TAPERED PLASTER BOARDS AND METHODS FOR MAKING THEM

Disclosed herein are plaster boards having a first surface and an opposing second surface, and a first edge and an opposing second edge that bound the first surface and the second surface. The first surface includes a first section and a second section, the first section being raised compared to the second section, the second section abutting the second edge. The second surface includes a first section and a second section that are separated by a boundary between the first edge and the second edge. The first section of the second surface is substantially parallel to the first section of the first surface. The second section of the second surface slopes toward the first surface from the boundary toward the second edge. Methods for making the plaster boards involve forming wet plaster material and drying the wet plaster material such that the wet plaster material hardens into a plaster board. 本文公开了灰泥板，所述灰泥板包括第一表面和相对的第二表面、以及界定所述第一表面和所述第二表面的第一边缘和相对的第二边缘。所述第一表面包括第一段和第二段，所述第一段与所述第二段相比凸起，所述第二段邻接所述第二边缘。所述第二表面包括通过所述第一