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. 54"W x 76"D x 7"T Vacuum periodically Weight, 83.0 lbs Made in USA Boxed weight, approximately 100.0 lbs