Support foot apparatus that include a support foot structure that employs flexible flap members disposed on opposing sides of a central foot member, and that are configured for insertion into corresponding openings of a support foot location defined in an exterior surface of the chassis of an information handling system or other device or structure. Each of the flexible flap members may be provided with one or more securing apertures configured for placement over corresponding securing posts provided on an interior surface of the chassis to secure the flexible flap members of the support foot apparatus within the interior of the chassis at a support foot location to hold the central support body against an exterior surface of the chassis.