Chainsaws have largely replaced cordwood saws for firewood preparation today. "Cordwood" means unsplit logs four feet long. A post and beam frame supplies this shelter for subsequent cordwood mortaring. Certain cordwood saws are run from a belt from a farm tractor power takeoff pulley. Most people consider cordwood saws unsafe and outdated technology. Most cordwood saws consist of a frame, blade, mandrel, cradle, and power source. Cordwood saws were once very popular in rural America. Logs too large for a cordwood saw were still cut by hand. Cordwood construction and wire wrap were other methods used. In cordwood construction, axial-leaded components were mounted between two parallel planes. Buildings made from cordwood construction survive in the county, especially in the Bailey's Harbor area. Cordwood construction can be sustainable depending on design and process. Temporary shelters can be used to cover the worksite and cordwood from rain. Whaling and cordwood industries also developed in Brookhaven. With cordwood/stackwall construction, the direction of heat flow is parallel to the grain.