Modular rack

摘要

A stackable storage unit may be vertically stacked for storage and transportation of storable members. The storage unit comprises at least one pair of rails extending in a first direction and having a contoured surface for supporting a surface area of a generally cylindrical storable member. At least two generally vertical walls extend in the first direction on opposing ends of the storage unit. The walls comprise a flat top surface with a plurality of alignment openings therein. A plurality of alignment tongues extending from the bottom of the wall are positioned and configured to engage corresponding alignment openings in an underlying storage unit. A rib structure underlies the rails and connects the walls to the rails. Feet extend below the bottom of the alignment tongues and support the storage unit on a generally flat surface or fit inside the walls of an underlying storage unit.