Twin Size Metal Bed Frame Platform with Headboard, Black uses the supplier-listed furniture details for home setup. Made of steel to form a sturdy frame With a high load-bearing capacity of 490 pounds Stable structure to prevent bending and deformation Metal support slats included no box. Listed materials include Steel. Supplier-listed capacity detail is 490 lbs. Listed weight detail is 26 lbs. Twin Size Metal Bed Frame Platform with Headboard, Black follows supplier-listed product details. Key listed specifications include material: Steel dimensions: 77.5" x 41" x 35.5" (L x W x H) capacity: 490 lbs weight: 26 lbs.