Custom vehicular roof top cargo carrier kit

A custom vehicular roof top cargo carrier kit especially configured and adapted for assembly of a roof top carrier having a selected, predetermined fore to aft length, said kit being comprised of a plurality of:

• side rail segments, side rail segment assembly studs, side rail coupler/crossbar adapters, and mounting bases, the roof top carrier also including at least three primary crossbars;
• wherein
• the side rail segments are configured, shaped and formed as tubes having a circular cross section, each such side rail segment having a fore end, an aft end, a length as measured from the fore to aft end thereof, a diameter and a longitudinal axis running along a radial center of each segment, the side rail kit including segments demonstrating a plurality of pre-determined lengths, each such side rail segment including therewithin, two assembly stud receivers, one of such assembly stud receivers being located and positioned proximal to the fore end and one of such assembly stud receivers being located and positioned proximal to the aft end of each side rail segment, the assembly stud receivers being shaped and configured to include a central hub having a threaded central bore, the threaded central bore having a depth and positioned in longitudinal alignment with the longitudinal axis of the segment wherein the segment assembly stud demonstrates a length;
• the at least three primary crossbars being configured and shaped as bars having a length, an top surface, a bottom surface and two ends, the ends of the crossbars being especially shaped and configured to enable mating contact of said ends with an inboard surface of a side rail coupler/crossbar adapter, the bottom surface of the crossbar being configured and adapted to include a central groove running along the length thereof especially shaped and configured for retention and capture of an assembly bolt therein which, in turn, enables engagement and attachment of said primary crossbar to a mounting base;
• the plurality of side rail coupler/crossbar adapters being shaped and configured to demonstrate an inboard surface, an outboard surface, an upper portion and a lower portion, the upper portion being especially shaped and configured to include an upper hollow tubular bore and a lower hollow tubular bore arranged and configured so as to lie in vertical alignment with one another, wherein a lower inboard portion of the crossbar adapter is especially shaped, configured and adapted to mate and engage with an end of the crossbar, the upper hollow tubular bore being shaped and configured for passage therethrough of an upper side rail, the lower hollow tubular bore being shaped and configured for passage therethrough of a lower side rail thereby disposing the upper and lower rail passing through the upper and lower tubular bores in vertical alignment, a tightening plate also being located between the upper and lower hollow tubular bores which provides firm retention of said side rails therewithin upon tightening of said tightening plate;
• the mounting bases having an upper portion and a lower portion, the upper portion of the mounting base being especially shaped and configured to engage and become affixed to the bottom surface of a crossbar by means of an assembly bolt captured within and extending from the central groove formed within the lower portion of a crossbar, the lower portion of the mounting base being especially shaped and configured for affixation to an engagement feature of a vehicle roof especially configured for the mounting of accessories upon such roofs.