Performance Standard: Beams and posts, especially those 31/2 inches or greater in thickness (which normally are not kiln dried) will sometimes cup as they dry subsequent to construction. Cupping is usually not a structural concern if posts and beams have been sized according to National Forest Products Association span tables. Cups exceeding /4 inch in 5 1/2 inches are unacceptable.
Corrective Measure: The remodeler will repair or replace any beam or post with a defect exceeding the standard.