Why does seat depth matter for guest chairs, and what is a good depth?

Seat depth (the front-to-back measurement of the seat pan) determines how well the chair supports different body types. Too shallow: thighs don't get enough support, and users perch on the front edge uncomfortably. Too deep: the seat edge cuts into the back of shorter users' knees, restricting circulation. An ideal seat depth is 16"–18" for most adults. Chairs with 19"+ depth work well for tall users but can be uncomfortable for shorter users or children. For a waiting room or guest chair that serves a diverse public, 16"–17" depth is the most broadly accommodating range. Guest chairs with seat depth adjustment exist but are rare — most guest chairs have a fixed seat depth. FindOfficeFurniture.com — call 888-719-4960 for seat depth specifications on any chair model.