Billets & Large Foam Blocks

Large Foam Blocks are perfect for fabricators, sculptors, and artists. We offer large foam blocks in a wide variety of sizes and almost any size is available for custom order.

Custom sizes

Variety of densities


Let Your Imagination Run Wild

Create anything you can dream up with Large Foam Blocks. Lightweight, sculptable and suitable for a variety of finishes, Alleguard’s Large Foam Blocks are available in a wide range of sizes and densities.

Product Features

Available Thicknesses
1/4″ to 54″
Available Lengths
Up to 216″ (18′)
Available Widths
Up to 48″
Available Densities
.75 lb to 2.85 lbs per cubic foot

Related Materials

Expanded PolyStyrene (EPS)

EPS is produced by using steam to expand and fuse polystyrene beads via a variety of manufacturing processes creating a closed-cell structure that contains air, making it ideal for a variety of applications including construction, packaging, shipping, and food storage.

Graphite Polystyrene (GPS)

Graphite Polystyrene is created by integrating graphite particles into EPS. The graphite particles increase thermal performance compared to conventional EPS.

The Alleguard Advantage

With a combined 60-year history and proven track record of supporting our customers’ visions, Alleguard is strategically built from the ground up to expand and shape your business. Whether you’re in construction, protective packaging, cold-chain or other industries, we are relentless in going the extra mile to help your business succeed.


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Whether you need a custom solution for a unique project or have a question, we’re here to help.