---
product_id: 615615016
title: "78\"x40\" Light Gray Underfelt Carpet for Speaker, Sub Box Carpet, Auto, RV, Boat, Marine, Truck, Car Trunk Felt Fabric Material"
brand: "halero"
price: "390 kr"
currency: DKK
in_stock: true
reviews_count: 13
category: "Halero"
url: https://www.desertcart.dk/products/615615016-78x40-light-gray-underfelt-carpet-for-speaker-sub-box-carpet
store_origin: DK
region: Denmark
---

# 78" x 40" coverage Easy to cut & customize Durable 100% polyester fiber 78"x40" Light Gray Underfelt Carpet for Speaker, Sub Box Carpet, Auto, RV, Boat, Marine, Truck, Car Trunk Felt Fabric Material

**Brand:** halero
**Price:** 390 kr
**Availability:** ✅ In Stock

## Summary

> 🚗 Elevate your ride’s style and durability with Halero’s ultimate underfelt carpet!

## Quick Answers

- **What is this?** 78"x40" Light Gray Underfelt Carpet for Speaker, Sub Box Carpet, Auto, RV, Boat, Marine, Truck, Car Trunk Felt Fabric Material by halero
- **How much does it cost?** 390 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/615615016-78x40-light-gray-underfelt-carpet-for-speaker-sub-box-carpet)

## Best For

- halero enthusiasts

## Why This Product

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

## Key Features

- • **Built to Endure:** Crafted from 100% polyester fiber, this carpet resists wear, gas, oil & salt for long-lasting performance.
- • **Customizable Precision:** Flexible and easy-to-cut material lets you tailor the carpet perfectly to your project’s needs.
- • **Spacious Fit for Any Ride:** Generous 21.12 sqft coverage fits trunks, RVs, boats & more with ease.
- • **Fade-Resistant & UV Protected:** Solution-dyed polypropylene ensures vibrant color and protection against sun damage.
- • **Professional-Grade Versatility:** Ideal for speaker boxes, subwoofers, upholstery, and automotive interiors — a must-have for DIY pros.

## Overview

Halero’s 78"x40" light gray underfelt carpet is a premium, durable polyester fabric designed for automotive, marine, and RV applications. Offering 21.12 sqft of coverage, it’s resistant to gas, oil, salt, and UV damage, while being flexible and easy to cut for custom fits. Perfect for speaker boxes, trunk liners, and upholstery projects, it combines professional-grade durability with versatile styling backed by a 6-month warranty.

## Description

Buy Halero 78"x40" Light Gray Underfelt Carpet for Speaker, Sub Box Carpet, Auto, RV, Boat, Marine, Truck, Car Trunk Felt Fabric Material: Flooring & Carpeting - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Perfect for Sewing and Stitching – Sturdy, Reliable, and Versatile! - I recently purchased this speaker grade carpeting for a project, and I’m really impressed with how well it holds up, especially when it comes to stitching and sewing. The material is strong and durable, making it ideal for custom upholstery, car audio projects, or any application that requires a sturdy yet flexible fabric. It’s thick enough to provide excellent durability, but still manageable enough to work with, even for more intricate tasks. What really stands out is how well the carpeting handles stitching. It doesn’t fray easily, which makes it easy to sew and create clean, professional seams. Whether you're using it for custom speaker boxes, vehicle interiors, or other DIY projects, this material is fantastic for ensuring your work looks neat and stays intact for years to come. I’ve used it in multiple projects now, and it consistently delivers great results. The texture of the carpet is another benefit. It has a nice, grippy surface that makes it ideal for creating non-slip applications, which is perfect if you need to keep things in place during a project. Additionally, it holds color well and doesn’t fade quickly, which is great if you want your project to look fresh for a long time. While it’s sturdy, it’s still soft enough to handle easily without feeling too stiff or difficult to work with. Whether you’re using it for a professional or DIY project, it cuts and molds well to different shapes and sizes. I’ve found it to be a very versatile material that works in a variety of applications beyond just speaker enclosures. If you're looking for high-quality carpeting that can stand up to stitching and other crafting or upholstery projects, I highly recommend this product. It’s durable, versatile, and delivers excellent performance no matter the application.
Review: Good quality - Good quality

## Features

- Brand new light gray interior durable unbacked auto carpet.
- The car carpet 78 inches wide × 40 inches long and total area coverage of 21.12 sqft,our non woven fabric material mafe of 100% polyester fiber,it is extremely durable, withstands heavy use and won't fall apart easily. (Note: The auto carpet is folded for delivery, not delivered in rolls.Don't worry, you can lay it flat for a few hours or use a steam iron for a little ironing.)
- Can be widely use for speakers, sub-box rugs, RVs, boats, trucks, cars, trunk liners, PA DJ speakers, boxes, upholstery liner rugs.(Ideal for car cargo areas)
- High resistance to gas, oil and salt,solution dyed polypropylene with good color fastness and UV protection.The carpet very flexible and easy to cut,can be cut to your liking.
- We provide satisfactory service and 12 months quality warranty. If you have any questions, please contact us first, we will solve the problem as soon as possible.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CPL2R8ZH |
| Batteries Required? | No |
| Best Sellers Rank | #5,354 in Automotive ( See Top 100 in Automotive ) #2 in Automotive Flooring & Carpeting |
| Brand | Halero |
| Color | Light Gray |
| Customer Reviews | 4.2 4.2 out of 5 stars (954) |
| Date First Available | December 6, 2023 |
| Included Components | speaker box carpet |
| Installation Type | Undermount |
| Item Package Quantity | 1 |
| Item Weight | 1.25 pounds |
| Item model number | TBWFB100200LG |
| Manufacturer | halero |
| Material | Polyester |
| Number of Items | 1 |
| Part Number | 747649868669 |
| Product Dimensions | 78"L x 40"W |
| Size | 78"×40" |
| Style | Modern |
| UPC | 747649868669 |
| Unit Count | 1.0 Count |
| Warranty Description | 6 months of warranty |

## Product Details

- **Brand:** Halero
- **Color:** Light Gray
- **Item Weight:** 0.57 Kilograms
- **Material:** Polyester
- **Product Dimensions:** 78"L x 40"W

## Images

![78"x40" Light Gray Underfelt Carpet for Speaker, Sub Box Carpet, Auto, RV, Boat, Marine, Truck, Car Trunk Felt Fabric Material - Image 1](https://m.media-amazon.com/images/I/81DHl+ShwqL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect for Sewing and Stitching – Sturdy, Reliable, and Versatile!
*by J***N on February 24, 2025*

I recently purchased this speaker grade carpeting for a project, and I’m really impressed with how well it holds up, especially when it comes to stitching and sewing. The material is strong and durable, making it ideal for custom upholstery, car audio projects, or any application that requires a sturdy yet flexible fabric. It’s thick enough to provide excellent durability, but still manageable enough to work with, even for more intricate tasks. What really stands out is how well the carpeting handles stitching. It doesn’t fray easily, which makes it easy to sew and create clean, professional seams. Whether you're using it for custom speaker boxes, vehicle interiors, or other DIY projects, this material is fantastic for ensuring your work looks neat and stays intact for years to come. I’ve used it in multiple projects now, and it consistently delivers great results. The texture of the carpet is another benefit. It has a nice, grippy surface that makes it ideal for creating non-slip applications, which is perfect if you need to keep things in place during a project. Additionally, it holds color well and doesn’t fade quickly, which is great if you want your project to look fresh for a long time. While it’s sturdy, it’s still soft enough to handle easily without feeling too stiff or difficult to work with. Whether you’re using it for a professional or DIY project, it cuts and molds well to different shapes and sizes. I’ve found it to be a very versatile material that works in a variety of applications beyond just speaker enclosures. If you're looking for high-quality carpeting that can stand up to stitching and other crafting or upholstery projects, I highly recommend this product. It’s durable, versatile, and delivers excellent performance no matter the application.

### ⭐⭐⭐⭐⭐ Good quality
*by V***A on December 14, 2025*

Good quality

### ⭐⭐⭐⭐⭐ The Blacks beautiful
*by B***L on November 26, 2025*

Covering Spealer box’s this stuff is nice easy to cut and blend when seemed together

## Frequently Bought Together

- Halero 78"x40" Light Gray Underfelt Carpet for Speaker, Sub Box Carpet, Auto, RV, Boat, Marine, Truck, Car Trunk Felt Fabric Material
- RECOIL RCI417 100% Oxygen Free Copper 17ft 4 Channel RCA Audio Cable Twisted Pair with Noise Reduction, Speaker
- RVBOATPAT 12V Power Distribution Block Car Audio Splitter 2 Way 0/2/4 Gauge in 4/6/8 Gauge Out Ground Distribution Block Amp for Automotive Car Boat

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**Shop now:** [https://www.desertcart.dk/products/615615016-78x40-light-gray-underfelt-carpet-for-speaker-sub-box-carpet](https://www.desertcart.dk/products/615615016-78x40-light-gray-underfelt-carpet-for-speaker-sub-box-carpet)

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*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-02-27*