Home / All / 1/4" Thick Closed Cell Foam

All > 1/4" Thick Closed Cell Foam

1 1

1/4" Thick Closed Cell Foam

Name: 1/4" Thick Closed Cell Foam
Brand: American Foam and Fabric
SKU: closed cell
Price: 20.0 CAD
Availability: InStock

$20.00 As low as

In stock As low as

$20.00

Sale

Product variants

This foam is 60" wide and 1/4" thick.

It was originally used for pad on vinyl tops, it is currently used for sculpting door panels on street rods and is used in making poker tables.

It is a hard and very dense foam.

SKU #closed cell

View full details

1/4" Thick Closed Cell Foam

Learn More +

Built for jobs that need structure, 1/4" thick closed cell foam adds firm support without extra bulk. It’s hard, dense, and holds its shape, making it a go-to choice for vinyl tops, door panels, and poker tables where a smooth, stable base matters. Browse available sizes and order online to get started!

What Is Closed Cell Foam?

Closed cell foam is made with tightly packed cells that are sealed, not open. Because of this structure, it does not easily absorb water, holds air inside the foam, and stays firm over time. This makes it very different from open cell foam, which is softer and allows moisture and air to move through it.

Compared to materials like fiberglass insulation or spray foam insulation, closed cell foam sheets are not meant to seal walls, stop air leaks, or provide energy savings. There is no insulation r value to consider here. Instead, the focus is on density, durability, and surface support.

This option is part of a wider range of closed cell foam sheets and rolls, with this version measuring 60 inches wide and 1/4 inch thick. The foam has a hard texture, higher density, and is designed for structure rather than cushioning.

Common Uses for 1/4" Thick Closed Cell Foam

1/4" Thick closed cell foam is often chosen when a project needs a thick foam layer that stays flat and firm. Common applications include:

Padding for vinyl tops, which was its original use
Sculpting and shaping door panels on street rods
Poker tables and game tables that need a smooth, even surface
Firm backing under upholstery vinyl materials
Support layers beneath automotive upholstery fabrics
Industrial and furniture projects where soft cushioning is not needed

Because it is a dense foam, it performs well in areas exposed to moisture without leading to mold or mildew growth.

Why Choose Higher Density Foam?

Higher density foam is used when structure matters more than comfort. This material is:

Firm and durable, even after years of use
Resistant to moisture and water exposure
Less likely to compress compared to soft cushioning foam
Better for flat surfaces that must stay even

If a project needs flexibility or comfort, other upholstery foam options may be a better fit. For builds that need a solid base, this higher density foam helps protect surface materials and keeps finished work looking clean.

Best Applications & Recommendations

This foam is best suited for projects that need support without added thickness.

Recommended for:

Thin, firm padding layers
Automotive interiors and custom panels
Table builds and specialty furniture pieces

Not recommended for:

Seat cushions or comfort-focused areas
Projects where soft foam or buoyancy is required

The material is easy to cut, shape, and install. Many builders secure it using upholstery spray adhesives for clean placement. It performs well in dry or damp areas and does not trap moisture inside the foam.

For consistent material quality and sizing, this foam is sold by Midwest Fabrics and available by the yard. Samples are available where allowed, and orders can be placed online or in person at 1226 Concord St S, South St Paul, MN.

Closed Cell Foam FAQs

What is closed cell foam used for?

Closed cell foam is commonly used when a project needs firm support and durability instead of soft cushioning. This type of cell foam is often chosen for automotive panels, poker tables, furniture backing, and industrial builds where a dense foam layer helps protect surface materials and hold shape over time. Because the cells are sealed, it does not easily absorb water and handles moisture better than open foam.

Is this foam soft or firm?

This foam is firm and hard, not soft. It has a tight texture and higher density, so it resists compression and stays flat. It is not meant for comfort or seat cushions. If comfort or flexibility is the goal, other foam types may be a better option.

What is the firmest type of foam?

Firmness depends on density, not thickness alone. In most applications, high density foam with closed cells is considered the firmest because it holds air inside the cells and does not collapse easily. For a clearer comparison of foam firmness and density levels, this

Can this be used for automotive interiors?

Yes. This foam is commonly used in automotive interiors, especially for door panels, vinyl tops, and custom builds on street rods. It provides structure under vinyl or fabric without adding bulk. Builders often pair it with other

What’s the difference between open cell and closed-cell foam?

The main difference is how the cells are formed. Open cell foam allows air and moisture to pass through, making it softer and more flexible. Closed cell foam traps air inside sealed cells, which makes it firmer, more durable, and less likely to absorb water. A deeper breakdown of the

How thick should closed cell foam be?

Thickness depends on the job. A 1/4 inch thick foam layer is often ideal for surface support, panel shaping, and table builds where a smooth, firm base is needed. Thicker foam may be used for added structure, while thinner sheets work well for light backing applications.

What are the downsides of closed cell spray foam?

Closed cell spray foam insulation is a different material than sheet foam like this product. Spray foam is used to seal walls, reduce air leaks, and improve energy savings in residential or business settings. It has an insulation R value, higher install cost, and is meant for crawl spaces and walls — not furniture or upholstery projects. Sheet closed cell foam is chosen for structure and durability, not insulation.