Fill gap between subfloor and wall


Old 11-25-16, 07:18 PM
Thread Starter
Join Date: May 2015
Location: USA
Posts: 266
Received 0 Votes on 0 Posts
Fill gap between subfloor and wall

Im working on a bathroom and removing the laminate flooring to put in vinyl. When i took the planks out i noticed that the subfloor had a large gap. What had happened is they placed a second sheet of plywood over the original subfloot but failed to fit that sheet to the wall. I have about a 3/4" gap that I want to fill and dont know what the best scenario would be. If I just put the vinyl, it will sonk and the baseboards wont cover that gap.
Old 11-26-16, 01:31 AM
Marq1's Avatar
Join Date: Sep 2016
Location: USA MI
Posts: 7,142
Received 462 Votes on 430 Posts
Pull out and replace.

Rip a slightly smaller piece and glue.

Double up one baseboard.

Agree, you probably need something to keep it level.
Old 11-26-16, 04:13 AM
czizzi's Avatar
Join Date: Jul 2007
Location: USA
Posts: 7,388
Received 15 Votes on 13 Posts
Usually a fresh piece of 1/4" underlayment grade ply is put down to give a super flat surface for the vinyl to sit on. This prevents the telescoping of imperfections through the vinyl to visible from the surface. In that case, fill the void with a cementatious patch before laying the ply.

Thread Tools
Search this Thread
Ask a Question
Question Title:
Your question will be posted in: