This is the 40-in version of the X-braced narrow shelf, taller than the 28-in model and rated higher at 132 lbs in total. Each of the four bays measures 15 x 11 x 11 in with 2.5 in of open height beneath the lowest shelf. Adjustable foot pads take out any wobble on an uneven floor. The footprint is 16.5 x 11 in and the unit weighs 14.5 lbs - light enough to carry assembled into another room. Rustic brown boards in a black metal frame suit a study, a bathroom or a kitchen corner.