Abstract: The present invention relates to the field of vehicular roof top platforms that can be used to carry cargo as well as to enable individuals to stand thereupon. More specifically, the disclosed device relates to vehicular roof top platforms which are assembled from modular components enabling a great degree of control in regard to configuring the fore/aft size and width of such carriers. Furthermore, the present invention discloses roof top cargo platform which enable such platforms to be mounted parallel to the overall horizontal planar surface of a vehicle's roof despite such roofs presenting varying fore/aft as well as inboard/outboard curvature at the peripheral portions thereof.

Abstract: A custom roof top cargo carrier kit is disclosed that enables an end user to assemble and mount a cargo carrier demonstrating a desired custom length suitable for a variety of roof top mounting. The carrier utilizes multiple side rail segments in a wide range of predetermined lengths. The custom roof top cargo carrier utilizes tubular shaped side rail segments joined via centrally placed assembly studs aligned with the longitudinal axis of each segment so as to form complete side rails. This means of affixation provides a solid butt joint yielding increased resistance to forces that ordinarily cause failure of prior art side rails. In an alternate preferred embodiment, the side rail segment and side rails formed thereby is also disclosed as an independent component for integration in other roof top cargo carriers utilizing side rails.