The Karpen Luxury 8way handtied box springs provide balanced alignment, correct support, and better weight balance of the mattress. Fully upholstered working support provided by a steel grid and lumber Upholstery, 13 lbs of cotton 800 knots tied by hand Mattress sold separately Overall, approx. 36"W x 85"D x 10"T Vacuum periodically Weight, 75.0 lbs Made in USA Boxed weight, approximately 75.0 lbs