The design of the traditional box-spring and bed frame has not changed in over a century. By 2010, it was time for an upgrade. Zinus offers the SmartBase Deluxe to replace the tired old box-spring. With numerous design advancements, including ease of transport and over 14 inches of new storage space beneath the frame, the new 16 Inch Deluxe SmartBase is positioned to change sleeping conditions globally. Assembly is a breeze with no tools required. Its heavy-duty tubular steel construction makes it sturdy and silent. The legs are recessed so no more stubbing your toe in the dark. Get a good night's sleep and a useful piece of furniture all day long ... with Zinus.