A supporting rack includes arranged rods arranged to form a planar grid pattern and connection device to allow for modification in the overall space occupied by the rack. In a preferred embodiment, a rack for use in a conventional domestic cooking oven is formed of perpendicularly disposed rods of material such as stainless steel suitable for withstanding the temperatures to which such an oven may be subjected and has an outer frame capable of interfacing with support inside oven walls, and generally centrally disposed hinged mechanism to allow folding of the portions of the rack to reduce its size and facilitate handling when performing tasks such as cleaning the rack.