Volume 3 of the series 'Typical Construction Methods from 1860 to 1960' consolidates detailed evaluations of building codes and regulations from the first half of the 20th century. Here, the reader will find precise descriptions of construction methods as well as approaches to dimensioning and load-bearing verification. Contents include: beams and masonry arch beams, columns and supports, stairs, roofs and roof structures, wooden roof constructions, load assumptions for roofs.