Chain-link construction for elongated structural components

In a rigid elongated structural component associated with a load supporting article including a plurality of longitudinally overlapping link-like sections alternately aligned with perpendicular planes intersecting along a common geometrical axis, wherein each of the link sections includes a pair of leg elements having opposite longitudinal ends and spaced bridging elements rigidly interconnecting the leg elements adjacent to said ends thereof, at least one of the bridging elements of each of the link-like sections abutting one of the bridging elements of an adjacent one of the link-like sections, each of said link-like sections having a maximum width (W) as measured along one of said perpendicular planes substantially equal to the spacing between the leg elements as measured in the other of said perpendicular planes, each of said leg elements having a thickness (T) transverse to the common axis as measured in said other of the perpendicular planes, the improvement residing in said bridging elements being spaced apart by a distance along the common axis substantially equal to said maximum width (W) and the thickness of both of the leg elements (2T).