Auralex Cornerfills™ and Cornerfill Cubes™

Auralex Cornerfills™ and Cornerfill Cubes™

Cornerfilll Panels and Cornerfill Cubes provide stellar aesthetics with a distinctive, upscale look.  They provide an ultimate solution for low-frequency issues which frequently congregate in room corners.  They provide a unique approach to soundproofing on a budget. 


Cornerfill Options

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Price: $89.99
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Made in USA

Cornerfills are sections of flat cut Studiofoam broadband acoustic absorbers designed to provide a unique and professional way to finish off an acoustic treatment design.  Cornerfills are designed to fit snugly into corners and provide a clean, smooth edge for your acoustic decor′.  They offer excellent bass absorption as they smooth out excess low-frequency energy that tends to congregate in room corners.  Great for gymnasiums, auditoriums or any areas with pronounced low-frequency issues.  

Produced from open-celled Polyurethane; panels are flexible, durable and easy to install.  They are produced with special Eco-friendly materials designed to lessen dependency on fossil fuels while providing improved performance and durability over conventional foams.  They meet or exceed the requirements of the demanding professional in terms of product quality and acoustic testing data.

PLEASE NOTE:  This product is not fire-rated,  in applications where fire-rating is a priority, please see our Sonex Panels.

Cleaning and Maintenance Information:

Since Studiofoam is an open-cell material, we strongly advise against getting it wet.  Any moisture trapped in the cells can mold and create more cleanliness issues, although it will not affect performance.  For cleaning the foam you can dry dust or use an upholstery attachment on a vacuum cleaner.  


  • Gymnasiums
  • Large Rooms
  • Warehouses
  • Recording Studios
  • Home Theatres


  • Produced with special Eco-friendly materials for 36% less green house emissions and dependency on fossil fuels.
  • Improved performance and durability over conventional and solvent foams.
  • Withstands environmental conditions- won't crumble over time. 
  • Flexible, bounces back to shape when pressed against. 

How To Order:

Choose from our wide color variety to best suit your design application.  Select the color of your choice to view a color sample in large or view a full color chart in the Product Data tab.  Actual color may vary based on your monitor settings.   It is advisable to order a color sample prior to ordering panels.  Please email us with your selection and shipping address and we will be happy to send you a free color sample.  Select from our sizing option; product is available in five sizing options with variations in length and thickness.  The thicker the panels, the more low frequency absorption gained.  

FREE SHIPPING!  See Shipping and Returns tab above for additional information.

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Installation Guide

For a printable version of Installation Instructions for Auralex Studiofoam Panels, please visit.

  • Prior to mounting, mark desired panel locations on the wall with small pencil marks or masking tape.
  • If you need to cut your Studiofoam, it is recommended to use a straight edge and an electric carving knife.  Don't force the knife; let the blades do the work.

EZ-Stick Pro:

Clean attachment points on the wall surface with Isopropyl alcohol (avoid household cleaners), wipe gently and let dry.  Separate the EZ-Stick Pro Tabs from each other.  Remove one of the paper release liners from the strip.  Apply the tabs on the rear of the panel near the outside edges, orient vertically for maximum holding strength.  Remove the second paper release liner from the backside of the tab, position the panel with the target location on the wall and press firmly to attach.  Use 4 tabs for a 2'x2' Studiofoam panel and 6 tabs for a 2'x4' panel.

Tubetak Pro Liquid Adhesive & Foamtak Spray Adhesive:

Both are contact adhesives, so wait a period of time after applying it to the back of the panel before trying to adhere the panel to the wall.

  • Tubetak Pro (caulk gun required) typically works better if it is spread thin, use a putty knife if needed.  If the adhesive seems to take a while to dry (cure time can be dependent on humidity and other environmental factors), you may consider supporting the panel in place with a T-pin or finish nail.
  • If you are using Foamtak (US only), hold the can 12 to 18" away from the Studiofoam and shake the can from side to side to yield a spider web pattern.  For best results apply to both surfaces, allow 45 seconds to tack and then apply.  For a more temporary bond apply the Foamtak to one surface only.  Storing the Foamtak upside down between applications may allow a more consistent spray pattern.  You can use the Studiofoam carton as spray shields for a cleaner installation.  Stacking two Studiofoam cartons can provide a convenient work surface.

TEMP Tabs:

TEMP Tabs are a semi-permanent mounting kit that is a great way to temporarily install your Studiofoam.  Removing the tabs causes some minimal damage to walls that may require spot repairs.

Other Mounting Options:

  • T-Pins or Finish Nails can be used to tack the panels in place for a quick installation with minimal wall damage.  Sometimes larger nails or panel movement can cause the foam to tear, so this is usually best as a temporary installation method.
  • Studiofoam can be mounted to a backing (such as pegboard, Corex, cardboard, plastic, plywood, etc) before installing it on a wall.  This assembly allows for added durability when relocating/repurposing Studiofoam panels.
  • Notes:
  • EZ-Stick Pro Tabs may not adhere well to some vinyl wallpapers.  Apply to surfaces above 50° F (10° C).  Adhesive could soften and lose adhesion above 105º F (40° C).  EZ-Stick Pro Tabs are considered permanent and will damage the wall surface when removed.
  • Both Tubetak Pro and Foamtak are considered permanent installations.  Removing a panel after the adhesive has cured can result in some damage to the Studiofoam and the mounting surface.  Auralex is not responsible for any damage to walls, floors, ceiling or the overall structure that occurs doing installation or removal of our products.  Try using a flat edge knife to carefully scrape the panel away from the wall to minimize tearing, and then use a citrus-based adhesive remover.
Shipping & Returns

Shipping and Return information is specific to this product page only (not for other products on our site).

  • Shipping:
    • Product usually ships within 4-7 days.
    • FREE SHIPPING on this product - Applies to orders shipped within the USA (excluding Alaska and Hawaii).
  • Returns:
    • We will accept returns up until 60 days from the date of purchase.  The boxes need to be unopened with no damage and a 25% restocking fee will be charged.
    • Please call or email us to receive an RMA number before returning. No returns will be processed without an RMA number.  
    • We will provide you with a shipping address when giving you an RMA number.
    • Return shipping is customer's responsibility. 
    • If you are shipping via USPS (not recommended) do NOT require signature as we will not be able to pick up your package from local post office facility.
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