ARCHITECTURAL CURVES / DRYWALL Flexible Gypsum Board An Arch Requires a Verified Radius, Not Just a Thin Sheet Curved partitions, reception desks and arched ceiling details can be finished with purpose-specified gypsum lining products. The achievable curvature depends on the exact panel, thickness, bending direction, moisture-conditioning method where permitted and supporting frame—not merely the architect’s rendered image. Buyer focus: Before ordering, confirm product type,