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4" Thick 4# Mineral Wool Acoustical Board

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  • Sound Absorption Coefficients - ASTM C423 - From Manufacturer Datasheets
Rockwool / Thermafiber
Unit Of Measure:
Per Box (3 Panels / 24sf)

 Product Description

4" Thick Rigid Mineral Wool Insulation Boards are used as both acoustical and thermal insulation panels.  The 4" thickness provides both excellent sound absorption (NRC 1.10) and thermal insulation (R Value: 16.8) which makes this a very popular product in both the acoustical field as well as the industrial insulation industry.  This product is sold in boxes of 3 panels which are 4" thick and have panel dimensions of 24" x 48".

As the Acoustical Performance Chart listed below shows, the 4" Mineral Wool Panels are superior in sound absorption across the frequency spectrum.  4" Mineral Wool Panels absorb low, mid, and high frequencies which allows these panels to be made into bass traps (low frequencies) as well as Multi-Band Absorbers (all frequencies).  4" Mineral Wool Acoustical Panels are the preferred core material for Bass Traps.  The mineral wool insulation is installed inside a frame and wrapped with acoustical fabric and placed in the back corners or back wall of a home theater, sound studio, media room, etc.

4 inches
Density: 4#
Panel Size: 24" x 48"
Panels per Box: 3 Panels

Manufacturer is either Owens Corning Thermafiber or Rockwool (formerly known as Roxul)


*If you would like to place a large order (over 4 boxes) please go to our Bulk Quantity Product which offers reduced shipping rates.



 Product Reviews

  1. Best Prices, Fast Service

    Posted by Charles M. on 9th May 2019

    If you are thinking about DIY acoustic panels, this is the place!
    I did a lot of price checking and B.I.P. has the best prices and shipping rates.
    Quick service and panels arrived in perfect condition. Measurements were accurate and fit my homemade frame perfectly.

    *Charles, we are glad to hear you are happy with our products and service! Good luck with the project! ~BIP

  2. The way to go!

    Posted by Justin M. on 22nd Jan 2018

    Why spend lots of money buying a bass trap. Just buy Roxul, a bass trap frame and some fabric. Save 90% with the same results. I have Tall wicker planters in one of my audio rooms. The pot in the planter only sits down in them so far, leaving 2ft by 1ft by 1ft of empty open space. Filled the empty space with the Roxul wrapped in fabric. Now I have what I call Traplanters! Have Bass Trap half Planter that look great and work great!!

    *Justin, better trademark your Traplanters idea! ~ BIP

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