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Subway Engraved Large 3D Acoustic Boxes

Subway Engraved Large 3D Acoustic Boxes

$349.95
Per Set of two is designed for permanent installation and includes mounting supplies. Choose from the available colors and depths to find the right fit for your project.

Featuring the highest NRC in our collection, our 3D Boxes deliver superior sound control with an impressive NRC rating of 0.85–1.1. These boxes are a permanent installation.

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2. Color: Cashmere
Wood Grain: None
*Not Compatible with Engraved Designs.
Engraving: Subway
*Only compatible with 36" x 36" Acoustic Boxes.
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Cashmere
Wood Grain: [[ woodTextureMap[activeBlockSet.color] ? activeBlockSet.color : 'None' ]]

*Not Compatible with Engraved Designs.

Engraving: [[ activeBlockSet.engraving === 'LargeParallel' ? 'Lg. Parallel' : (activeBlockSet.engraving || 'None') ]]

*Only compatible with 36" x 36" Acoustic Boxes.

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Customer reviews for Subway Engraved Large 3D Acoustic Boxes

Overall rating: 4.4117646 / 5 from 17 reviews.

Reviews

Discreet with lots of beautiful

"Discreet with lots of beautiful colors to choose from. We chose the sage green to go with our scheme. Easy to install and hopefully effective and noise dampening."

— Ellen M. (5/5)

The product itself is beautiful,

"The product itself is beautiful, but unfortunately after spending 2-3 hours installing them how I wanted I came back to the space to find 1/5 of them had fallen down. I think the company should provide more sticky backs as it felt like I got exactly enough with no extras in the event they fall. For the price of the product the adhesive should be better quality and more should be provided."

— Eva R. (3/5)

"Packaging was much better than last time. The acoustic boxes are easy to put together and mount to the wall. This was my second order. An easy recommendation"

— Jay (5/5)

"Easy to assemble (fold and install clips) done quickly. I will be ordering more pieces."

— Jay (5/5)

Looks great and makes

"Looks great and makes a big difference in my room"

— Joel L. (5/5)

I just opened up

"I just opened up an art studio and these are perfect! The space needed some help with acoustics and these totally do the job and look awesome in my space. So glad to have found them!"

— Adrienne B. (5/5)

We love the felt

"We love the felt right system! It allows us to turn sound dampening into our own design!"

— Todd W. (5/5)

Super easy to use,

"Super easy to use, great sound improvement, and this design is flexible so I could play with what would look great in my office space."

— Leticia S. (5/5)

The tiles are beautiful

"The tiles are beautiful and relatively easy to install. They have added a lot of dimension to our space and have made it much more quiet. Our ceilings are tall and the space has been echo-y but these have really helped!"

— Ingrid B. (5/5)

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Two-Year Warranty

We proudly stand behind the quality and craftsmanship of our products.

Sustainable Materials

Our PET felt is made from recycled plastic bottles with no chemicals.

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Award-Winning Colors

From bold, rich hues to soft, subtle tones, we offer the perfect range.

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Easy to Install

Make your space feel like home, without leaving a mark.

Frequently Asked Questions

Felt Right tiles are premium, sound-absorbing wall panels made from high-density engineered PET felt. Designed with both acoustic performance and modern design in mind, each tile features a soft, wool-like texture and crisp, chamfered edges for a clean, dimensional finish. At 9mm (3/8 inch) thick, these acoustic tiles are durable, attractive, and easy to install.

Made in the USA, every Felt Right tile is composed of approximately 50% recycled plastic — primarily single-use water bottles — broken down and sterilized without harmful chemicals. The fibers are dyed, felted, and precision-cut into a variety of sizes and shapes to support creative wall treatments for homes, offices, classrooms, and commercial interiors.

Key Features of Felt Right Wall Tiles:

  • Material: 100% PET felt (minimum 50% recycled content)
  • Thickness: Standard 9mm (⅜ inch); 18mm available for custom orders
  • Finish: Chamfered edges for a seamless, dimensional look
  • Sound Absorption: NRC rating of 0.35 (absorbs ~35% of ambient sound)
  • Eco-Friendly: Helps divert plastic waste from landfills
  • Applications: Ideal for acoustic panels, pin boards, creative walls, and design accents

Yes! Felt Right tiles can be trimmed to any size using a razor blade and a straight edge (see example here). For the cleanest results, cutting along the engraved pattern lines is easiest, but any custom dimension works fine. For more control or complex shapes, we recommend:

  • A serrated utility knife for general cuts
  • Standard woodworking tools or a jigsaw for straight edges and angles
  • A plywood template and a router with a flush-cut pattern bit for curves

Felt Right tiles have a Noise Reduction Coefficient (NRC) of 0.35, meaning they absorb approximately 35% of the sound that hits them. When installed across a significant portion of your wall, they can greatly reduce echo, soften harsh acoustics, and create a more comfortable listening environment.

For even greater sound absorption, Felt Right also offers a range of high-performance acoustic solutions beyond wall tiles. Our ceiling baffles come in three styles, each with a Noise Reduction Coefficient (NRC) ranging from 0.65 to 0.80. For maximum acoustic performance, our Wood Slat Ceiling Panels deliver an impressive NRC of 0.85. We also offer Wood Slat Wall Panels, which combine aesthetic warmth with sound control, and feature an NRC of 0.55.

Want to hear the difference? Watch our Before & After Video.

Felt Right tiles are designed to be low-maintenance and easy to clean.

Routine Cleaning:

  • Use a vacuum hose attachment to remove dust and lint
  • A lint roller can also work for quick surface touch-ups

Spot Cleaning:

  • Wipe with a damp cloth
  • For more stubborn marks, spray with a common household cleaner and gently wipe down
  • Avoid oversaturation to preserve the felt's integrity

Disinfection (Commercial Environments):

  • Tiles can be disinfected using multi-surface cleaning sprays or non-abrasive disinfectant wipes
  • Ideal for schools, offices, and shared workspaces

Click to download our cleaning & maintenance guide.

Felt Right adhesive tabs are conformable and will adhere to most surfaces, including textured walls. We recommend switching to our Commercial Grade adhesives at checkout for heavy textures like brick, cement, and cinderblock. We also recommend adding construction adhesive for secure bonding if needed.

Use our Felt Right Design Studio to create and preview your own custom wall layout. This easy-to-use tool lets you:

  • Choose from all available tile shapes and colors
  • Visualize your design in real-time
  • Adjust for wall dimensions and room size
  • Add patterns, borders, graphics, or full-wall applications

Once you're happy with your design, you can save, share, or order directly from the tool. If you'd like help customizing tile dimensions, shapes, or colors — or want expert advice to create the best design for your space — feel free to email us at design@feltright.com. Our team would love to help!