Nominal wall bracing
Nominal (minimum) wall bracing is wall framing lined with sheet materials such as plywood, plasterboard, fibre cement or hardboard, or similar. The wall frames are nominally fixed to the floor and the roof or ceiling frame.
The maximum amount that can be resisted by nominal wall bracing is 50% of the total racking forces.
Nominal wall bracing has to be evenly distributed throughout the building. If it is not, the contribution of nominal bracing is ignored because it has little effect.
The minimum length of nominal bracing walls must be 450 mm.