Cost control has always been a constant struggle for construction companies. Poor shift scheduling on the job site can lead to increased operating costs, increased overruns, high worker turnover, and soaring grievances. Construction managers often spend countless hours on shift scheduling, trying to get their shifts and work schedules just right. Overstaffing wastes payroll dollars while understaffing results in lost time and overrun penalties. Construction shift scheduling presents many challenges. Most construction sites operate extended hours and have many job positions to schedule and multiple shifts to cover. Within each shift, construction workers must also be assigned to various tasks or job functions. Union and FLSA rules may place restrictions on work hours, overtime compensation, and the types of shift rotation that can be implemented. The schedulers must also consider time-off requests, labor rules, and worker availabilities when developing schedules for construction companies.