SHEET, DOOR HOLE SEAL, AND METHOD FOR PRODUCING THE SAME

The present invention reduces the generation of an unusual sound resulting from vibration of a part of a sheet. A first sheet includes: a peripheral portion which is to surround a service hole of a door inner panel; and a central portion surrounded by the peripheral portion, the first sheet having, along a boundary between the central portion and the peripheral portion, a plurality of first holes and a plurality of second holes each of which differs in size from each of the plurality of first holes.