Some systems include:
- Solid center seats where a solid material forms the chair seat.
- Solid wood, may or may not be shaped to human contours.
- Wood slats, often seen on outdoor chairs
- Padded leather, generally a flat wood base covered in padding and contained in soft leather
- Stuffed fabric, similar to padded leather
- Metal seats of solid or open design
- Molded plastic
- Stone, often marble
- Open center seats where a soft material is attached to the tops of chair legs or between stretchers to form the seat.
- Wicker, woven to provide a surface with give to it
- Leather, may be tooled with a design
- Fabric, simple covering without support
- Tape, wide fabric tape woven into seat, seen in lawn chairs and some old chairs
- Caning, woven from rush, reed, rawhide, heavy paper, strong grasses, cattails to form the seat, often in elaborate patterns
- Splint, ash, oak or hickory strips are woven
- Metal, Metal mesh or wire woven to form seat
