Search  for anything...

78"x40" Grey Underfelt Carpet for Speaker, Sub Box Carpet, Auto, RV, Boat, Marine, Truck, Car Trunk Felt Fabric Material

  • Based on 865 reviews
Condition: New
Checking for the best price...

Buy Now, Pay Later


As low as $5 / mo
  • – 4-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

FREE 30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: In Stock.
Fulfilled by Amazon

Arrives Friday, Mar 13
Order within 11 hours and 32 minutes
Available payment plans shown during checkout

Protection Plan Protect Your Purchase
Checking for protection plans...

Color: Gray


Size: 78"×40"


Features

  • Brand new 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.

Brand: Halero


Color: Gray


Material: Polyester


Product Dimensions: 78"L x 40"W


Style: Modern


Brand: ‎Halero


Color: ‎Gray


Material: ‎Polyester


Product Dimensions: ‎78"L x 40"W


Style: ‎Modern


Installation Type: ‎Peel and Stick


Pile Height: ‎Low Pile


Unit Count: ‎21.67 Square Feet


Manufacturer: ‎halero


UPC: ‎747649868652


Number of Items: ‎1


Part Number:


Item Weight: ‎1.23 pounds


Item model number: ‎TBWFB100200MG


Size: ‎78"×40"


Included Components: ‎speaker box carpet


Batteries Required?: ‎No


Warranty Description: ‎6 months of warranty


Date First Available: December 6, 2023


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Mar 13

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Perfect for Sewing and Stitching – Sturdy, Reliable, and Versatile!
Color: Black Size: 78"×59"
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. ... show more
Reviewed in the United States on February 24, 2025 by John

  • good product, would buy again
Color: Black Size: 78"×25"
I used this to cover the sheet metal after my 71 nova was backhakfed.. worked out great! nice stuff, would buy again. I only wish it would come rolled up, because of the creases that are very hard to get rid of.. I didnt Iron it, I was afraid it would melt , but it relaxed after 2 days in the sun
Reviewed in the United States on August 3, 2025 by BTD 1969

  • Good quality material
Color: Light Gray Size: 78"×40"
Quality material bought to wrap my diy speaker box project. Easy to install factory look and soft durable carpet.
Reviewed in the United States on August 13, 2025 by Pen Name

  • Truly terrible
Color: Light Gray Size: 78"×40"
I didn't expect this to be a very smooth Gray finish. But the amount of blotchiness is unacceptable. If you were lining the interior of something that would never show, perhaps this would work. But it's not something you're ever going to want to look at. Moreover, it does not come on a roll, it comes in a folded square. Which means it has wrinkles, which is also unacceptable for my purposes. The provided description and pictures do not at all. Match what you will receive. Good luck to you. ... show more
Reviewed in the United States on May 6, 2025 by Cal Sand Cal Sand

  • matching carpet to car and durability.
Color: Black Size: 78"×40"
The material is not thick but thick enough to handle any project covering. The material is fair and holds together well. The black is dark but can fade a bit if rubbed to hard. Durable material. did the trick for my car.
Reviewed in the United States on August 30, 2025 by David David

  • Thin but durable
Color: Black Size: 78"×59"
Perfect for my raised bed project in the back of my 2 door Wrangler. Doesn’t cut easily unless you have sharp, sharp scissors. Fibers are, of course, synthetics. It staples and glues easily to plywood and itself. Recommended.
Reviewed in the United States on July 4, 2024 by MrBass

  • Wrong color received.
Color: Gray Size: 78"×40"
Ordered the darker gray color and received the light gray. Annoyed because this has set my project back since this took quite some time to get here. Seller did respond to my question with an apology and to let me know that if I wanted the right color I'd have to wait "a long time". Reordered with a different seller and the correct color showed up in 2 days. Product-wise it was what I was expecting, its like a thick felt material and if you are expecting a "carpet" this is not the right thing for you. It did come folded, which creates lines that will be visible unless you want to spend time steaming it out. The pictures show it on a roll. Overall, it would have worked for what I was doing and would have kept it had it been the right color-my deduction of stars is for the wrong item that was sent to me. ... show more
Reviewed in the United States on January 16, 2025 by AC

  • Good
Color: Black Size: 78"×59"
Used for custom amp board. looks better than my old factory carpet..
Reviewed in the United States on August 30, 2025 by cj

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...