FoamRush 6 in H x 26 in W x 26 in L High Density Upholstery Foam

In this review the FoamRush 6 in H x 26 in W x 26 in L High Density Upholstery Foam Cushion proves to be a sensible replacement option for worn dining chairs, piano stools, wheelchairs, and DIY upholstery projects; the single biggest reason to buy is its combination of firm support and certified quality that promises long-term durability. The reviewer found the foam strikes a clear balance between cushioning and stiffness thanks to a measured compression rating and a high density formula, making it useful where a resilient, long-lasting seat pad is needed.

Key Features

• Certified quality: CertiPUR-US certification gives visible assurance that the foam meets independent quality and safety standards, useful for indoor seating projects.
• High density construction: The firm, high density composition is formulated to resist rapid wear and deliver support in heavy traffic and high use applications.
• Compression rating explained: The listed compression or ILD gives a predictable firmness so users know how much force is needed to compress the foam and expect reliable recovery.
• 100% recovery rate: The foam is described to return to original shape after use, which helps cushions and seats maintain profile over years rather than collapsing.
• Easy to customize: The sheet can be trimmed, stacked, or glued to create different thicknesses or sizes, fitting a wide range of chairs, benches, and DIY projects.
• Long lifespan: The manufacturer estimates a useful life of 7-12 years in typical seating applications, reducing the need for frequent replacement.

Who It's For

This foam is best for homeowners, upholsterers, and hobbyists who need a durable, firm replacement cushion for dining chairs, wheelchairs, stools, piano benches, RV and boat seats, or custom projects that require a predictable compression and long service life. The CertiPUR-US certification and high density make it particularly appropriate where safe indoor materials and resilience are priorities.

Those seeking a plush, sink-in feel should look elsewhere; customers who prefer a very soft, mattress-like cushion may find this foam too firm. Also, buyers who need pre-shaped covers or contoured ergonomic pads should expect to cut and customize this flat foam sheet themselves.

Pros & Cons

Pros

• Firm and supportive: provides stable seating that resists quick compression and keeps shape.
• Certified and durable: CertiPUR-US certification and a 100% recovery claim support long-term use.
• Customizable: easy to cut, glue, and layer for tailored thickness and fit for varied projects.
• Versatile applications: suitable for chairs, benches, boat and RV seats, and craft projects.

Cons

• Firmness is not for everyone: some customers report it feels very firm and may be too stiff for those wanting softer seating.

Specifications

Brand	FoamRush
Dimensions	6 in H x 26 in W x 26 in L
Density / Firmness	High density, Compression listed as 44 lbs (ILD referenced)
Recovery	100% recovery rate described
Certification	CertiPUR-US certified
Intended use	Upholstery cushion replacement, DIY projects, seats and pads

Our Verdict

The FoamRush 6 in x 26 in x 26 in high density foam is a practical, value-minded choice for anyone needing a firm, long-lasting seat replacement that is easy to cut and customize. It is especially good for high-use chairs and restorations where durability and certified materials matter, though buyers wanting a soft, plush feel should consider a lower ILD option.

Frequently Asked Questions

Can this foam be trimmed to fit custom sizes?
Yes. The foam is easy to cut with common slicing tools and can be trimmed, stacked, or glued to reach desired dimensions.

Is the foam safe for indoor use?
Yes. The foam is CertiPUR-US certified, indicating it meets specific indoor safety and emissions standards.

How firm is the cushion?
The product is firm with a referenced compression figure (ILD) around the mid 40s and a high density construction; some users find it very firm while others appreciate the support.