Foamma 5ft x 20ft x 20ft High-Density Upholstery Foam Padding - Firm
Foamma 5ft x 20ft x 20ft High-Density Upholstery Foam Padding - Firm
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In this review the Foamma 5' x 20' x 20' High-Density Upholstery Foam Padding is evaluated as a practical replacement option for cushions, craft projects, and seat repairs. The bottom line: it is best for DIY upholsterers and crafters who need a firm, consistent foam block made in the USA, with an easy-to-remove organic cotton cover for washing and the assurance of CertiPUR-US certified materials. The most compelling reason to buy is the reliable firm support this high-density foam provides, especially when replacing worn chair or couch cushions where structure and longevity matter.
Key Features
- Made in America: Manufactured in the USA, the product supports domestic production and consistent quality control.
- High-density foam: The 3 in high-density core offers firm support that helps cushions retain shape and resist sagging under regular use.
- Washable cover: The organic cotton cover unzips and is machine washable for simple maintenance and a fresher finished piece.
- Custom sizing available: If the standard 5' x 20' x 20' block is not the right fit, the maker offers custom foam cuts to suit unusual projects.
- CertiPUR-US certified: The foam is produced without ozone depleters, heavy metals, or regulated phthalates and has low VOC emissions for better indoor air quality.
Who It's For
This foam block is ideal for hobbyists, upholsterers, and furniture DIYers replacing seat cushions, crafting custom pillows, or building bench pads where a firmer feel is desired. The washable organic cover makes it practical for household use where removable covers are preferred.
Those who want a very soft, plush cushion or expect a different thickness than stated should look elsewhere or confirm exact measurements before ordering, as some users report mixed impressions on perceived firmness and exact size tolerances.
Pros & Cons
Pros
- Firm, stable support from a 3 in high-density foam core that holds shape well under load.
- Made in the USA with CertiPUR-US certified materials, reducing exposure to certain harmful substances.
- Organic cotton cover that unzips and is machine washable for easy cleaning and maintenance.
Cons
- Some customers report mixed sizing and firmness expectations, so measurements and feel may vary slightly from expectations.
Specifications
| Product name | Foamma 5' x 20' x 20' High-Density Upholstery Foam Padding |
| Dimensions | 5 in x 20 in x 20 in |
| Core thickness | 3 in high-density foam |
| Cover material | Organic cotton, removable and machine washable |
| Country of manufacture | Made in the USA |
| Safety certification | CertiPUR-US certified, low VOC emissions |
Our Verdict
The Foamma 5' x 20' x 20' foam block is a solid value for people rebuilding or repairing seats and cushions who want firm, long-lasting support and washable covers. Its US manufacturing and CertiPUR-US certification add confidence for indoor use, though buyers should verify exact fit and firmness expectations for their particular project.
Frequently Asked Questions
Is the cover removable and washable?
Yes, the organic cotton cover unzips and is safe to wash in a machine according to care instructions.
How firm is the foam?
The product uses a 3 in high-density foam core designed for a firm feel suitable for cushions and seat repairs, though some users note perceived firmness can vary.
Can I get a custom size?
Yes, the maker offers custom sizes and different foam types on request to match nonstandard projects.
Editor's Take
The Foamma 5' x 20' x 20' high-density foam offers firm, long-lasting support with a removable organic cotton cover and CertiPUR-US certification, making it a good value for DIY upholstery and seat repairs.

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