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Acoustic Foam Corner Cubes – Corner Cubes for Acoustic Bass Traps


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Acoustic Foam Corner Cube

For best results when acoustically treating low frequencies, it is advisable to mount bass traps along room corners both lengthways and sideways.  Our Acoustic Foam Corner Traps help link together bass traps mounted horizontally and vertically.

  • 300mm Acoustic Foam Corner Cubes. Manufactured in the United Kingdom.
  • For use with SoundFix Bass Traps treating low frequency sound waves.
  • Our Acoustic Foam has an NRC rating of 0.85. This means it can absorb up to 85% of sound wave energy.
  • CNC cut and chamfered can be used with wall coving.
  • Suitable for use in a variety of rooms fitted with SoundFix Acoustic Foam Bass Traps.
  • All our acoustic foam is UL94 approved and exceeds UK Fire Safety regulations.
  • Not to be used for soundproofing. These are intended for use with bass traps for acoustic treatment purposes.
  • Manufactured to ISO 9001 standards.
  • Available in Studio Grey, Volcanic Red or Crystal Blue

How Acoustic Foam Corner Cubes Work

This product is designed to be mounted onto the walls of room corners. For maximum effectiveness, when using bass traps, it is recommended to mount bass traps horizontally and vertically along corners. The Acoustic Room Corners help to fill the gap where the horizontal and vertical bass traps meet. All our acoustic foam products can be mounted using a spray adhesive (sold separately). This product should not be used without accompanying bass traps. They can be used throughout a variety of rooms including home cinemas and recording studios.

Why Choose Us?

All our acoustic foam products including these acoustic foam corner cubes are manufactured here in the UK to ISO 9001 standards. Our acoustic foam has an NRC rating of 0.85 which makes it on average, 25% more effective at absorbing sound wave energy than the industry standard. What’s more, our acoustic foam also exceeds UK Fire Safety regulations and is UL94 approved.

When you buy from us, you’re buying directly from the manufacturer. This not only saves you money, it also allows you to benefit from our 40+ years of experience in the foam industry. If you need guidance on our acoustic foam, we’ll be happy to advise.

Latest Foam Cut To Size & Product Reviews

  • Jack Bull

    Does what it says :)

  • Reece Campbell

    Never knew about these. Very useful.

  • Dave Noy


  • Pete Marshall

    Great corner cubes

  • Guy Stanford

    Never seen these before, but thought I'd include them in my buy. A must have.

  • Claudia Rey


  • Keith Petts

    Handy pieces to have, cheers.

  • Adam Mills

    Handy extra to have and not too expensive.

  • Terry Pauley

    Glad I found these. Had the foam kit in the basket and checked back. Just a suggestion, but maybe look into adding these with the acoustic foam kit? Anyway, a good product.

  • Claire Wragg

    Wish I had seen these in the first place was wondering what I was going to do about the ruddy big gap.

  • Duncan Pierce

    Arrived quickly, all there, no probs :)

  • Andrew Gifford

    All good. Corner cubes fit where they're supposed to. No weird gap anymore.

  • Jess Lavers

    Spotted these after I made my first order which was annoying. Happy with them though.

  • Ian Hibberd

    These are a must have to go with bass traps.

  • Peter Fry

    Bought the red ones to go with the bass traps, all good!

  • Robert Footman

    Happy with my new corner cubes thanks.

  • Charlie Parkinson

    All shaped well no irregularities or anything.

  • Ian Seager

    A perfect fit to complete the look.

  • Paul Nevitt

    No issues, arrived on time and fit.

  • Patrick Robinson

    Works as described, wasn't sure if it would at first but there is a clear improvement in sound.

  • Sean Rogers

    Excellent service and excellent product, thanks

  • Chris Cooper

    works great I'm getting very little to no sound resonance now, thanks guys

  • Paula Clark

    simple design that just works.

  • Stephanie Alexander

    This made for a nice little addition into my studio, thanks guys

  • Jesse Parker

    Better than I expected, thank you!

  • Samuel Williams

    Perfect, added nicely to my room

  • Aaron Price

    nice little bass trap, good work to the guys at GB

  • Jean Clark

    works great nice job

  • Edward Steed

    Brilliant thank you very much

  • Glenn Morley

    First class service and great price. Many thanks

  • Tracy Hopkins

    Superb product and service will use again

  • Magnus Johnson


  • Roy Wright

    I didn't think that these would make any real difference but i was very wrong great product GB

  • Roger Phillips

    Sounds so good now I have all the acoustic foam in place, just makes my new surround sound pop with clarity

  • Malcolm Drewery

    These fit well into my room corners.



  • Paul Moore


  • Matt Lamb

    Wish Id known about these sooner.

  • Tony Roberts

    Fits well with the bass traps. I opted for the red colour to match the bass traps and the colours are exactly the same.

  • Connor Moore

    5 stars. I like that they have an edge to fit the top of the wall properly.

  • Ellis Henry

    I am quite surprised by the difference the cut out corners makes in comparison to the old corner cubes we had from another company.

  • Anthony Brady

    All good!!

  • Niamh Tyler

    Bought these in red, they match the tiles and bass traps I also purchased and all of them I'm really happy with.

  • Archie Gardiner

    5 stars. Cheers.

  • Jack Watson

    Very good. Thanks.

  • Steve Powell


  • Ken Moody

    Fitted perfectly into the corner of my room.

  • Patricia Jones

    Great quality foam and such a vibrant colour!

  • Sean Howard

    Bass traps sit flush with the corner cubes.

  • Joshua McKenna

    Purchased in blue. All good

  • Andrew Moss

    Fits great with the bass traps

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Why Choose GB Foam For Your Foam Cut To Size?

Our factory is equipped with the latest CNC cutting technology and throughout the years we have employed the most talented freehand foam cutters in the industry. Many members of the team have worked for the company for several decades and their attention to detail and quality control is something that only comes with years of knowledge and experience.

We have many customers who started with us in 1976 and are still working with us today, which we like to think reflects on our vision to be the most dynamic foam converter in our industry. For us no job is too big or too small. We offer the same level of service and delivery whether you are a retail customer ordering one piece of foam from home, or a large manufacturer ordering daily.

GB Foam Celebrating 40 Years in Business
40 Years In BUsiness

GB Foam have been offering foam cut to size from our factory since 1976.

Foam Made In The UK
Hand Made In THe UK

We employ the most talented freehand foam cutters in the industry.

Foam Made In The UK
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