Woodland areas often have an abundance of “junk” timber that has little commercial value because of its small diameter, twisted grain or other imperfections. The modified timber-framing method developed by William Castle lets him quickly and easily turn this low-cost, local resource into beautiful houses. The shell of a 1,000-square-foot house was built over an existing foundation by a crew of three to four adults and two children in less than 10 days — for less than $10,000!