Our Sealy Stable Support™ Flat Foundation is designed to support your mattress for years of comfort to come. This durable foundation is engineered to provide a solid base for your mattress and upholstery to complement any Sealy® mattress. This foundation is available in a lower 5" profile for a more modern look that will easily fit through more narrow stairways. Included: 1 Box Spring(s) Manufacturer Warranty: 10 Year Limited Bed Size: Twin Measurements: 74 Length/Inches, 5 Height/Inches, 38 Width/Inches Maximum Weight Limit: 500 Lbs Base Material: 50% Metal, 50% Wood Care: Spot Clean Material: Steel, Wood Country of Origin: Made in US This product is responsibly packaged or labeled using recycled, alternative materials, or items designed to reduce future environmental impact. Mattress not included.