Not every balustrade requires a top rail or a separate handrail. This depends on its design, intended use and applicable requirements. It is important to distinguish between a balustrade, which provides protection against falls, and a handrail, which provides something to grip.
Frameless glass balustrades may be designed without a top rail where the system and applicable requirements allow. On stairs, a suitable handrail is often needed for support. On decking and balconies, a top rail may form part of the balustrade design.
