Gypsum board manufacturing method and gypsum board

Abstract

Provided is a plasterboard manufacturing method which understood a forming step for forming a platform-shaped formed body including plaster slurry and cover base paper disposed to cover at least a portion of a surface of the plaster slurry, which, in a cross-section of the formed body, the cross-section being perpendicular to the longitudinal direction, the cover base paper completely covers the outer periphery of the plaster slurry and partially overlaps itself, and the distance between an end section of the formed body in the width direction and a step part produced by the overlap of the cover base paper itself is 15 mm or more