Optimizer 1 Cabinet System is 196cm high and holds up to 8 tiers. Each tier has a capacity of 200 one-centimeter-thick folders or 500 three-millimeter-thick folders. The cabinet, which occupies a mere 0.7 square meters of floor space, has a capacity of up to 2500 folders of 8.5"x11" or A4 size on five tier system.