Warping

The distortion of a flat cabinet panel or door caused by uneven moisture absorption, improper storage, or exposure to heat and humidity. Warped doors bow, twist, cup, or refuse to sit flat against the cabinet frame, creating visible gaps and difficulty closing. Warping is most common in solid wood doors without balanced construction (matching veneer on both faces) and in kitchens near dishwashers, ovens, or poorly ventilated areas.