4" Wedge Foam

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For maximum sound absorption, the 4 inch wedge foam is the product for the job. Excellent at absorbing low frequency waves, it provides maximum deadening capability and functions in the largest areas like gyms or concert halls.

Foam Colors Available
Acoustical Performance Data
Overall NRC: 0.80
4 Inch Wedge Performance Graph
To view the full PDF report of our acoustical test results, see the resources section (below).

Flammability Test Results
Classification: Class A
Flame Spread Index: 25
Smoke Developed Index: 250

Acoustical Performance Data: NRC Ratings for Wedge Foam
Leading Competitor Comparison: Acoustic Foam Product Comparisons
Flammability Test Results: ASTM-E84
Physical Data Sheet: Acoustic Foam
Frequently Asked Questions: FAQ
How To: How To Use Spray Adhesive with Acoustic Foam (PDF)


Manufacturing Tolerances
Products may carry a size tolerance depending on the style and job. Please see our Tolerance Table.

Color Availability
Size and quantity selections will affect color option availability.

Write a Review

Seemingly good quality, properly packaged
P Hanley | March 18th, 2020
Nice look seems to be good performance for foam, and was packaged and shipped with care. Have bought subsequent products and I am please with all of them.
Great Foam
Mario | June 12th, 2019
Ordered the 48pk 4inch acoustic foam. For the price, its a deal!!! Can't wait to order some more and finish up my room!!