It is very rare to find a company that implement a 4-shift schedule. But, for company that implement an overlapping job between each shift, this 4 shift schedule should become one option. For example, your company implement 8 hour shift schedule and wants at least 2 hour to handover the job, because you choose to have a small number of staffs and 2 hours is the optimum hour to handover the job because of its complexity. The problem of having this type of shift is to manage your staff working hours and non working days. You have to calculate it carefully to prevent your state working policy violation.
You can use this 4 shift schedule template to help arranging your staff schedule. Instead of using it for arranging overlapping shift schedule, you can implement it also for managing 6 hour shift work.
Weekly Employee Shift Schedule Template - Mon to Fri - 4 Shift (69.0 KiB, 916 hits)
Weekly Employee Shift Schedule Template - Mon to Sat - 4 Shift (73.0 KiB, 695 hits)
Weekly Employee Shift Schedule Template - Mon to Sun - 4 Shift (79.5 KiB, 1,227 hits)