The Superior

The Marwin Superior Folding Attic Stairway is designed with the “Pro” Contractor and quality-oriented dealer in mind. All wood components are sourced from the highest-grade southern yellow pine lumber with quality and safety in mind. All Marwin Folding Attic Stairways come with a lifetime spring warranty.



  • 300 lb duty rating
  • 350 lb duty rating (Superior Plus)
  • 1x5 Frame and Stringer
  • 1x6 Tread
  • Two Strong Metal Handrails


  • CARB certified plywood
  • Easily adjustable spring tension
  • Full-width continuous hinge
  • 1x4 frame between side rails and door panels
  • Treads dadoed and stapled into side rails
  • High grade, kiln-dried, yellow pine lumber
  • Galvanized steel hardware with safety edge
  • Steel rod under treads
  • Safety grooved treads
  • Strong steel handrails securely bolted (no splitting or splintering)
  • Clear plywood panel
  • Lifetime Warranty on Springs

Options Available

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