Adjustable cantilever rack

An adjustable cantilever rack including a column of rectangular cross-section shape, a base secured to the bottom of said column, a load supporting arm, a channel-shaped bracket having a web portion secured to the inner end of said arm and flange portions adapted to fit around said column, rows of vertically spaced first apertures in said column, said first apertures having substantially flat bottom edges, a pair of second apertures in said flange portions of said bracket having substantially flat top edges and being vertically oriented in said bracket so as to be substantially aligned horizontally with the top surface of said supporting arm and being horizontally oriented in said bracket so that when aligned with one of said first apertures in said column a gap exists between said web portion of said bracket and said column, a substantially rectangular-shaped bearing pin insertable through said first and second apertures when aligned such that said flat top edges of said second apertures are supported by and in contact with the top surface of said bearing pin and the bottom surface of said bearing pin is supported by and in contact with said flat bottom edges of said first apertures, and at least one set screw threadedly engaged with a third aperture in said web portion of said bracket below said supporting arm and in contact with said column for adjustably controlling the width of said gap and thereby adjustably controlling the elevational position of the outer end of said supporting arm.