What Is Standard Work?
Standard work is the current best-known method for performing a task. It defines the sequence of steps, the time for each step, and the work-in-process needed. It is not a permanent procedure — it is the baseline from which you improve.
Without standard work, you cannot improve. If every operator does the job differently, you cannot measure, you cannot identify waste, and you cannot train consistently. As Taiichi Ohno said: "Without standards, there can be no kaizen."
Standard Work ≠ Work Instructions
Work instructions tell someone what to do. Standard work defines the optimal sequence, timing, and WIP for a process tied to takt time. Standard work is owned by the people who do the work and is updated whenever a better method is found.
The Three Documents of Standard Work
1. Production Capacity Sheet
Lists every process step with its manual time, machine time, and changeover time. This tells you the true capacity of each step and identifies which step is the constraint. Use the cycle time calculator to validate.
2. Standard Work Combination Sheet
A time-based chart showing the relationship between manual work, machine work, and walking for one operator across one cycle. It makes waste visible — you can literally see the waiting and walking.
3. Standard Work Layout
A floor plan showing the physical path the operator walks, the location of machines and materials, WIP points, and quality checks. This makes the flow visible and highlights unnecessary movement.
How to Create Standard Work
Common Mistakes
✅ Standard Work Done Right
- Created with operators, not for them
- Posted at the workstation, visible
- Updated every time a better method is found
- Audited regularly by supervisors
- Tied to takt time and customer demand
❌ Standard Work Theater
- Written by engineering, never consulted
- Filed in a binder no one opens
- Last updated 3 years ago
- No one audits compliance
- Not connected to actual production pace
🎯 Key Takeaway
Standard work is not bureaucracy — it is freedom. It frees operators from guessing, frees supervisors from firefighting, and frees the organization to improve systematically. If you are starting a lean transformation, standard work is step one.
Interactive Demo
Build a standard work combination sheet. Adjust element times and see how they compare to takt time.
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