use it quickly.
We removed an old chimney and that l.
Hammer the new piece of plywood in place with 8d common nails every 6 inches being careful that you are nailing into the board you screwed into the floor joist.
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Use the piece of damaged plywood as a template and cut out a fresh piece of plywood.
The i m using two pieces one on each end.
It s pretty easy when you know how.
The home mender dustin luby shows us how to repair that unsightly rot hole in your floor to prepare it for a new.