Abstract: Telescoping legs having outer and inner leg members increases stability of an adjustable worktable. The outer leg member has a tubular cross section of a geometric shape to accommodate the cross section of the inner leg member so that the inner leg member fits into the outer leg member. The assembly includes one or more sets of one or more protrusions inwardly projecting from the interior surface of the outer leg member to guide the inner leg member into the outer leg member. In their locations, the protrusions serve to further minimize the gap between the outer leg member and the inner leg member of the telescoping leg assemblies, thereby further improving the stability of the adjustable table. The protrusions are made by crimping, forming, additional hardware, or through other procedures.