In construction, a nogging or nogging piece (England, Australia), dwang (Scotland, Central and lower North Island, New Zealand and South Island, New Zealand,) blocking (North America), or noggin (Greater Auckland region North Island, New Zealand),. They are also simply called nogs in New Zealand and Australia (No reference). They are horizontal bracing pieces used between wall studs or floor joists to give rigidity to the wall or floor frames of a building. Noggings may be made of timber, steel, or aluminium. If made of timber they are cut slightly longer than the space they fit into, and are driven into place so they fit tightly or are rebated into the wall stud.