2321 Timber pole foundations (0) Timber poles forming foundations for constructions 2322 Precast concrete block footings (0) Precast concrete blocks set in the ground on concrete pads as footings to support light timber and light metal construction 2323 Timber posts and blocks (0) Timber posts and blocks, driven or set in the ground on concrete pads as footings to support light timber and light metal construction 2324 Steel jack studs (0) Steel members, set into concrete footings poured into preformed bored holes 2328 Miscellaneous pole, post and block footings (0) Pole, post and block footings of various materials