Strong and Durable Steel MINIMALIST DESIGN, EARTH-FRIENDLY WONDERBOX(TM) - Featuring a modern and durable foundation, this sleek bed frame is shipped in a box designed to leave a smaller carbon footprint PRACTICAL AND RELIABLE DESIGN - This frame offers an ultra-durable metal structure and 12.4 inches of underbed space for storing extra odds and ends NO BOX SPRING NEEDED - Reliable metal slats are designed to support and extend the life of your spring, memory foam, or latex mattress without a box spring, supporting up to 700 lbs (Full, Queen, King) EASY ASSEMBLY - All the parts, tools and instructions you need for easy, two-person assembly in under an hour are efficiently packed and shipped in our new, earth-friendly WonderBox(TM) WORRY-FREE WARRANTY - A limited 5-year warranty covers any manufacturing defects; mattress sold separately