To provide a chair having uniform cushion property without the fear of a breakage even when a comparatively thin wooden material is used for providing cushion property.

The chair 1 is constituted of a seat part 2, a leg part 3, a grounded part 4 and a seat back part 5 and obtained by bending a rectangular plywood having prescribed length in bending places 21, 31 and 41. That is, the leg part 3 is vertically formed at the front side of the horizontally formed grounded part 4 and the seat part 2 is formed in a horizontal direction from the leg part 3. Moreover, the seat back part 5 is formed by erecting at the rear side of the seat part 2. A coil spring 6 for supporting the seat part 2 from a lower part is fitted at the rear side of a part between the seat part 2 and the grounded part 4.