How to cover the gap under kitchen cabinets
Large gaps measuring up to an inch wide between the floor and kitchen cabinets let in dust, spiderwebs, and insects while making countertops constantly dirty. Without baseboards to block these openings, homeowners are left trying to figure out how to seal them up.
What people tried
Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.
- 1Pushing backer rod into the gap and applying flexible caulk over it
- 2Installing quarter round molding
In their words
Unedited, grouped by where they were said, most upvoted first within each place, each linked to the thread it came from.
r/homeowners1 person · October 2026
r/Flooring1 person · September 2026
“I got varying gaps between some 0.25 inch to may be close to an inch. This is under kitchen cabinets. There is no baseboard there.”source ↗
Possible_Bug7513 · r/Flooring
Where this came up
People with this problem also raised
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- 2How to install vinyl flooring around a base cabinet without molding
- 5How to seal a gap under a glass door
- 2How to caulk baseboards with no room for a caulking gun
- 4How to seal window gaps around an air conditioner against insects
- 7How to fix gaps under door jambs after new flooring