5S Workplace Organization

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SEF Reference Guide G01  |  Manufacturing OpEx Maturity Assessment

What it is

5S is a method for organizing a work area so it stays clean, orderly, and easy to read. The name comes from five Japanese words: seiri (sort), seiton (set in order), seiso (shine), seiketsu (standardize), and shitsuke (sustain). The method grew out of Toyota’s shop floor practice and was spread widely in the West by Hiroyuki Hirano’s book 5 Pillars of the Visual Workplace (English edition 1995).

5S is not a cleaning campaign. The goal is a workplace where anything out of place is obvious at a glance: a missing wrench on a shadow board, a rack over its maximum, an oil drip under a clean machine. When normal is clearly defined, abnormal jumps out, and people can act on it before it becomes a defect, a delay, or an injury.

Some operations add Safety as a sixth S. That is fine, as long as safety is built into every S rather than treated as a separate checklist.

Why it matters

• Time and delivery: less searching for tools, gauges, fixtures, and paperwork. Searching time is pure waste and it hides inside every job.
• Quality: fewer wrong-part and wrong-tool errors, less contamination, and clear locations for good, suspect, and rejected material.
• Safety: clear walkways, fewer trip hazards, unblocked exits and extinguishers, and spills that get noticed.
• Equipment: cleaning is inspection. Operators who clean their machines find leaks, loose fasteners, and worn parts early (see G02).
• Cash and space: sorting frees floor space and surfaces obsolete stock, extra equipment, and duplicate tooling that can be sold, scrapped, or redeployed.

Key terms

Term	Meaning
5S	A workplace organization method in five steps: sort, set in order, shine, standardize, sustain. Some operations add Safety as a sixth S.
Sort (seiri)	Remove everything not needed for the current work.
Set in order (seiton)	Give every needed item a marked, labeled home based on how often it is used.
Shine (seiso)	Clean the area and equipment, and use cleaning as a chance to inspect.
Standardize (seiketsu)	Write down and show what “good” looks like so every shift keeps it the same way.
Sustain (shitsuke)	Build the habit through routine audits, leadership attention, and follow-up.
Red tag	A tag attached to any item whose need is in doubt. The item moves to a holding area for a decision.
Red-tag holding area	A marked, temporary space where tagged items wait for a disposition by a set date.
Shadow board	A board with outlines of each tool so a missing tool is visible immediately.
Point of use	Storing an item where it is used, within reach, rather than in a central crib.
Min/max marking	Visible lines or labels showing the minimum and maximum quantity allowed in a location.
Photo standard	A photo of the area in its correct condition, posted in the area as the reference.
Leadership audit	A 5S audit done by a manager or leader (not only the area team), on a set schedule, with results posted.

How to do it

1. Pick a pilot area. Choose one area with a clear boundary and a willing team leader. Take “before” photos from fixed points you can repeat later.
2. Train the team in the area. One to two hours is enough. Explain the five steps, walk the area together, and agree on what the area is for.
3. Run a baseline audit. Use the template below. The score is your starting point, not a grade.
4. Sort. Red-tag anything whose need is in doubt. A practical rule: items used every shift stay at point of use, items used weekly stay nearby, items used monthly or less go to storage, and items with no known use in the last year are candidates to remove. Move tagged items to the holding area and give each one an owner and a decision date (two to four weeks is typical). Involve finance before scrapping inventory or assets.
5. Set in order. Place items by frequency of use and by the sequence of the work. Label every location and every item. Use shadow boards, floor outlines, and min/max marks. Test it: can a person new to the area find any item in about 30 seconds?
6. Shine. Clean everything, including inside cabinets and under machines. Record every abnormality found (leaks, damage, missing guards) and assign a fix. Set a short daily cleaning routine with named owners, typically five minutes at the end of each shift.
7. Standardize. Post a photo standard and a short checklist in the area. Adopt one plant-wide convention for floor marking colors and labels so every area reads the same way.
8. Sustain. The area team self-audits weekly. A leader audits on a set cycle (monthly is common) and posts the score on the area board. Low scores become actions with owners and dates, not reprimands.
9. Roll out. Move area by area until every part of the operation is covered, including offices, maintenance shops, warehouses, and outside yards.

What each maturity level looks like

OB-1 5S Workplace Organization

Level	Assessment wording	What it looks like on the floor	How to move up
1	Work areas are generally disorganized and hold unnecessary items.	Tools on benches and in personal drawers, old fixtures and scrap in corners, unlabeled containers, people searching for things.	Pick a pilot area, train the team, and run a first red-tag event.
2	5S is understood and applied in some areas.	One or two showcase areas are organized. Others look like Level 1. People can explain 5S but it depends on a few champions.	Finish Sort properly in the pilot areas: every unneeded item removed and dispositioned.
3	As Level 2, plus sorting has removed all unnecessary items from the workplace.	No obsolete tooling, dead stock, or broken equipment in work areas. The red-tag holding area is cleared on schedule.	Give every remaining item a labeled, marked home and add shadow boards and min/max marks.
4	As Level 3, plus the workplace is systemized: a place for everything and everything in its place.	Every item has a labeled location. Missing or extra items are obvious. Floor markings are consistent across areas. A visitor can find a tool in seconds.	Write the plant 5S standard, extend it to every area, and start a leadership audit schedule.
5	As Level 4, plus 5S is applied systematically in all areas, with periodic leadership audits.	Offices, maintenance, stores, and yards meet the same standard. Leaders audit on a calendar, scores are posted, and actions close.	Keep raising the standard: use audit findings to drive fixes at the source (why does the mess come back?).

Evidence to look for

Document

• Plant 5S standard, including the color and labeling convention.
• Completed audit sheets for the last three to six months, with scores and actions.
• Red-tag log showing items tagged, owner, decision, and date closed.
• Photo standards for each area.

Observation

• Walk the area. Open three random drawers and cabinets. Look on top of cabinets and under benches.
• Check shadow boards for missing tools and for tools with no outline.
• Pick an item and time how long it takes an operator to find it.
• Check that floor markings are respected: no pallets parked in walkways, no WIP outside its marked location.

Statement

(questions to ask and who to ask)

• Operator: “Where does this go? What do you do when a tool is missing? When was your area last audited, and what was the score?”
• Team leader: “What did the last audit find, and what is still open?”
• Plant manager: “When did you last do a 5S audit yourself? Which area scores lowest, and why?”

Management report

• 5S audit score trend by area, with the leadership audit schedule and completion rate.
• Open and closed 5S actions, and the age of open actions.
• Red-tag dispositions, including value of inventory or assets removed.

Common pitfalls

• Cleaning before a visit. A big clean-up before a customer audit, then a slide back. Without Standardize and Sustain it is not 5S.
• Skipping Sort. Labeling and shadow-boarding things you do not need just organizes clutter.
• Tape and paint without owners. Markings fade and get ignored unless someone owns the area and audits it.
• A 5S coordinator does all the work. If the people in the area did not build it, they will not keep it.
• Audits used as punishment. People start hiding things instead of fixing the causes.
• Stopping at the production floor. Level 5 requires all areas, including offices, maintenance, and stores.

Template

5S Area Audit Sheet

Area: ________ Auditor: ________ Date: ________ Audit type: Self / Leadership

Score each line: 0 = not started, 1 = poor, 2 = partly in place, 3 = in place with minor gaps, 4 = fully in place and sustained.

S	Check item	Score (0 to 4)	Notes and actions
Sort	No unneeded tools, fixtures, or equipment in the area
Sort	No excess, obsolete, or unlabeled material
Sort	No personal items outside designated storage
Sort	Red-tag items dispositioned by due date
Set in order	Every item has a labeled home
Set in order	Floor locations marked for WIP, carts, and equipment
Set in order	Shadow boards complete, no missing or extra tools
Set in order	Min/max marked on stock locations
Shine	Floors, benches, and machines clean
Shine	Cleaning checklist in place and signed
Shine	Abnormalities found during cleaning are tagged and tracked
Shine	Cleaning supplies stored in a marked location
Standardize	Photo standard posted and matches reality
Standardize	Plant color and label convention followed
Standardize	Walkways and emergency equipment clear
Standardize	Last audit score and actions posted on the area board
Sustain	Self-audits done on schedule
Sustain	Leadership audit done on schedule
Sustain	Previous audit actions closed
Sustain	Team can explain the area standard
Total	Out of 80. Percent = total / 80

First 30 days

• Week 1: Choose the pilot area and team. Take before photos. Train the team in the area. Run the baseline audit.
• Week 2: Run the red-tag event. Set up the holding area with owners and decision dates.
• Week 3: Set in order and shine. Label locations, build shadow boards, mark the floor, and log every abnormality found during cleaning.
• Week 4: Post the photo standard and cleaning checklist. Run the first leadership audit, post the score, and choose the next area.

Further reading

• Hiroyuki Hirano, 5 Pillars of the Visual Workplace: The Sourcebook for 5S Implementation, Productivity Press, 1995.
• Hiroyuki Hirano, 5S for Operators: 5 Pillars of the Visual Workplace, Productivity Press, 1996.
• Lean Enterprise Institute, Lean Lexicon entry “5S”: https://www.lean.org/lexicon-terms/five-s/
• Gwendolyn Galsworth, Visual Workplace/Visual Thinking, Visual-Lean Enterprise Press, 2005.
• OSHA 29 CFR 1910.176, Handling materials (requires permanent aisles and passageways to be appropriately marked): https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.176