Described herein is a drywall apparatus including drywall liner. A first gypsum-containing segment is disposed on an internal side of the drywall liner, and a second gypsum-containing segment is disposed on the internal side of the drywall liner such that a groove exists between the first segment and the second segment. The drywall liner connects the first segment to the second segment such that the first segment and the second segment are capable of hinging about a hinge axis parallel to the groove.