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CM-1209 Crown Molding

3½" Breadth x 94½" Length
Best for 7' - 8' ceilings
  • Quantity

    Per PieceThat's Only
  • 1-24

    $18.55$2.36 / foot
  • 25-49

    $17.70$2.25 / foot
  • 50-99

    $17.10$2.17 / foot
  • 100+

    $16.75$2.13 / foot
  • Quantity
1 piece = $18.55 / 7 linear feet
  • Order a 10" Sample ($3.00)

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  • TypeMolding

  • Breadth3-1/2"

  • StyleCove

  • ColorWhite Primer

  • MaterialPolyurethane

  • Ceiling Height7' - 8'

  • Height2-1/2"

  • Width2-3/4"

  • 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-1209 Crown Molding is a cove, 3-1/2" 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.

Read the DIY Pro Tips section about using adhesive when installing.

  • 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, including how to measure for crown molding, 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 adhesive for about every 6 pieces of molding. Loctite’s PowerGrab or PL Premium work well in most applications.

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 with 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)



4.9 out of 5 stars
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Olga M.Boca Raton, FLJuly 7, 2023

5 out of 5

Far and Beyond

I ordered crown moldings from this manufacturer for the first time. I am an experienced DIY at my home. I worked before with this Styrofoam moldings. I was so pleased with the material, the packaging, and overall with the manufacturer Representative, which I did not have to contact, but she was there to help, just in case. So happy with my purchase and the material. I would recommend this manufacturer.

Peter K.West Covina, CAJuly 4, 2023

5 out of 5

Great product. Easy install

Great product. Easy install. Light weight and no mess.

Sheila I.Chestnutridge, MOJune 19, 2023

5 out of 5

Great Simple Crown Molding

I needed something simple for my design and you just can't find that at Home Depot or Lowe's. Found this site and couldn't believe the nice selection, good prices, and fast shipping! Very pleased.

Randall H.Pascoag, RIJune 7, 2023

5 out of 5

Easy to work with

Molding can easily be cut and shaped. Takes paint well.

Dan B.Clarkston, MIMay 26, 2023

5 out of 5

Very pleased with the product and tech support!

Finished our basement and used a tongue and groove ceiling tile that floats. This cove molding worked great!

Terry B.Fenton, MOMay 23, 2023

5 out of 5

Wonderful product! Will be using it again.

I wanted cove molding added in my home. I found this product and showed it to my contractor. He was very skeptical as he’d never worked with it before. However, once he and his crew installed the molding, he had nothing but rave reviews about this product…ease of installation, didn’t split or splinter, cutting, etc. I plan on ordering more to finish up 3 more rooms.

Elizabeth Y.College Park, MDApril 19, 2023

5 out of 5

Great Product

The moulding was just what we wanted and set the perfect tone for the room. Shipping was very fast!

Mary K.St.simons Island, GAMarch 18, 2023

5 out of 5


We are really pleased (again) with how our project turned out. Looks great and the ease of installation is an added plus. Highly recommend. Great service with this company and fast shipping too. Thanks!

Pam S.Troutman, NCMarch 17, 2023

5 out of 5

Looks amazing! Great product

Best part is I over ordered and udecor was very accommodating on the return process.

Dave H.Lebanon, OHJanuary 20, 2023

5 out of 5

Outstanding product and customer service

Product fit was perfect and looks great! Can’t say enough about the customer service Edde gave us.

Casey S.Sarver, PAOctober 25, 2022

5 out of 5

Looks great!

Great product

Joel D.Livingston, NJAugust 28, 2022

5 out of 5

Special crown ordered and fits perfectly

Needed a specific type of crown and in flex. U Decor was able to provide the exact model I needed

Lora H.Coos Bay, ORAugust 26, 2022

5 out of 5

Quite a finishing touch!

Totally remodeled an older mobile home. The finishing touch was adding the crown molding. Easy from ordering to having it installed.

Irina P.Alpharetta, GAApril 16, 2022

5 out of 5

I found just what I needed

I wanted a minimalist crown molding for one of my projects and it came quickly, in pristine condition and it looks amazing. I'll definitely consider them for future projects.

Jean F.Elk Grove, CAMarch 15, 2022

5 out of 5

Love this moulding

This moulding looks just like wood but goes up so much easier. It really elevated the look of my room! And by the way there customer service is outstanding!

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