Foamy Foam High Density 5 in Thick Upholstery Foam - Cushion
Foamy Foam High Density 5 in Thick Upholstery Foam - Cushion
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In this review the Foamy Foam High Density 5 in Thick Upholstery Foam is assessed for anyone who needs a reliable cushion replacement for seating projects. The bottom line: this 5x18x72 foam delivers a balance of firmness and support thanks to its 1.8 density and 44 ILD, making it a solid choice for seat cushions, couch cushions, bench pads, and window seats that need durable comfort. The review focuses on build quality, fit for common applications, and a few handling notes about unpacking and decompression.
Key Features
- High density construction: The 1.8 density gives the foam durable resilience so cushions hold shape under regular use.
- Firmness level: The 44 ILD compression rating provides a medium-firm feel that supports the body without feeling overly hard.
- Made in the USA: Domestic manufacture ensures consistent cutting and quality control for upholstery projects.
- Custom sizes available: The manufacturer cuts foam in a wide range of thicknesses, widths, and lengths so you can get a tailored replacement.
- Single-piece delivery: You receive one continuous 5x18x72 piece, which is convenient for replacing an entire cushion without seams.
- Decompression guidance: The foam ships compressed but recovers fully if unpacked and allowed to lay flat for 2-3 days.
Who It's For
This foam is best for DIYers, upholsterers, and homeowners replacing seat cushions, couch cushions, bench pads, or creating slim window seats where a 5 in thickness and 18 in width suit the frame. The balanced firmness makes it appropriate for people who prefer support combined with moderate comfort rather than a soft, sinking feel.
Those who need extra-soft cushioning, specialized memory foam properties, or unusual custom contours should look elsewhere; this product is focused on standard high-density polyurethane foam for structural seating support rather than plush or orthopedic foam types.
Pros & Cons
Pros
- Durable feel from the 1.8 density that helps cushions retain shape over time.
- 44 ILD gives dependable support suitable for everyday seating and benches.
- Arrives as one 5x18x72 piece, simplifying replacement without seams or joins.
- Available custom sizes for other projects, expanding usefulness beyond this single size.
Cons
- Ships compressed and requires 2-3 days laying flat to fully decompress before use.
- Not the best option for users seeking a very soft or memory foam feel.
Specifications
| Brand | Foamy Foam |
| Thickness | 5 in |
| Width | 18 in |
| Length | 72 in |
| Density | 1.8 (high density) |
| ILD | 44 (compression rating) |
| Quantity | One piece 5x18x72 |
Our Verdict
The Foamy Foam High Density 5 in Thick Upholstery Foam is a practical, good-value option for anyone replacing seat or couch cushions who needs firm, long-lasting support and consistent sizing. Its domestic manufacture, readily available custom cutting, and predictable 44 ILD make it a dependable choice for most standard upholstery projects, provided buyers allow the recommended decompression time.
Frequently Asked Questions
How long until the foam reaches full size?
Unpack immediately and allow the foam to lay flat for 2-3 days to fully de-compress and regain full volume.
Can I order different sizes?
Yes; the company cuts foam in thicknesses from 1-7 in and widths 12-48 in and lengths 12-120 in, so contact them if you need a different size.
Is this foam suitable for couch cushions?
Yes; the 1.8 density and 44 ILD make it well suited for couch and seat cushions where medium-firm support is desired.
Editor's Take
The Foamy Foam High Density 5 in Thick Upholstery Foam is a practical choice for replacing seat and couch cushions, offering firm, long-lasting support with reliable sizing and good value when allowed to decompress for 2-3 days.

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