Solid Charcoal Firm Foam

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Charcoal firm is higher quality charcoal foam that can handle any task charcoal regular can, to a greater degree. This foam's higher density renders it more resistant to breakdown and degradation, and its increased firmness aids in the casing of frequently used but delicate items that must be packaged snugly, like instruments or technical equipment. It can also serve as entry-level soundproofing.

Custom Cutting is Available!
Need something other than our standard sheet sizes? We can cut custom sizes of Charcoal Firm to fit your exact needs. See Charcoal Firm Foam Custom Cut for details.


Physical Data Sheet: Charcoal Firm Foam


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

Standard Sheet Sizes/Quality
Standard sheets of foam are cut slightly larger than the listed size to compensate for shrinkage during packaging, transit, and delivery. Sheets may contain rough edges. Any yellowing/discoloration present is a byproduct of exposure to light during production and manufacturing and does not represent a flaw, damage, or defect in the material.

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The Best Source for Foam Products
Tony Gardner | February 26th, 2020
I recently purchased a 2-1/2" sheet and a 1/4" sheet of the dense charcoal foam. Both were 80"x72" and were packed very well, and inflated to normal size quickly and without wrinkles or defects. One edge of the 2-1/2" foam has a "skin" which provides an excellent straight-edge for clean and accurate cutting to size. All in all I am very pleased, and will certainly reach out to for all future foam needs.
Excellent Product, Excellent Service
Sam Ciraulo | January 8th, 2020
Recently purchased 1/2" thick charcoal foam sheet. Product was as advertised and arrived as promised.
Nice product, Great service. Thanks!
Dan Cranor | December 26th, 2019
Nice product, great service
Does the job
Bruce Bartlett | December 18th, 2019
I use this foam for acoustic absorption and for mounting mics on instruments. It works well and has uniform porosity.
Head Ice Maker
Scott Belvitch | June 25th, 2019
Nice service and prompt delivery. The 3"x3" firm foam works great!
Very good product
Joseph Faust | May 31st, 2019
Prompt shipping great product A+
3/8" firm charcoal foam
Lorin | May 9th, 2019
Great, fast service, exactly what I needed to make a storage container for model locomotives and rolling stock. Firm, light and easy to cut.