Most orders ship out free by Tuesday, October 19th

CM-2138 Crown Molding

2⅞" Breadth x 96" Length
Best for 7' - 8' ceilings
  • Quantity

    Per PieceThat's Only
  • 6-24

    $19.95$2.49 / foot
  • 25-49

    $18.95$2.37 / foot
  • 50-99

    $18.45$2.31 / foot
  • 100+

    $17.95$2.24 / foot
  • Quantity
    48 feet
Minimum order is 6 pieces Need to order less?

Order Today - Ships Tuesday, Oct 19th

Delivery on:  
Zip Code:
Shipping address is Residential
Shipping & Return Details
  • Order a 10" Sample ($3.00)


  • TypeMolding

  • Breadth2-7/8"

  • StyleStep

  • ColorWhite Primer

  • MaterialPolyurethane

  • Ceiling Height7' - 8'

  • Height2"

  • Width2"

  • Length96"

  • Print/DownloadProduct Spec Sheet


  • Product Video
    How To Install Crown Molding
  • Product Video
    5 Tips for Finishing Crown
  • Product Video
    What is Architectural Polyurethane?

Product Description

Quick Facts

  • Made from dense durable Polyurethane
  • Lasts a lifetime
  • Mold and mildew resistant
  • Lightweight and easy to install
  • Safe to install indoors or out
  • Exquisite detail and design consistency
  • Won't crack or splinter like wood or hard plastic

CM-2138 Crown Molding is a step, 2-7/8" breadth crown molding typically used in rooms with ceiling heights of 7' - 8'.

uDecor crown molding is manufactured with a dense architectural polyurethane compound (not Styrofoam). Polyurethane is durable and 100% waterproof. The material can be sanded to shape just like wood.

A major advantage of polyurethane is that it is safe to install in rooms with the presence of moisture like bathrooms and kitchens. This product will not encourage the growth of mold or mildew.

This molding is delivered pre-primed for most paints. Always test your paint on a small section to make sure there are no compatibility issues with the paint and primer. Most home latex paints work great on our molding.

  • Breadth - the distance between the outer contact point with the ceiling to the bottom contact point with the wall.
  • Height - the distance between the ceiling and the bottom contact point with the wall.
  • Width - the distance between the wall and outer contact point with the ceiling. The breadth is the hypotenuse of the right triangle whose legs are the width and the height.

Our crown molding installation video, walks you step-by-step through a full installation, with plenty of tips on how to make your project look amazing. Below are some of the key things to remember.

Use Adhesive for a Lasting, Seamless Finish
Apply a small bead of adhesive along the length of the molding on the back where it contacts the wall and the ceiling (watch). Finish nails help secure the molding while the adhesive sets. Most importantly, apply adhesive between any molding being joined end-to-end.  You will need 1 tube of Loctite’s PowerGrab (or similar adhesive like PL Premium) for about every 6 pieces of molding.

The Final Piece
Cut the last piece you install on each wall just a little long. 1/16 to 1/8 of an inch is usually enough to allow you to snap that piece in place, making sure all your joints stay nice and tight. This is easiest to do when you leave the last two feet of the previous piece unnailed (watch).

Our moldings do not need to be primed. Plus, since polyurethane does not absorb moisture, paints that are self-priming or a Paint & Primer in One may not dry properly. Standard latex paint is less expensive and will give you the best result.

Be Mindful of Temperature Effects
All materials expand and contract with changes in temperature. For best results, when installing on a hot day, keep the molding inside until you are ready to make your cut.

25 Year Limited Warranty

You're making a beautiful upgrade to your home and we're here to help protect that investment. We guarantee that your polyurethane millwork will be free from manufacturing defects for twenty-five years from the original date of purchase.

Warranty Conditions and Limitations

This warranty covers material defects in our polyurethane products when used in standard applications where temperatures do not exceed 150°F. It does not cover labor, consequential or incidental damages. This warranty is not transferable and applies to the original purchaser only.

  • Polyurethane products are for decorative uses only.
  • Polyurethane products need a finish coat of paint during installation; it is the purchaser's responsibility to make sure their paint works well with the product (test and let dry on a small piece first).
  • Before installation, allow your polyurethane product to acclimate to room temperature for 15 minutes.
  • All polyurethane moldings must be installed with tight fitting joints (see installation instructions) as well as adhesive between the joints to prevent seams from expanding during changes in season.

We're Ready to Help

Unlike a car, there is very little that can go wrong with a polyurethane product since polyurethane doesn't absorb moisture and won't be affected by insects. However, in the rare event that you do encounter a defect with your product, we're here and ready to help. Just give us a call and we'll work with you to identify the problem and, in case of defect, supply you with replacements.


At, we know that projects take a while, and sometimes plans change. To start a return, please call us at 1-877-550-0600 or email; we'll be happy to assist you!
  • 90 day return window
  • No restocking fees
  • Products must be unused/new and in their original boxes
  • Customer is responsible for return shipping cost (we are happy to help arrange shipping)
  • Partial returns where the quantity discount tier would change are refunded the difference between the original total and the total based on the kept quantity (see example)
Read the Pro-Tips above and watch this video to make your project look amazing:

For more how to videos, visit our DIY learning center



4.9 out of 5 stars
5 star
4 star
3 star
2 star
1 star

Keven H.Salt Lake City, UTJune 21, 2021

5 out of 5

Novice DIY

I installed this in a large basement bedroom - my first paint and crown project - and I was able to install and paint. The molding was very lightweight and actually makes the room look taller. I would recommend buying a couple extra pieces to be safe. Overall, excellent service and great product.

Tatyana P.Gaithersburg, MDMay 3, 2021

4 out of 5

looks great - not easy to connect angles

The product delivery was fast. We were installing it ourselves and had a bit of a difficult time connecting corners, but it might be due to little experience. Wish they would come in 12 ft...

Linda P.Sandy Hook, CTMarch 31, 2021

5 out of 5

Looks great and so easy to install that a 70 year old woman did it by herself.

It makes the room look taller. Has a clean crisp appearance that refreshed the look of the room.

Mike Y.Englewood, FLNovember 17, 2020

5 out of 5

Just what I wanted

This product was perfect to finish off a geometric bookcase without adding weight to the finished piece. Looks great and was easy to work with.

Anthony P.Abingdon, MDNovember 12, 2020

4 out of 5

Outstanding Product But Don't Be Short

The product is outstanding however, if you're one piece short, there is no way to order one stick to finish your project. Anthony, thank you for taking the time to leave a review. We're so glad you love your molding! We only have a minimum quantity to qualify for free shipping, but you are free to order as few as you need for your project, or if you wind up short on your initial order, even if you only need 1 piece (we take orders like that frequently). For most moldings, it's a flat shipping charge of $24.99 for the whole order, until you reach the 'minimum quantity,' at which point it ships for free. We apologize for any confusion. If you have any questions, our service team is ready to help. Thanks again!
See Full Response
Collapse Response

Ed M.West Carrollton, OHJune 13, 2020

5 out of 5

Looks great

Good product and easy to install

Steven L.Springdale, ARApril 6, 2019

5 out of 5

Great product and supplied fast

Turned room into exactly what I was looking for.. now it's time to order again for 2 more rooms

Marcelo A.Miami, FLAugust 16, 2018

5 out of 5

Great Product

Very nice product, fast shipping and easy to install. Thanks Marcelo A Miami, FL

Marcelo A.Miami, FLFebruary 11, 2018

5 out of 5

Very good product

Good to cut and seamless joints. Excellent product.

Kevin K.Ferndale, MIMarch 16, 2017

5 out of 5

Great new look

Cant find this one in stores

Jeffrey B.Milton, PAOctober 31, 2016

5 out of 5


Beautiful crown molding for an art deco look. Delivery was prompt and prices were reasonable. Still awaiting installation, but I expect it to be an amazing final touch.

Leonard L.Mill Valley, CASeptember 8, 2016

5 out of 5

crown molding

CM 2E crown molding is easy to install and puts a finishing touch to our rooms.

David W.Brentwood, CAJuly 23, 2015

5 out of 5

Work GREAT!!! VERY Happy and will be back.

I used these moldings, on top of kitchen cabinets that I painted. They really made a very finished appearance. Very easy to use and looks EXCELLENT. Moving on to my next project, crown molding through out the house.

James V.Monongahela, PAFebruary 19, 2015

5 out of 5

Good product, sharp lines

I would buy again from UDecor