Abstract: A modular shelving assembly includes at least two U-shaped base units. Each base unit includes a base plate having side walls extending transversely from opposite ends thereof. Fittings are provided at free ends of the side walls and at opposite ends of the base plates. The two base units are capable of being assembled in a laterally staggered and overlapped orientation with a portion of one base unit fitting in the other base unit. A distance holder is engageable with a free end of one side wall of the one base unit that is laterally spaced from the other base unit.