custom cut marine foam

Whether you're refreshing tired boat seats or building cushions for a dockside bench, custom cut marine foam is the fastest way to get a clean, professional fit. Instead of wrestling with an electric knife and an oversized slab, you start with foam sized for your project and ready to wrap in upholstery fabric.

Why Choose Marine-Grade Foam?

Boat and outdoor cushions face sun, spray, rain and humidity. Good marine foam for boat seats is made for those conditions. It's less likely to hold water, encourage mildew or break down early the way standard indoor foam can.

What to Look For

• Drainage: Open-cell quick dry foam lets water flow through and air out fast.
• Firmness: Firmer foam suits seats. Softer foam works well for backrests and lounge pads.
• Thickness: Match the depth of your original cushion or the frame it sits on.
• Accurate dimensions: Measure length, width and any angles before you order.

Pair It with the Right Cover

Waterproof foam for boat cushions works best under a breathable cover. Wrap your boat cushion foam in marine vinyl or outdoor fabric, and add mesh panels or a breathable backing so moisture can escape. The same approach keeps outdoor cushion foam on patio furniture fresh season after season.

Ready to start? Browse the marine foam options below to find the right fit for your boat seats, pontoon cushions and patio projects.