A support rack comprising: a first side frame including a first vertical support member, a second vertical support member, and a support surface extending between the first vertical support member and the second vertical support member; a second side frame including a first vertical support member, a second vertical support member, and a support surface extending between the first vertical support member and the second vertical support member, wherein the second vertical support members of the first and second side frames define a first plane; and a hinge assembly including a first hinge assembly having first and second linkage members coupled to each other at a pivot connection for pivoting relative to each other in a plane parallel to the first plane and coupling the second vertical support members of the first and second side frames; and a second hinge assembly orthogonal to the first hinge assembly and pivotably coupled to the first side frame and the second side frame for pivoting the first and second side frames relative to each other, wherein the hinge assembly is operable to position the first side frame from a first position relative to the second side frame to a second position relative to the second side frame, wherein in the first position the first and second side frames are parallel relative to each other and in the second position (i) the first and second side frames are nonparallel relative to each other and (ii) the second vertical support members of the first and second side frames are closer in proximity to each other than the first vertical support members of the first and second side frames are to each other. a first side frame including a first vertical support member, a second vertical support member, and a support surface extending between the first vertical support member and the second vertical support member; a second side frame including a first vertical support member, a second vertical support member, and a support surface extending between the first vertical support member and the second vertical support member, wherein the second vertical support members of the first and second side frames define a first plane; and a hinge assembly including a first hinge assembly having first and second linkage members coupled to each other at a pivot connection for pivoting relative to each other in a plane parallel to the first plane and coupling the second vertical support members of the first and second side frames; and a second hinge assembly orthogonal to the first hinge assembly and pivotably coupled to the first side frame and the second side frame for pivoting the first and second side frames relative to each other, wherein the hinge assembly is operable to position the first side frame from a first position relative to the second side frame to a second position relative to the second side frame, wherein in the first position the first and second side frames are parallel relative to each other and in the second position (i) the first and second side frames are nonparallel relative to each other and (ii) the second vertical support members of the first and second side frames are closer in proximity to each other than the first vertical support members of the first and second side frames are to each other. a first hinge assembly having first and second linkage members coupled to each other at a pivot connection for pivoting relative to each other in a plane parallel to the first plane and coupling the second vertical support members of the first and second side frames; and a second hinge assembly orthogonal to the first hinge assembly and pivotably coupled to the first side frame and the second side frame for pivoting the first and second side frames relative to each other, wherein the hinge assembly is operable to position the first side frame from a first position relative to the second side frame to a second position relative to the second side frame, wherein in the first position the first and second side frames are parallel relative to each other and in the second position (i) the first and second side frames are nonparallel relative to each other and (ii) the second vertical support members of the first and second side frames are closer in proximity to each other than the first vertical support members of the first and second side frames are to each other.