To enable to stack a plurality of benches in multiple layers in less space.

At the both front corners of a seat plate having a sufficient width and length to receive several persons, a front leg 7 is provided which has a taper surface 7a where the front face width becomes gradually wider from the bottom to the top when viewed from front. At the both rear corners of the seat plate, a rear leg 9 is provided which is the same as the front leg and has a taper surface 9a where the front face width becomes gradually wider from the bottom to the top viewed from front. This bench is fell down in the longitudinal direction, one sides of the front legs 7 and the rear legs 9 are made to touch the floor, and the bench can be stood.