Abstract: A ready to assemble structural system comprises support members with slots, and bases with grooves. The slots allow various support members to be interconnected in rigid alignment. The grooves in the bases receive the upper or lower edges of the support members, providing further structural rigidity. Embodiments allow for the construction of real or toy chairs, tables, bookshelves, chests, houses, and other structures with internal storage capacity or the ability to support a person or objects. Particular embodiments can be vertically stacked or laterally joined to form extended structures.