A leg assembly includes a first leg member and second leg member each having side-to-side width that is greater at the top end than the bottom end and a tapered outer surface. The second leg member has top-to-bottom length different than the top-to-bottom length of the first leg member. The leg members are adapted to connect individually or in combination to a support system such that at least three leg heights are selectably provided. The side-to-side width of the top end of the second leg member is approximately equal to the side-to-side width of the bottom end of the first leg member such that when the top end of the second leg members is connected to the bottom end of the first leg member, the combined leg members have a generally continuously tapered outer surface.