Described in the following documents available from the manufacturer:
- BS-4001011 (19/5/17) - GA, Barras security grille.
- BS-4001011-2 (4/4/17) - Barras grille (face fix) assembly and weld details.
- BS-4001011-3 (4/4/17) - Barras grille (reveal fix) assembly and weld details.
- BS-4001011-5 (5/5/16) - Barras grille - Installation.
The vents are designed to be installed within a structural opening measuring 1020 mm wide by 1020 mm high by at least 120 mm deep (face fitted) or 215 mm deep (reveal mounted).