Super Heavy Duty mattress foundation: Sturdy and durable Steel slats not only give stability and level support but also help prevent mattress from sagging and enhance mattress life. Product Dimension: 81. 5”*77. 5”*14. 2”(L*w*h). 14. 2 inches high with 12. 6 inches of Clearance Fully fit many existence boxes and other living idle items to storage inside. No box Spring needed: exquisite seamless Welding for stability allow 3000 pounds of static pressure and you can turn over freely with no squeaking or noise. Package includes clear instruction, all parts and tools, Easy & quick assembly, PLEASE follow instructions for proper assembly. Excellent customer service: 5 years limited manufacturer And customer support.