US Patent 9603448 Modular shelving assembly with universal design ratio

A modular shelving system includes at least two elongate U-shaped members, wherein each of the elongate U-shaped members includes: an elongate body member; and first and second parallel elongate leg members extending transversely in the same direction away from opposing ends of the elongate body member with space between the first and second parallel leg members, wherein the length A of the elongate U-shaped member is equal to twice the height B of the first side of the elongate U-shaped member, plus twice the height C of the second side of the elongate U-shaped member, such that A=2B+2C.