Because all the building lots and houses are 25 feet wide, the joists, which are three-inch planks set upright, are cut in the saw mill only 24 feet long.

• 因为所有的建筑用地和房子都是25英尺宽，所以由三英尺的厚木板所搭起的托梁在锯木厂就给锯成仅有24英尺长。