Flooring Transition Strip Installation — Reducers and T-Molding
The new floor stops at the doorway with a raw edge, or the flooring crew left the transition strips in the box. We fit and set them so every doorway is finished and nothing catches a foot.
JMB Builders installs flooring transition strips at doorways and room changes across the Twin Cities metro: T-molding where two floating floors meet at the same height, reducers between tile and LVP, end caps at sliding doors and tile edges, and flush hardwood transitions cut on site. Each strip is fitted to the opening, set on a track or glued and pinned, and trimmed to the casing. Priced per unit, quoted from photos within one business day.
- Priced per unit — each doorway or transition
- T-molding, reducers, end caps, flush hardwood strips
- Quote from photos in 1 business day
- Licensed MN contractor BC809005
A transition strip is the piece that finishes the edge where one floor meets another: LVP to tile at the bathroom door, laminate to carpet at the bedrooms, plank to the aluminum sill of a sliding door. The profile depends on what the two floors are and how far apart their heights are. T-molding bridges two floors at the same height with an expansion gap under it. A reducer slopes from a taller floor down to a shorter one. An end cap or square nose finishes a floor edge against something it cannot overlap, like a slider track or a tile step.
Most are sold by the flooring maker in a matching color with a metal or plastic track that screws to the subfloor, and the strip snaps into the track. The track has to sit centered in the gap and the strip has to be cut around the door stops and casing, which is the part that gets skipped. When the flooring line does not make the piece, or the height difference is odd, we cut a custom transition from solid hardwood, plane it to the two heights and finish it to match.
What you supply
- The transition strips that came with your flooring, or the product name and color so we can order them
- Photos of each doorway showing both floors and the gap
- Whether the piece should be the flooring color, the trim color, or a stained hardwood
What JMB supplies
- Tracks, screws, construction adhesive and pins
- Cutting each strip to length and notching it around casing and door stops
- Custom hardwood reducers or flush strips milled and planed on site when a stock piece will not work
- Trimming the flooring edge straight where the installer left it ragged
- Stain or finish on custom hardwood pieces
- Photos of the finished doorways in your job folder
How it is priced: per unit
Quoted in writing from your photos within one business day. What moves the number:
- Number of doorways and transitions in the house
- Stock strip on a track vs. a custom hardwood piece cut to two odd heights
- Height difference between the floors — a big step calls for a wider reducer or a two-piece build-up
- Cutting around door stops, casing and pocket-door tracks
- Removing a broken or wrong transition first
- Finishing a stain-grade hardwood piece to match
Send a straight-down photo of each doorway with a tape measure across the gap, and tell us what both floors are. That is enough for a firm per-unit quote.
How long it takes
Stock transitions: several doorways in a couple of hours. Custom hardwood pieces: about a day for milling, fitting and finishing.
How your project works
- 1
Send photos, get a written quote
Send three photos of the space and a sentence about what you want. You get a clear, itemized quote within one business day. We only come out to measure first when the job needs a tape measure — no pressure, no games.
- 2
Pick materials, or bring your own
We help you choose profiles and materials that fit the house and the budget, or match your existing millwork exactly — or you buy the door or trim yourself and we install it. Everything is confirmed before the crew is scheduled.
- 3
Clean, precise installation
The crew shows up on time, protects floors and furniture, and installs with tight joints and consistent reveals. Photos of the finished work go in your job folder.
- 4
Walkthrough and invoice
We walk the finished work with you. If anything is not right, we fix it before we call the job done. Then one invoice, paid by check or direct deposit — no card fees, no payment links.
Situations and options
T-molding
A T-shaped strip that sits in a track between two floors of the same height, usually two rooms of the same plank meeting at a doorway. Leaves the expansion gap open underneath.
Reducer
A sloped strip from a taller floor down to a lower one: LVP down to sheet vinyl, tile down to plank, hardwood down to a slab. Overlap and flush versions depending on whether the taller floor floats.
End cap or square nose
Finishes a floor edge against something it cannot run under: a sliding door track, a fireplace hearth, a tile step or a carpet tack strip. Squares the edge off and covers the gap.
Flush hardwood transition
A solid hardwood strip milled to sit flush with both floors, used with glued-down or nailed hardwood where a raised strip would look wrong. Cut and planed on site, then stained to match.
Carpet transition
A tack strip and a metal or wood binder bar, or a reducer tucked under the carpet edge, where new plank meets a carpeted bedroom. Set so the carpet edge is held down and does not fray.
Flooring Transition Strip Installation — Reducers and T-Molding: questions, answered
What is the difference between a T-molding and a reducer?
A T-molding joins two floors that are the same height, like two rooms of the same plank meeting at a doorway. It sits in a track and the T shape covers the gap on both sides. A reducer joins two floors of different heights; it slopes from the taller one down to the shorter one. Use a T where the floors match and a reducer where they do not.
What transition goes between tile and LVP?
Usually a reducer, because tile with its mortar bed sits higher than click-together vinyl plank. The reducer sits on the plank side and slopes up to the tile. If the two happen to be flush, a T-molding or a flat metal strip works. If the tile is much taller, a two-piece build-up or a hardwood piece cut to the step is cleaner than a stock reducer.
Can you install transition strips the flooring installer left behind?
Yes. This is one of the most common calls we get after a flooring job. Send a photo of each doorway and of the strips still in the box. We screw the tracks down centered in the gap, cut each strip to length, notch it around the door stops and casing, and snap or glue it in.
The two floors are very different heights — what are the options?
A stock reducer only handles a small step. Past that, a wide reducer, a two-piece build-up under a stock strip, or a custom hardwood ramp cut to both heights is the fix. In a doorway, the ramp can also be recessed under the door so the door still closes. Send a photo with a tape across the step and we will say which one fits.
Do transition strips need a track or can they be glued down?
Strips from a flooring line are made for their track: the track screws to the subfloor and the strip snaps in, which lets a floating floor keep moving underneath. Gluing is for solid hardwood transitions on a nailed or glued floor, and for a slab where there is nothing to screw into. We use whichever the floor calls for, and pin the ends so they do not lift.
Can you make a transition that matches my hardwood floor?
Yes. We cut a strip from solid hardwood in the same species, plane it to sit flush with both floors or slope between them, and stain and finish it to match. It is the right answer for site-finished or nailed hardwood where a stock plastic-tracked strip would look out of place.
Get a written quote for this job
Three photos and a sentence is enough. You hear back within one business day. Or text the photos to 763-204-2099.
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Read morePage reviewed September 24, 2026 · JMB Builders LLC, MN license BC809005 · All finish carpentry pages
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