Durable Steel, Bamboo, Plywood SUSTAINABLE BAMBOO – Beautifully finished bamboo not only offers a refined look, it is also a sustainable material known for its incredible strength and durability VERSATILE STYLE, SOLID SUPPORT – Combining durable bamboo, boldly defined steel, and sturdy plywood slats, this skillfully built foundation delivers on both style and substance BUILT TO LAST - Made of steel framework, this durable foundation will support many years of serious snoozing; twin size supports a maximum weight capacity of 350 lbs, while all other sizes can support up to 700 lbs NO BOX SPRING NEEDED – Sturdy closely spaced plywood slats are designed to support and extend the life of your latex, memory foam or spring mattress without the need for a box spring QUICK AND EASY ASSEMBLY - All parts, tools, and instructions are shipped straight to your door in one conveniently packed box for simple setup in less than an hour; Worry-free 5-year limited warranty included; mattress sold separately