Metal STYLISH DESIGN: Twin bed frame comes with an elegant headboard&footboard is designed for your bedroom/guest room. No matter what style your bedroom or guest room is, vintage, industrial or modern, this bed frame fits perfectly. (No mattress comes). STRONG AND DURABLE: Heavy-duty bed frame is made of steel with ultimate strength, 12 metal bars for durability and stability. No box spring is needed. 330 lb weight capacity. ENOUGH STORAGE SPACE: 12.5 Inches under bed clearance of double metal bed frame provides enough storage space for tidying your clothes, quilts, odds and ends. EASY ASSEMBLY: The bed frame comes flat-packed in one box for easy to put together, which includes all parts, instructions and needed tools. Please follow the instruction and the assembly will be finished in half an hour. (Tools are included). SURE TO SATISFY YOU: Platform bed frame dimension: 78 * 40 * 35 In. Feel free to email us if you have any questions.