Abstract: A vented metal umbrella kit comprising a pair of substantially diametrically divided, prefabricated canopy half-sections, each half-section of which is prefabricated of a plurality of elongated sheet metal channel members tapered from end to end and secured in relatively side to side, interstraddling, fan-like relative disposition, a vertical support structure having a support arm adjustably secured at one end and a support disc removably attachable to the outer end of the support arm, means securing the umbrella half-sections in depending relation about the support disc, and a cone member of greater diameter than the support disc removably securable over the support disc and the attached end portions of the canopy half-sections assembled thereto.