What seat depth is standard for commercial stacking chairs?

Standard commercial stacking chair seat depths range from 15" to 18", with 16"–17" being most common. Seat depth affects: posture support (a seat too deep forces a forward-edge perch posture; too shallow doesn't support thighs); stackability (deeper seats reduce the number of chairs per stack); and weight capacity (deeper seats distribute load further from the back of the chair, affecting structural dynamics). For users of mixed heights and builds in a public environment, a 16"–17" seat depth works for the broadest population without being uncomfortable for either shorter or taller users. OfficeFurniture2go.com specifies seat depth for all commercial stacking chair models — call 1-800-460-0858.