To provide a laying plate making it hard for water to stay on the surface by allowing water on the surface to smoothly flow.

In the laying plate with one principal plane having a draining function, the one principal plate is flat, and an edge part of the one principal plane is provided with an inclined face inclining on the opposite side to the one principal plane toward the outside. Consequently, when the laying plate is laid on a balcony or the like with the one principal plane facing vertically upward, since the inclined face provided at the edge part of the principal plane inclines downward toward the outside, water on the principal plane flows down along the inclined face. Water on the surface of the laying plate can thereby be smoothly drained to provide a deck, a bathtub mat, a kitchen mat, or the like on which water hardly stays. As a result, washing hung out to dry on a balcony can be easily dried, and slipping of slippers can be prevented.