The Sturdy Steel Foundation

No Box Spring Needed - Retainer Lip Keeps Mattress In Place  Extra Durable - High-Quality Tubular Steel Construction with 9 Steel Legs For Ultimate Stability Quick Assembly - Assembles Almost Twice As Fast As Similar Bases No Squeak - Our No Squeak Design Means A Restful Night Sleep Extremely Heavy Duty Support - Supports Up To 3000 lbs. Our platform foundation/frame features a 9 leg all-steel welded construction that creates an extremely strong foundation for your mattress, holding up to 3,000LBS! It also has anti-squeak construction and eliminates the need for a box spring and frame.