---
product_id: 37822434
title: "DIY Styrofoam No Sewing Cosmopolitan Cornice Extension Kit 12 Inch Drop"
brand: "diy cornice kits"
price: "€ 83.91"
currency: EUR
in_stock: true
category: "Kitchen"
url: https://www.desertcart.ie/products/37822434-diy-styrofoam-no-sewing-cosmopolitan-cornice-extension-kit-12-inch
store_origin: IE
region: Ireland
---

# DIY Styrofoam No Sewing Cosmopolitan Cornice Extension Kit 12 Inch Drop

**Brand:** diy cornice kits
**Price:** € 83.91
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** DIY Styrofoam No Sewing Cosmopolitan Cornice Extension Kit 12 Inch Drop by diy cornice kits
- **How much does it cost?** € 83.91 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/37822434-diy-styrofoam-no-sewing-cosmopolitan-cornice-extension-kit-12-inch)

## Best For

- diy cornice kits enthusiasts

## Why This Product

- Trusted diy cornice kits brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

For use with DIY Styrofoam No Sewing Cosmopolitan Cornice Kit 12 Inch Drop. Assemble - Decorate - Hang - That's all there is to it! Our light weight Polystyrene Styrofoam Cornice Kit is so easy to make - no sewing involved! For use on windows and sliding glass doors. Includes Styrofoam, Mounting Brackets, Screws & Anchors. Just tuck the fabric in the groves with the Magic Tuck Tool - no gluing the fabric on or stapling. When its time to redecorate, it's so easy to replace the fabric. Starter Kit Size for openings up to 48" Wide, 9" High, 5" Returns (End Caps). Ask about our 3" Returns. For openings larger than 48" order the following: For Openings 48" - 64" Add 1 1-Piece Extension Kit. For Openings 65" - 80" Add 1 2-Piece Extension Kit. For Openings 81" - 96" Add 1 2-Piece Extension Kits & 1-Piece Extension Kit. For Openings 97" - 112" Add 2 2-Piece Extension Kits. For Openings 113" - 128" Add 2 2-Piece Extension Kits & 1-Piece Extension Kit. For Openings 129" - 144" Add 3 2-Piece Extension Kits. For Openings 145" - 160" Add 3 2-Piece Extension Kits & 1-Piece Extension Kit. For Openings 161" - 176" Add 4 2-Piece Extension Kits. For Openings 177" - 292" Add 4 2-Piece Extension Kits & 1-Piece Extension Kit. For Openings 193" - 208" Add 5 2-Piece Extension Kits. For Openings 209" - 224" Add 5 2-Piece Extension Kits & 1-Piece Extension Kit. For Openings 225" - 240" Add 6 2-Piece Extension Kits. There is a restocking fee when returned.

## Features

- Assemble - Decorate - Hang - That's all there is to it! No Sewing!
- Use our cornice kit and extension kits to create a cornice up to 50' in length.
- The styrofoam pieces are glued together using a low temperature glue gun.
- For use with Cosmopolitan DIY Styrofoam No Sewing Cornice Kit 12 Inch Drop or Tudor 15"/12"/15" Drop.
- View our Demonstration Video at https://youtu.be/nfWMYWHkYGI to see how easy it really is.

## Images

![DIY Styrofoam No Sewing Cosmopolitan Cornice Extension Kit 12 Inch Drop - Image 1](https://images-na.ssl-images-amazon.com/images/I/41DhfFsxDrL.jpg)

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**Shop now:** [https://www.desertcart.ie/products/37822434-diy-styrofoam-no-sewing-cosmopolitan-cornice-extension-kit-12-inch](https://www.desertcart.ie/products/37822434-diy-styrofoam-no-sewing-cosmopolitan-cornice-extension-kit-12-inch)

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-03-13*