---
product_id: 241463656
title: "#444: Flexible Casing Molding: 11/16\" Thick x 3.25\" Wide - PRE Curved to fit Half Round Windows 34\" to 40\" Diameter"
brand: "flextrim"
price: "¥23430"
currency: JPY
in_stock: true
reviews_count: 8
url: https://www.desertcart.jp/products/241463656-444-flexible-casing-molding-11-16-thick-x-3-25
store_origin: JP
region: Japan
---

# Pre-curved for perfect half-round fit Moisture-resistant, no warping or cracking Easy install with standard woodworking tools #444: Flexible Casing Molding: 11/16" Thick x 3.25" Wide - PRE Curved to fit Half Round Windows 34" to 40" Diameter

**Brand:** flextrim
**Price:** ¥23430
**Availability:** ✅ In Stock

## Summary

> 🌀 Elevate your arch game with FLEXTRIM’s flawless curve!

## Quick Answers

- **What is this?** #444: Flexible Casing Molding: 11/16" Thick x 3.25" Wide - PRE Curved to fit Half Round Windows 34" to 40" Diameter by flextrim
- **How much does it cost?** ¥23430 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/241463656-444-flexible-casing-molding-11-16-thick-x-3-25)

## Best For

- flextrim enthusiasts

## Why This Product

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

## Key Features

- • **Durable & Flexible:** Engineered to flex without breaking, ensuring long-lasting architectural charm
- • **Customizable Finish:** Paint-ready surface with gel stain compatibility for personalized style
- • **Built to Brave Moisture:** Flexible polyurethane resists rot, warping, and cracking indoors or out
- • **DIY-Friendly Installation:** Fits your toolkit—no specialty tools needed for a pro finish
- • **Seamless Half-Round Elegance:** Pre-curved design hugs arches from 34" to 40" diameter flawlessly

## Overview

FLEXTRIM #444 is a pre-curved, flexible polyurethane casing molding designed specifically for half-round windows between 34" and 40" diameter. Its moisture-resistant material prevents warping, rot, and cracking, making it ideal for both interior and exterior use. Easy to install with standard woodworking tools, it offers a paint-ready surface compatible with gel-based stains for customizable finishes.

## Description

Conventional woodworking tools can be used with this material. Always install moulding in a relaxed position. Use construction or panel adhesive continuously on the backside and nails to secure moulding in place until adhesive bonds. Remember – do not use staples to fasten material, keep nails to a minimum (no closer than 6 inches between nails), and do not nail closer than 3/8 inch from edge of moulding. Flex Trim is stable and will not absorb moisture and is ideal for humid environments. It is not affected by heat or cold and can withstand extreme environments. ALWAYS lay out the material to let it relax back into its original shape; this is a good time to double-check molding style and application. NEVER pre-finish the material prior to installation. The material may flex during installation and cause fractures in the finish. ALWAYS make certain that the surface you are applying the material to is flat and smooth. Flexible molding will follow any irregularities in the surface. NEVER use staples or nails with large heads. Keep nails to a minimum and away from edges to avoid "bumps" at the edge. ALWAYS use a construction adhesive in conjunction with (or in lieu of) nails or screws. This will ensure a quick and easy application and a cleaner finished look. Let material warm up to room temperature for maximum flexibility.

## Features

- This item is PRE-CURVED to fit HALF round arches
- For interior and exterior use - will not warp, rot or crack when exposed to high moisture
- Can be installed with normal woodworking tools
- Material is flexible polyurethane resin - only recommended for painting applications but can be stained with a gel based stain
- You cannot force this material to go straight, it is PRE-CURVED to fit HALF ROUND shaped arches

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | FLEXTRIM |
| Is Discontinued By Manufacturer | No |
| Size | 34" Diameter up to 40" diameter |
| Color | Light Tan |
| Material | Flexible Polyurethane |
| Batteries Included? | No |
| Batteries Required? | No |

## Images

![#444: Flexible Casing Molding: 11/16" Thick x 3.25" Wide - PRE Curved to fit Half Round Windows 34" to 40" Diameter - Image 1](https://m.media-amazon.com/images/I/61YT4bp4EFL.jpg)

## Available Options

This product comes in different **Size Name** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Window contractors refused to even bid on fixing my rotted window. Flextrim to the rescue!
*by B***Y on July 7, 2024*

Our house is a hundred years old and the molding around our half moon window had rotted out. Two window contractors had REFUSED to bid on replacing the window. Flextrim to the rescue! They had enough widths that I could order something that would work. I did it by myself. How? The product is really heavy. The trick was to use stainless steel Torx finishing screws. I used the screws to temporarily hold sections up as I glued. If I had to do it over again, I'd use the screws to put the whole thing up temporarily so I could mark where to cut.

### ⭐⭐⭐⭐⭐ Good purchase
*by B***I on January 8, 2025*

Worked amazing for our antique window.

### ⭐⭐⭐⭐ Did the job
*by V***S on May 7, 2024*

Not easy to work with, heavy, need 2 or 3 people to hold it in place so you can pin it, but looks fine when it's done

## Frequently Bought Together

- FLEXTRIM #444: Flexible Casing Molding: 11/16" Thick x 3.25" Wide - PRE Curved to fit Half Round Windows 34" to 40" Diameter
- FLEXTRIM #444 Flexible Casing Molding: 11/16" Thick x 3.25" Wide - for Gentle Arches, Curved Walls and Straight Runs (8' feet Long (96" Long))
- FLEXTRIM Flexible Flatstock #WM1X6: 3/4" Thick x 5-1/2" Wide - 8' feet Long - Made in The USA (CM1X6)

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**Shop now:** [https://www.desertcart.jp/products/241463656-444-flexible-casing-molding-11-16-thick-x-3-25](https://www.desertcart.jp/products/241463656-444-flexible-casing-molding-11-16-thick-x-3-25)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-21*