Nominal length of loadbearing wall

The nominal length of loadbearing wall construction referred to in paragraph 3.6(b) should be taken as follows — (a) in the case of a reinforced concrete wall, the distance between lateral supports, subject to a maximum length not exceeding 2.25H; (b) in the case of an external masonry wall, or timber or steel stud wall, the length measured between vertical lateral supports; and (c) in the case of an internal masonry wall, or timber or steel stud wall, a length not exceeding 2.25H, where H is the storey height in metres.