Balustrade / Railing

A protective barrier at the edge of a roof terrace, balcony, raised floor, or stair opening. Building regulations Part K requires a minimum height of 1,100 mm for external balustrades accessible to the public or where a fall of more than 600 mm is possible. Structural fixings must resist the required horizontal loading. Glass, steel, and powder-coated aluminium are common materials for contemporary extensions.