Finwall® is an exclusive structural wall system comprised of facade glass panels and vertical glass mullions designed to resist site specific design loads. Finwall® can be used in openings up to between 11′ and 16′ high, depending on facade glass type. The system provides the aesthetic design characteristics of an exterior flush-glazed wall using interior glass mullions or fins instead of metal mullions. The glass fins provide support to the facade glass plates. Finwall® is free from visual obstructions, limiting the need for metal framing to the perimeter, thus creating a seemingly floating glass facade. All-Glass Doors Oldcastle BuildingEnvelope® can incorporate all-glass entrance systems into our Finwall® systems. Door types and configurations may vary.