FoamRush 8 in x 24 in x 27 in Upholstery Foam High Density Firm

In this review the FoamRush 8 in x 24 in x 27 in Upholstery Foam is recommended for DIY upholsterers, furniture restorers, and anyone replacing worn chair or boat cushions who needs firm, reliable support. The single biggest reason to buy is the foam's balanced feel: it offers a noticeable firmness without feeling rock hard, thanks to a 44 lb compression rating that keeps cushions from sagging while still providing comfortable seating. The reviewer found it straightforward to trim, layer, and adapt for a wide range of projects.

Key Features

• High density construction: Provides consistent support for seating applications so cushions retain shape over frequent use.
• 44 lb compression rating: Delivers firm support that prevents excessive sink while returning to its original thickness after use.
• Easy to customize: Can be trimmed, sliced, glued, or layered with common tools to fit chairs, benches, or custom shapes.
• Versatile use cases: Works for dining chairs, wheelchairs, boat seats, car cushions, mattress toppers, and craft projects alike.
• Consistent dimensions: The 8 in x 24 in x 27 in size is true to spec, making it simple to swap into existing cushion housings without extra measuring.

Who It's For

The foam is ideal for hobbyist upholsterers, small furniture repair jobs, and boat or RV owners who need a firm replacement cushion that holds up to regular sitting. It is especially good where thickness and consistent return are important, such as dining chairs, wheelchair seats, and workout benches.

Those who prefer a very soft, plush sink will want a different foam with a lower compression rating, and people needing custom-cut complicated contours should contact the seller for cutting options rather than assuming a ready-made fit.

Pros & Cons

Pros

• Firm yet not rock hard, offering long-lasting support for seating applications.
• Good build quality noted by customers, with accurate dimensions for easy replacement.
• Highly adaptable to DIY methods: easy to cut, glue, and layer for custom thicknesses.

Cons

• Firmness divided opinion: some users may find the 44 lb compression too firm for lounging applications.

Specifications

Brand	FoamRush
Size	8 in x 24 in x 27 in
Foam type	High density upholstery foam
Compression (ILD)	44 lb
Primary uses	Chair cushions, boat seats, car cushions, mattress toppers, crafts
Customization	Can be cut, layered, glued or trimmed to fit

Our Verdict

The FoamRush 8 in x 24 in x 27 in high density foam is a sensible choice for anyone replacing worn seating or building firm cushions where durability matters. Its 44 lb compression gives steady support without collapsing, and the material is easy to customize, making it good value for restorations and DIY projects where firmness and shape retention are priorities.

Frequently Asked Questions

Can I cut this foam to a custom shape?
Yes. The foam is easy to slice with a sharp or serrated knife, electric knife, or hot wire cutter and can be glued or layered for thicker pieces.

Is this foam suitable for boat or RV seating?
Yes. The foam is recommended for boat seats, RV cushions, and other mobile seating where firm support and shape retention are needed.

Will this foam feel too hard for lounging?
The 44 lb compression provides firm support; some users who prefer soft, sink-in cushions may find it firmer than expected.