The stability of wood is highly dependent on how the board is cut from the log. Flat-sawn boards have grain patterns that run parallel to the growth rings, which are prone to cupping and shifting during humidity changes. Quarter-sawn or rift-sawn wood cuts the log in a way that aligns the grain vertically or at an angle to the surface. This orientation makes the boards structurally superior for resisting seasonal movement, ensuring they remain flatter and more stable in diverse climates.
Ask an ExpertHardwood
Which wood type is most resistant to seasonal changes?
Quarter-sawn and rift-sawn wood are generally the most resistant to seasonal changes. Due to the angle of the wood grain relative to the growth rings, these cuts experience significantly less expansion and contraction compared to standard flat-sawn lumber.