A removable, upholstered seat frame for a chair or bench.

A removable upholstered wood seat cushion that fits into the framework of the chair.

A separate, upholstered seat, let into the framework of a chair seat. Also called a loose seat. Contrast Tight Seat.

A removable, upholstered chair seat.

An upholstered "loose seat" insert that is dropped into the frame of a dining chair and can be removed for reupholstery.

Same as "loose seat" separate upholstered wood frame, let into the framework of the chair seat.