A method of installing perforated plaster boards comprising a perforated pattern, wherein the boards are installed directly abutting, characterized in that dimensionally stable perforated plaster boards manufactured on an apparatus comprising a punching device for generation of the perforation and cutting stations for cutting the sides of the board to size, wherein - by means of a first grabbing and conveying equipment with grabs, a non-perforated plaster board is seized by a first side, inserted into the punching device, and held during the punching operation; - by means of a second grabbing and conveying device with grabs, a plaster board that has been perforated in the punching device is seized by a second side opposite the first side, the grabs being released only after the second grabs have seized the respective plaster board, and the second grabbing and conveying equipment leading the respective plaster board in a first conveying direction through a first cutting station where two opposite long sides (23, 24) of the plaster board are cut to size; - by means of a third grabbing and conveying device, the plaster board is seized by grabs, downstream of the first cutting station, by a side of the board that is displaced by 90° as compared to the side seized by the second grabbing and conveying equipment, the second grabs being released only after the grabs of the third grabbing and conveying device have seized the plaster board, and the third grabbing and conveying equipment leading the plaster board through a second cutting station in a second conveying direction perpendicular to the first conveying direction, with second sides (17, 19) being cut to size that are perpendicular to the sides (23, 24) cut to size in the first cutting station, are used so that the remaining fissure has a width of a maximum of a few tenths of a millimeter and, without prior filling, is subsequently closed by painting of the finished ceiling. - by means of a first grabbing and conveying equipment with grabs, a non-perforated plaster board is seized by a first side, inserted into the punching device, and held during the punching operation; - by means of a second grabbing and conveying device with grabs, a plaster board that has been perforated in the punching device is seized by a second side opposite the first side, the grabs being released only after the second grabs have seized the respective plaster board, and the second grabbing and conveying equipment leading the respective plaster board in a first conveying direction through a first cutting station where two opposite long sides (23, 24) of the plaster board are cut to size; - by means of a third grabbing and conveying device, the plaster board is seized by grabs, downstream of the first cutting station, by a side of the board that is displaced by 90° as compared to the side seized by the second grabbing and conveying equipment, the second grabs being released only after the grabs of the third grabbing and conveying device have seized the plaster board, and the third grabbing and conveying equipment leading the plaster board through a second cutting station in a second conveying direction perpendicular to the first conveying direction, with second sides (17, 19) being cut to size that are perpendicular to the sides (23, 24) cut to size in the first cutting station,