The Four-Day Work Week Hits the Factory Floor: Early Results from Pilot Programs

By Jordan Sato

The four-day work week has been debated endlessly in white-collar circles. Now it is being tested where the stakes are highest: continuous manufacturing operations where downtime directly impacts throughput and revenue.

Three mid-size manufacturers — a precision machining shop in Ohio, a food packaging plant in Texas, and an electronics assembler in Oregon — launched four-day-week pilots in late 2025. The structures vary, but the early results share surprising commonalities.

The Compressed Model vs. the Reduced Model

Two of the three pilots use a compressed model: four 10-hour shifts instead of five 8-hour shifts, with total weekly hours unchanged. The Oregon electronics plant went further with a true reduced-hours model: four 8-hour shifts at the same weekly pay. All three staggered crews to maintain five-day production coverage.

The compressed model showed immediate productivity gains. Workers reported higher focus during longer shifts, partly because the promise of a three-day weekend changed the psychological calculus of each workday. Absenteeism dropped 22% at the Ohio facility in the first quarter.

What the Data Shows After Six Months

The Ohio machining shop saw overall output increase by 4% despite identical total labor hours. Scrap rates decreased, which management attributes to fewer shift handoffs and better sustained attention during longer runs. The Texas plant held output steady while cutting overtime costs by 60%.

The Oregon reduced-hours pilot is the most interesting case. Output per hour increased 12%, though total weekly output dipped roughly 3%. However, the plant's voluntary turnover rate dropped from 34% annually to under 10%, saving an estimated $800,000 in hiring and training costs.

The Skeptics Have a Point

Critics note that these pilots involve relatively small facilities with flexible production schedules. A 24/7 continuous process plant — paper mills, chemical plants, steel foundries — cannot simply eliminate a day of production. The model also creates challenges for maintenance windows and supplier coordination.

Still, for discrete manufacturers struggling with recruitment, the four-day week is proving to be a powerful tool. Several of the pilot companies report that job applications have tripled since announcing the schedule change.