Six tiers in an S-shaped stack, with a closed cabinet built into the run so the unit handles both display and hidden storage across the same 72-in height. Each shelf takes 44 lbs. The frame is engineered wood and MDF measuring 27.5 x 9 x 72 in, weighing 54 lbs - the mass that steadies a tall geometric shape. The 9-in depth keeps it tight against a wall in a hallway or a bedroom. In white, the zigzag silhouette reads as a decorative feature rather than as functional shelving.