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  • CM-1085 Crown Molding with MC-4164 Corner Block

CM-1085 Crown Molding

3⅛" Breadth x 94½" Length
Best for 8' - 9' ceilings
  • Quantity

    Per PieceThat's Only
  • 6-24

    $15.40$1.96 / foot
  • 25-49

    $14.65$1.86 / foot
  • 50-99

    $14.20$1.80 / foot
  • 100+

    $13.90$1.77 / foot
  • Quantity
    47 feet
Minimum order is 6 pieces Need to order less?

Order Today - Ships Tuesday, Oct 26th

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Shipping & Return Details
  • Order a 10" Sample ($3.00)


  • TypeMolding

  • Breadth3-1/8"

  • StyleRope

  • ColorWhite Primer

  • MaterialPolyurethane

  • Ceiling Height8' - 9'

  • Height2-1/4"

  • Width2-1/4"

  • Length94-1/2"

  • Print/DownloadProduct Spec Sheet


  • Product Video Placeholder Image
    Product Video
  • 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-1085 Crown Molding is a rope, 3-1/8" breadth crown molding typically used in rooms with ceiling heights of 8' - 9'.

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
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Paula V.Cortlandt Manor, NYMay 13, 2021

5 out of 5

Great Moulding

My kitchen looks great with the molding. I'm extremely satisfied. Looks great

David C.Greenwood, INMay 11, 2021

5 out of 5

Looks good

Easy to order. Quick delivery. Easy to cut and a good look to the rooms

Danell I.Apache Junction, AZMay 7, 2021

5 out of 5

Looks great.

I am very happy with the crown moulding. It has changed the look of the room very dramatically.I would recommend this product.

Paula V.Cortlandt Manor, NYMay 6, 2021

5 out of 5

Excellent product

The crown molding is great. Easy to work with and pleasant to look at. It looks great in my kitchen.

David C.Greenwood, INMarch 29, 2021

5 out of 5

Crown molding

easy to install with brad nailer and their how to videos were helpful for making the corner cuts and knowing how much air pressure to use

Eula C.Anderson, CAMarch 23, 2021

5 out of 5

Elegant and beautiful!

I absolutely love this crown molding! I put it in every room of my home. It really makes my home so elegant. I did add beautiful corner blocks with it to give it an even more elegant and unique look but it could have stood alone.

David M.Magnolia, TXMarch 18, 2021

5 out of 5

Very nice look it adds a beautiful style to your home

It is a beautiful look when you finish the installation of this crown molding material thank you for your help

Laura J.Fredericksburg, VAMarch 16, 2021

5 out of 5

Very happy

easy to install. I used decorative corners which helped make the installation easy while adding a unique touch. Udecor's installation videos are helpful. I highly recommend watching them if you haven't installed crown molding before.

Rebecca P.Mims, FLDecember 8, 2020

5 out of 5

Love the crown moulding!

Fantastic! Makes my living room look so classy. Great product, great service, and great price. Thank you!

Esayas W.Chicago, ILNovember 3, 2020

5 out of 5

Best item more than expected

Our room looks amazing. No experience needed . perfect for DIY project ,I installed it without any problem. Very easy to cut and glue it. I haven't painted yet, the picture show you with its original color

Robert M.Archdale, NCJune 23, 2020

5 out of 5

Perfect fit

Easy to hang, great look

Daniel B.New Berlin, WIJune 5, 2020

5 out of 5

Repeat order of this product

I was so happy with this crown molding I ordered more to make a cornice and a couple shelves.

Eb T.Gainesville, VAMay 26, 2019

5 out of 5

Great service. Thank you!

Great service. Thank you!

Anthony J.Tampa, FLMarch 23, 2019

5 out of 5

Excellent product!

Glad I chose this crown molding. Shipped quickly and packaged very well. Cuts and handles easily. Everyone who sees it is very impressed. Will order additional for other projects.

Sandra Z.Tonawanda, NYFebruary 25, 2019

5 out of 5

Crown molding for my mid century home

The crown molding arrived quickly, is painted and ready to be installed. It will give my home a much richer look. The sample arrived in one day and helped me make my decision. The design is perfect for my mid century ranch.

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