Abstract: Adjustable tool tray assembly having a vertical upstanding support member with a series of spaced diametrical holes passing through the support member parallel to each other, a "U" shaped bracket forming a base and supporting the vertical support member at its lower end about a mid-point of a central section of a "U" shaped bracket angulated members for bracing respective corners of the "U" shaped bracket with respect to the vertical support member, a pair of sleeve members disposed in telescopic and sliding relation with the vertical support member and having diametrical holes passing therethrough, a generally "U" shaped rigid frame having a mid-point of its central section thereof supporting an intermediate portion of one of the pair of sleeve members, and a generally rectangularly configured tray means supported from the "U" shaped rigid frame.