Factors Affecting Masonry‐Labor Productivity

Abstract

Past studies of masonry‐labor productivity fail to accurately identify the factors that most affect masonry productivity and to quantify the factors' effects. This paper describes a methodology to identify and quantify the project‐related factors that significantly affect masonry productivity. Standardized data‐collection techniques are used to collect and consolidate data from 11 central Pennsylvania masonry projects. Exploratory analyses are performed to determine which factors most affect productivity. The factors identified are the work type, building element, construction methods, design requirements, and weather. More detailed analyses indicate that: (1) Data from multiple projects can be consolidated to obtain statistically valid results; (2) repetitive designs can effect a 30% improvement in productivity; (3) designs that require extensive layout and cutting can negatively affect productivity by as much as 40%; and (4) the effects of weather on masonry productivity are not well understood and deserve additional research.