Kiln-dried Lumber

Any lumber placed in a heated chamber to reduce its moisture content to a specified range or average under controlled conditions. For softwood framing lumber, the moisture content of KD lumber is somewhat based on regional conventions but is most often an average of 12% by weight. In comparison, the moisture content of thoroughly air-dried softwood framing lumber is 15% to 20%.


one kWh is equivalent to 1,000 watt power draw over a 60 minute interval. One kWh is equal to 3600 kilojoules or 3412 BTUs.