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Crown Molding on Kitchen Cabinets and Light Rail Installation

Your uppers stop short of the ceiling, or the under-cabinet lights show from the table. We add the crown and the light rail so the kitchen reads as finished.

JMB Builders installs crown molding on kitchen cabinets and light rail under the uppers across the Twin Cities metro. We screw a nailer strip to the top of the cabinet boxes, run one-piece crown or a stacked crown and riser to close the gap at the ceiling, miter every cabinet return, and fit light rail flush to the bottom rails to hide under-cabinet lights. Priced per linear foot, quoted from your photos within one business day.

  • Priced per linear foot of crown and light rail
  • Nailer strips and stacked crown to the ceiling
  • Quote from photos in 1 business day
  • Licensed MN contractor BC809005
Kitchen with oak upper cabinets and oak-cased windows over the sink

Stock cabinets come with a flat top rail and nothing under the bottom. Cabinet crown closes the gap to the ceiling, or caps the boxes when the ceiling is higher than the crown will reach. Light rail is the small strip under the uppers that hides LED tape or puck lights and the bare edge of the bottom panel. Both come from the cabinet maker in a matching finish, or we use paint-grade stock when the doors are painted.

The part that goes wrong is the attachment. Crown cannot be nailed to the thin top of a cabinet box, so a nailer strip gets screwed down first and the crown is nailed to that. With a stacked crown, a flat riser board goes on first and the crown sits on it; the riser is what gets scribed to a ceiling that dips. On light rail, the joints land at the cabinet seams so they disappear, and the rail is set back enough that the doors still swing clear. Painting is quoted as a separate line, or leave it primed and caulked and paint it yourself.

What you supply

  • Crown, riser and light rail from your cabinet line in the matching finish, or tell us to supply paint-grade stock
  • Cabinet brand and door style so we match the profile and the reveal
  • Under-cabinet light fixtures if you want them mounted behind the rail (a licensed electrician makes the connections)
  • Paint or stain color if we finish it — painting is quoted as a separate line, or paint it yourself

What JMB supplies

  • Nailer strips, blocking and mounting cleats on top of and under the boxes
  • Paint-grade crown, riser and light rail when the cabinet line does not offer them
  • Mitered outside corners at every cabinet return, coped inside corners, glued and pinned
  • Scribing the riser to a ceiling that is out of level
  • Fill, sand and caulk on paint-grade work; touch-up on factory finish
  • Photos of the finished kitchen in your job folder
  • Painting or staining of paint-grade crown and rail when you want it, quoted as its own line

How it is priced: per linear foot

Quoted in writing from your photos within one business day. What moves the number:

  • Linear feet of crown and of light rail, measured along the cabinet fronts and returns
  • One-piece crown vs. a stacked crown with a riser to reach the ceiling
  • Factory-finished molding from the cabinet line vs. paint-grade stock we supply
  • Number of outside corners — every cabinet return adds two miters
  • How far the ceiling is out of level along the run
  • Whether under-cabinet lights are going behind the rail at the same time

Send a straight-on photo of each cabinet run, a close-up of the gap at the ceiling, and your cabinet brand. Tell us the ceiling height and whether you want the crown to touch the ceiling.

How long it takes

Crown and light rail on a typical kitchen: one day. A stacked crown scribed to the ceiling on a large kitchen: about two days.

How your project works

  1. 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. 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. 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. 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

Crown that stops short of the ceiling

When the ceiling is well above the boxes, the crown caps the cabinets and the space above stays open. A nailer strip on the box, crown nailed to the strip, returns mitered at each end.

Stacked crown to the ceiling

A flat riser board fills the gap and the crown sits on top of it, tight to the ceiling. The riser is scribed where the ceiling dips so the crown line stays straight.

Light rail only

A small molding under the bottom rail of the uppers that hides under-cabinet lights and the raw bottom edge. Joints land at the cabinet seams and the rail is set back so doors swing clear.

Crown carried across the fridge and pantry

The tall cabinets and the fridge enclosure get the same crown so the line runs unbroken around the kitchen. Deep side panels on the fridge get the crown returned at the front.

Crown Molding on Kitchen Cabinets and Light Rail Installation: questions, answered

Can you add crown molding to my existing kitchen cabinets?

Yes. Most cabinets can take crown after the fact. We screw a nailer strip to the top of the boxes, then nail the crown to the strip so nothing is fastened into the thin cabinet top. If the cabinet line still sells the matching crown we install that; if not, we use paint-grade crown and it gets painted to match, quoted as its own line.

Does cabinet crown have to touch the ceiling?

No. When the gap is small, a stacked crown with a riser board closes it and the crown runs tight to the ceiling. When the ceiling is much higher, the crown caps the cabinets and the space above stays open. The first looks built-in, the second is easier and cheaper because nothing has to be scribed to the ceiling. Both are done all the time.

What is light rail molding and do I need it?

Light rail is the small molding along the bottom edge of the upper cabinets. It hides under-cabinet lights, covers the raw bottom of the box, and gives the uppers a finished edge when you see them from the table. You need it if you have under-cabinet lights you can see. It is optional otherwise, but most kitchens with crown on top look unbalanced without a rail on the bottom.

Can you hide under-cabinet lights behind the light rail?

Yes. The rail is sized and set back so the LED strip or puck lights sit behind it and only the light shows on the counter. We mount the fixtures and the rail; a licensed electrician makes the electrical connections and adds the switch or driver where it is needed.

Can you install the crown that came with my cabinets?

Yes. Cabinet lines ship crown, risers and light rail in long sticks with a matching finish. We add the nailer strips, cut and miter it on site, and touch up the cut ends with the finish kit. Send a photo of the sticks and the cabinet brand and we quote it per linear foot.

What if my ceiling is not level?

Most are not. With crown that runs to the ceiling, we scribe the riser board to the ceiling so the crown itself stays straight and the wave is absorbed in the riser. With a small gap, caulk at the ceiling takes care of it. We check the run with a level before quoting and tell you which way it will go.

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.

Free quote from your photos in one business day · No obligation · Licensed contractor

Photos (up to 3 — the fastest way to a price)

One wide shot of the room or wall, one close-up of the trim or opening, one of anything you're unsure about.

Related jobs we do

Page reviewed September 24, 2026 · JMB Builders LLC, MN license BC809005 · All finish carpentry pages

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Based in Zimmerman, scheduling across the Twin Cities metro. Closest first: