Seat


A seat is a place to sit. The term may encompass additional features, such as back, armrest, head restraint but may also refer to concentrations of power in a wider sense. See disambiguation.

Types of seat

The following are examples of different kinds of seat:
The word seat comes from Middle English sete, Old English gesete/''geseten and/or sǣte seat, sittan to sit. Possibly related to or cognate with Old Norse sæti''. The first known use of the word seat is in the 13th century.

Ergonomics

For someone seated, the 'buttock popliteal' length is the horizontal distance from the rearmost part of the buttocks to the back of the lower leg. This anthropometric measurement is used to determine seat depth. Mass-produced chairs typically use a depth of.