Abstract: A ladder extension member is arranged for securement to an associated ladder step of an associated ladder, wherein the organization is dismounted relative to the ladder step for resecurement thereto to provide an extension step. The extension step includes a plurality of "J" shaped support members mounting a planar support web fixedly therebetween, wherein the spaced "J" shaped support members permit capturing of an associated ladder step between the support web and a cavity defined by the "J" shaped support members. A plurality of spaced bottom plates are arranged with slots to effect selective capturing of the associated ladder step therewithin, or reciprocatable to a rear position to permit removal of the organization relative to the ladder step for reorientation of the ladder step thereto.