custom cut closed cell foam

When your project lives near water, sun, or rough use, custom cut closed cell foam is one of the smartest materials you can choose. Its sealed cell structure keeps moisture from soaking in, so cushions and pads stay lighter, drier, and less prone to mildew than ordinary open cell foam. Ordering foam cut to size also saves you time and spares you the uneven edges of trimming it at home.

Why Choose Closed Cell Foam

Closed cell foam sheets are firm, buoyant, and durable, which makes them a favorite for demanding jobs.

• Marine cushion foam for boat seats, bunks, and kneeling pads
• Outdoor cushion foam for patio furniture and poolside loungers
• Waterproof foam padding for camping mats, gym gear, and packaging

What to Look For

Thickness and Firmness

Thinner pieces work well for liners and kneeling pads, while thicker, firm foam padding gives seats more support. Consider how the piece will be used and how much give you want.

Accurate Measurements

Measure the finished area carefully and account for your cover fabric so the foam fits snugly without bunching.

Ready to start? Browse our closed cell foam options below to find the right fit for your next project.