Giantex 12.5-Inch-High Twin XL Metal Bed Frame330 LBS Large Capacity: The mattress foundation is constructed by a heavy duty metal frame, which is strong enough to support up to 330 lbs and accommodate your mattress and beddings. What's more, the 12 sturdy steel slats and 6 stout legs can evenly distribute the pressure, and they are not likely to deform. Under Bed Storage: As the platform bed is raised from the floor by 12. 5" you can make full use of the under bed space for storage. It's roomy