A bench includes at least two feet and two seat plates. Each foot has a sustaining surface in a top thereof and a support frame in a bottom thereof. The seat plate is a rectangular plate. A plurality of protruding blocks is formed to a bottom surface of the seat plate, and a bolt block is embedded in each protruding block. By fastening the feet to the corresponding bolt blocks through holes with bolts, the feet are fixed to the seat plate so as to form a strong and fine bench.