Abstract: The present invention relates to a cable tray for supporting conduit thereon. The tray includes an elongated spine section which includes first and second section channels which extend along opposing first and second surfaces thereof. The tray has a plurality of support member assemblies which have a plate end and a support end opposite the plate end. The plate end of the support member assembly engages the first and second section channels, and includes at least one fastening aperture. The support end extends away from the elongated spine section. The tray also has a plurality of fasteners for threadably engaging the at least one fastening aperture of said support member plate end. The fasteners secure the support member assemblies at a desired location along the first and second section channels whereby support member assemblies are slidably positioned at a desired location and fastened thereto to provide a custom arrangement of support member assemblies about the spine section.