One of the basic pieces of furniture, a chair is a type of seat. Its primary features are two pieces of a durable material, attached as back and seat to one another at a 90° or slightly greater angle, with usually the four corners of the horizontal seat attached in turn to four legs—or other parts of the seat’s underside attached to three legs or to a shaft about which a four-arm turnstile on rollers can turn—strong enough to support the weight of a person who sits on the seat (usually wide and broad enough to hold the lower body from the buttocks almost to the knees) and leans against the vertical back (usually high and wide enough to support the back to the shoulder blades). The legs are typically high enough for the seated person’s thighs and knees to form a 90° or lesser angle. Used in a number of rooms in homes (e.g. in living rooms, dining rooms, and dens), in schools and offices (with desks), and in various other workplaces, chairs may be made of wood, metal, or synthetic materials, and either the seat alone or the entire chair may be padded or upholstered in various colors and fabrics.
An office chair, or desk chair, is a type of chair that is designed for use at a desk in an office. … Modern office chairs typically use a single, distinctive load bearing leg (often called a gas lift), which is positioned underneath the chair seat.
Revolving Chair is a chair which has a single central leg that allows the seat to rotate 360 degrees to the left or right. Another name for revolving chair is swivel chair. Mostly, all office chairs are revolving chairs.
Most restaurant chairs are standard, four-legged, straight-backed designs used to provide short-term seating for customers.
Movie Theater Chair
Bar stools are a type of tall chair, often with a foot rest to support the feet. The height and narrowness of bar stools makes them suitable for use at bars and high tables in pubs or bars.