What Is the Deflection Limit for Gypsum Board?
Mar 23, 2026
The typical deflection limit for gypsum board is L/240 to L/360, depending on whether it’s used for walls or ceilings. “L” represents the span between support points. TRUSUS insight: deflection defines how a board behaves as a structure, not just how it decorates. This small numerical limit ensures the board stays flat, joints don’t crack, […]
