STYROFOAM™ Brand Buoyancy Billets

Large blocks of lightweight, moisture-resistant, rigid extruded polystyrene foam ideally suited for floating structures.

Used in:

  • Floating docks, rafts, boatwells and boathouses


  • Won't lose buoyancy even if punctured
  • Unaffected by salt or fresh water
  • Won't waterlog, rust or corrode
  • Resistant to damage from destructive marine growth
  • Just one cubic foot (0.03 cubic meter) of billet can float up to 55 pounds (25 kilograms)