Abstract: A cargo space organizer comprising a first elongated member, a second elongated member, a retention assembly and a plurality of extension members. The retention assembly is attached to a first end of the second elongated member and is configured for engaging a mating retention feature of the first elongated member. The retention assembly enables the second elongated member to be attachable at a plurality of different mounted positions between first and second ends of the first elongated member. A first one of the extension members is repositionably attached to the first end of the first elongated member. A second one of the extension members is repositionably attached to the second end of the second elongated member. Each one of the extension members is repositionable between a plurality of respective positions thereby enabling an overall length of the respective elongated member to be selectively increased or decreased.