How to Fill Pipe Holes in a Hardwood Floor: 4 Easy Steps

When working on a hardwood floor in an area that was previously covered with a radiator or a plumbing system, there will often be multiple pipe or conduit holes in the floor that you’ll have to repair.

Luckily, this is a relatively easy fix. You can fill up pipe and conduit holes using wood plugs that are the same size as the holes and the same wood species as the existing floor.

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Here’s how to repair a pipe or conduit hole in a hardwood floor.

Step 1: If the holes penetrate through the subfloor, install a new subfloor base to fit beneath the wood plug. Need to stock up on wood plugs? We stock plugs in bulk for various species.

Step 2: Vacuum any debris in and around the hole.

Step 3: Line the bottom of the hole and the sides of the wood plug with 3M Epoxy using a mixing nozzle and application gun.

Using a 3M Scotch-Weld EPX mixing nozzle will ensure that you obtain the appropriate mixture of A/B material in the adhesive.

Step 4: Line up the grain of the wood plug with the rest of the floor, and secure it using a hammer handle or wood plank. Let the adhesive dry.

Once the adhesive is set and dry, the repair is done and can be screened and finished along with the remainder of the floor.

For more information on repairing conduit and pipe holes in hardwood floors, call City Floor Supply at (800) 737-1786 or email info@cityfloorsupply.com. If you’d like more information on the products used in this guide, click the links above or give us a call.

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