Ladder leveling and stabilizing extension and foot

An rail extension for ladder of the type having a pair of generally parallel side rails and a plurality of rungs interconnecting said side rails, each of said rungs having a bottom surface, side surfaces, and a top surface, and a predetermined shape and size, said rail extension providing said ladder with increased stability and comprising:

• first and second mutually telescoping tubular members,
• said first telescoping tubular member having side walls and being telescopingly mated with a side rail of said ladder, said first telescoping tubular member being sized and shaped to conformingly mate with said side rail,
• said second telescoping tubular member being telescopingly mated with said first telescoping tubular member, said second telescoping tubular member being sized and shaped to conformingly mate with said first telescoping tubular member,
• attaching means for securely locking said first telescoping tubular member to one of said side rails, said attaching means comprising:
• a rung notch in one of said side walls of said first telescoping tubular member, said rung notch extending in from an edge of said wall and having an opening at said edge of said side wall, and
• a rung lock bar extending across said opening of said notch at said edge of said wall, said rung lock bar being removably attached to said side wall,
• said rung notch extending partially around one of said rungs and being sized and shaped so as to conformingly mate with said bottom and sides and said predetermined size and shape of said rung, said rung notch having a bottom adjacent said bottom surface of said rung, the portion of said wall adjacent said bottom of said rung notch being continuous and defining said bottom of said rung notch,
• said rung lock bar being positioned across said opening of said notch so as to extend across said top surface of said rung and thereby lock said notch and hence said first member to said rung,
• holding means for fixing said second telescoping tubular member to said first telescoping tubular member within a range of relative positions between said first and second telescoping tubular members so that the length of said pair of telescoping tubular members, when telescoped, can be adjusted to a position within said range and held in such position, and
• locking means, separate from said holding means, for locking said first telescoping tubular member to said second telescoping tubular member in any of said positions within said range.