Kiln seasoning (drying) is the controlled process of removing moisture from timber using heated air and regulated humidity. Unlike air drying, which can take months or years, kiln drying reduces time to . However, “kiln seasoning time” is not a fixed number; it depends on wood species, initial moisture content (MC), target MC, thickness, kiln type, and drying schedule. Typical commercial kiln times range from 24 hours (very thin veneers) to 60+ days (thick hardwoods) .
Sources: USDA Forest Products Laboratory (Wood Handbook), NHLA Drying Manual, FPInnovations, and industrial kiln operator data. kiln seasoning time for timber