A framework for supporting stretchers and method of assembling includes a sub-frame having an adjustable length header bar assembly and adjustable height outer frame legs connected to opposing ends of the header bar assembly. A secondary stretcher support is positioned laterally interior of and parallel with each outer frame leg, each of the secondary stretcher support and outer frame leg including stretcher holders. Interframe connectors are transversely positioned between pairs of sub-frames and pairs of secondary stretcher supports. Stretcher handles seat in the stretcher holder and the secondary stretcher support. The framework is configured to fit within varying dimensions of a mass transit vehicle and can be a component of a vehicle conversion kit. The kit can further include tools for assembling the framework, assembly instructions, and a crate for storing and transporting at least the framework, supports, tools, and assembly instructions.
