SeaDek 40" x 80" 6mm Diamond Full Sheet – Storm Gray/Black

The SeaDek 40" × 80" Diamond Full Sheet is a cut-to-fit marine foam sheet for custom boat flooring and surface projects. Its 6mm construction adds cushioning and traction while giving DIY installations a clean, finished look.

KEY BENEFITS

• Large 40" × 80" sheet supports custom cut-to-fit layouts
• 6mm foam adds cushioning underfoot
• Brushed diamond surface provides marine-ready texture and traction
• Closed-cell PE/EVA foam is designed for wet marine environments
• Pressure-sensitive adhesive backing supports peel-and-stick installation

SPECS

• Brand: SeaDek
• Product: Diamond Full Sheet
• Dimensions: 40" × 80" (1016 × 2032 mm)
• Thickness: 6mm
• Material: Closed-cell PE/EVA foam
• Texture / Pattern: Brushed diamond
• Color: Storm Gray/Black
• MPN: 56411-80066

BEST FOR

• DIY boat flooring
• Casting decks and helm areas
• Steps, hatches and cooler tops
• Custom marine surface projects

SHIPPING & RETURNS

• Typical delivery: 2–7 days
• Free shipping on orders $75+
• 30-day returns on unused items with tags
• Ships to all 50 states

Most products ship within 2–7 days. Free shipping applies to qualifying orders $75+. Some products, including handmade SM4 items, may have separate shipping terms. Product-specific shipping details take priority.