How to fix a poorly installed floor transition strip
Badly installed transition strips leave uneven lips that catch your shoes and create a brand-new tripping hazard. The resulting gaps also trap dirt, cat litter, and excess moisture when you mop the floors.
What the numbers show
Counted from the threads quoted below. How we count
- The most recent one is from October 2026.
- This comes up 59.9× more often in r/Flooring than across the site as a whole.
What people tried
Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.
Found another way around this?
Share your steps and trade-offs so fellow engineers don't have to reinvent the wheel. No account required.
- 1Replace the transition piece entirely2 people mentionedDid this help you?
- 2Rip a sliver of flooring down and pressure fit it in the gapDid this help you?
- 3Cut the small piece of underlayment outDid this help you?
- 4Paint the gap the color of the wallsDid this help you?
- 5Accepting the uneven transitionDid this help you?
- 6Complaining to the installerDid this help you?
- 7Using a rampDid this help you?
- 8Cleaning up the sill to be flush and flat and adding a doorstepDid this help you?
- 9Using a ripped down piece of ranch casingDid this help you?
- 10Chiseling down uneven materialDid this help you?
- 11Filing a claim with the manufacturer for an inspectionDid this help you?
- 12Cutting losses by returning unopened boxes, buying a different product, and using opened boxes in a garage or studioDid this help you?
- 13using metal strips to coverDid this help you?
- 14using a Z-barDid this help you?
- 15Gluing the transition piece back downDid this help you?
- 16Installing a proper transition strip designed to handle height differencesDid this help you?
- 17Painting the scotia wood the same white as the trimDid this help you?
- 18Wait for the contractor to return and correct the problemDid this help you?
- 19Use a nail set to drive the protruding nails down and apply putty to the holesDid this help you?
- 20Getting washable carpets and putting plants around the home to distract from the bad floorsDid this help you?
- 21installing wood transition strips that float and constantly strip out screwsDid this help you?
- 22making a custom threshold with the same material thick enough to overlap the existing wood on each sideDid this help you?
- 23Buying a replacement transition strip from the hardware store, pulling out the old material from the metal channel, and pressing the new transition into place.Did this help you?
- 24sanding down the bottom of the doorDid this help you?
- 25using wood T molding with PL Premium and nailsDid this help you?
- 26applying glue properly with the correct adhesiveDid this help you?
- 27Using construction adhesive or liquid nails with weight or painters tapeDid this help you?
- 28Cleaning up old adhesive and installing a new piece of transition trimDid this help you?
- 29Asking the original installer to fix itDid this help you?
- 30Paying out of pocket to hire a professional for repairsDid this help you?
- 31Trimming off the existing plywood bullnose so the new nosing sits properly on the riser.Did this help you?
- 32Adding a shim beneath the stair nose to ensure a flush fit and prevent sagging.Did this help you?
- 33Getting extra planks custom bent to fit as flush nosings.Did this help you?
- 34Installing risers on top of the treads to eliminate the need for excessive caulking.Did this help you?
In their words
Unedited, grouped by where they were said, most upvoted first within each place, each linked to the thread it came from.
“Is it supposed to be like a diagonal lay? I clean airbnbs and manage and owners found cheap floor installers.”source ↗
“I asked for a transition that wasn't a trip hazard, but I don't think it looks like a professional job. Am I being too critical?”source ↗
“What kind of glue to use?”source ↗
“Liquid nails construction adhesive is what I use, then put some weight on it or painters tape until it dries.”source ↗
“I'm only just realizing that there's a gap.”source ↗
“It's not super visible but I just see a) collecting spot for alot of dirt and cat litter and b) an entry point for moisture when I mop.”source ↗
“Looks like 2-3 inches high and maybe not perfectly parallel.”source ↗
“Website version vs. in-store sample vs. boxes that have been installed so far today.”source ↗
“they said I can file a claim with the manufacturer (NuCore) but that they won’t be able to do anything until they send someone out to inspect, which can take anywhere from a few days to two months.”source ↗
“they’ll only inspect installed pieces and they’ll do so individually, pulling and replacing only the ones that fall out of whatever the criteria is.”source ↗
“I caught it bc I tripped on the threshold which I have never done there before when it was a flush piece. But its big enough that the tip of my shoe caught it.”source ↗
“Almost looks like you need a ramp for such an uneven transition...”source ↗
“This looks like something I’d do, as an occasional DIYer. I’d be pissed if I paid someone to do this”source ↗
“Just feel like it looks kinda strange with height difference but not enough room for a step.”source ↗
“Is there some sort of plyable material that can be used between the existing surface and whatever I affix there, so I don’t need to chisel/plane/sand that down to flat?”source ↗
“Man I knew I wasn’t crazy these floors looked awful… instead of redoing it because that’s insane I’ll just get some washable carpets and put plants around the home to distract.”source ↗
“of course they float and strip out the screws constantly.”source ↗
“I was moving in some furniture and this happened, this is my first home so i just alerted my landlord and he said he’ll send someone to fix it but we’ll have to handle the cost, and like cool but how much would it have been for me to fix it and is it worth it?”source ↗
“I am looking to DIY fix this gap. As you can see there’s a gap with the tile making the spacing uneven and large.”source ↗
“There previously was a threshold installed that would come up/off when mopping the floors, which was attributed to it only being glued down.”source ↗
“I’m just looking for someone to propose a fix. Not blaming or naming the OG.”source ↗
“Transition of our bedroom to bath had what appears to be a block under the carpet to raise for transition. Before I fix I wanted to get some opinion on best way to handle the fix and what a good transition option is.”source ↗
“Paying an absolute fortune for this flooring and knew that I was getting scotia/beading but is this how it’s supposed to be finished?”source ↗
“After the contractors left, I noticed tiny, sharp metal points sticking out of every piece of transition molding.”source ↗
“There's no consistent pattern to these points. They are very small, but big enough to snag on socks.”source ↗
“Some of them look like staples, some are just single points.”source ↗
“Glue is letting go there’s like a little cracks appearing and spaces between the boards. Also, they did a shitty job on finishing.”source ↗
“This was just a few years ago and cost a lot. Any wise advice?”source ↗
“Currently in a dispute with the installer as I don’t believe these have been installed correctly.”source ↗
“All of the stair noses (except for the one at the top of the landing which seems to be done as an overlap) are slightly sagging/bending downwards and feel hollow underneath if I apply pressure with the ball of my foot.”source ↗
“This seems to be a slip hazard and over time may lead to cracking or further movement.”source ↗
“Did I just get the wrong materials?”source ↗
Where this came up
People with this problem also raised
- 10How to transition LVP flooring to a raised fireplace hearth
- 2How to fix an H-pattern in installed flooring without tearing it all up
- 12How to fix squeaky flooring joints along the wall
- 5What to do about a bad hardwood floor installation
- 2How to install a transition strip without removing the old threshold
- 4Can you install flush baseboards without replacing your floors?