5S Audits Ensuring Consistent Application of the 5S System

A useful 5S audit checks whether tools, materials, information, and work areas support the job and make abnormalities visible. It should produce a short list of owned actions—not a score that rewards a tidy-looking area while hiding hazards or process problems.

This page provides an example 25-item checklist and a simple 0–2 scoring method. The checklist and scoring rule are a sample local tool, not an industry standard, certification, or substitute for a required safety, quality, maintenance, or regulatory inspection. The five S terms are commonly translated as Sort, Straighten, Shine, Standardize, and Sustain; organizations may use different translations or add Safety as a sixth S.

Set the audit boundary and ownership

Choose one defined zone, such as a machine cell, weld station, tool crib, or inspection bench. Mark the boundary on a current layout or describe the included equipment, storage, walkways, and records. Ask the people who do the work what makes the area safe and ready for the next job. Have the area owner and a second trained reviewer walk the zone together.

For a new pilot, a weekly review for four weeks can reveal whether the checklist is useful; it is only a starting cadence. Adjust frequency to risk, process changes, prior findings, and the site’s existing safety and quality schedules. Operators can make brief shift-start checks, while a supervisor or cross-functional reviewer can check whether actions close and standards remain workable.

Safety stop: If the walk finds a condition that may expose someone to immediate serious harm, stop the audit, follow the site’s emergency and hazard-control process, protect people from exposure, and notify the responsible safety lead. Do not wait for a score or use this checklist to decide whether a legal requirement has been met. OSHA recommends regular inspections with worker participation and documented correction; its walking-working-surface standard separately specifies housekeeping and hazard correction duties.

Use a simple, transparent scoring rule

Example scoring rubric created for this checklist; agree the standard before scoring

Score	Meaning	Required response
0	Standard is absent, not met, or a required control is not working.	Record the observed condition, owner, due date, and immediate control if needed.
1	Standard is partly met or works inconsistently across shifts or jobs.	Describe the gap and agree a specific correction or test.
2	Agreed standard is present and works for the observed job.	Record evidence and keep monitoring; do not treat a 2 as proof of regulatory compliance.
N/A	Item does not apply to this zone or process.	Write why and remove it from that audit’s denominator.

For an area with 25 applicable questions, the maximum is 50 points. Example percentage = points earned ÷ (2 × applicable questions) × 100. If two questions are N/A and the remaining 23 earn 35 points, the result is 35 ÷ 46 × 100 = 76.1%. The percentage is a local trend aid only. Keep the raw score, scope, exclusions, hazards, and open actions with it. Do not compare areas with different checklist scope as if their scores measured the same thing.

Example 25-item 5S audit checklist

Before the walk, write the area, shift, date, reviewer, operator/area owner, applicable scope, and current standard reference. Score each observation from 0 to 2. Describe evidence in the action column when a score is 0 or 1.

Copyable example checklist; adapt questions to the work and local controls

5S step	Observable check	Score 0–2 / N/A	Action, owner, due date
Sort	1. Unneeded tools and material are identified and removed through an approved process.
Sort	2. Suspect, expired, or obsolete material is identified and segregated for disposition.
Sort	3. Red-tagged items have a named owner and a review date.
Sort	4. The current job’s required tools and documents are distinguishable from items for other jobs.
Sort	5. Storage quantity limits are visible where overstock can block work or conceal defects.
Set in order	6. Frequently used tools have identified storage locations near their point of use.
Set in order	7. Material locations show part identity, status, and maximum quantity where needed.
Set in order	8. Walkways, exits, electrical panels, and access routes are clear under site rules.
Set in order	9. Incoming, in-process, accepted, and held material have distinct controlled locations.
Set in order	10. The next operation can identify where to send completed work and its records.
Shine	11. Cleaning and inspection tasks are defined without requiring unsafe access or machine operation.
Shine	12. Leaks, abnormal wear, loose items, or damage are reported through the maintenance process.
Shine	13. Chips, dust, or residue are controlled using the approved safe method for the equipment.
Shine	14. Inspection surfaces and gauges are protected and ready for use.
Shine	15. A new spill or abnormal condition is visible and has a known response owner.
Standardize	16. The area standard shows the required locations, limits, and condition for a normal shift.
Standardize	17. The posted or digital instruction is the current approved revision.
Standardize	18. Responsibility and frequency for routine checks are assigned by role or shift.
Standardize	19. Abnormal material, equipment, or quality conditions have a visible escalation path.
Standardize	20. Visual labels match the controlled part, drawing, and quality identification requirements.
Sustain	21. The area owner and backup can explain the standard and how to report a gap.
Sustain	22. Previous corrective actions have an owner, due date, and evidence of closure.
Sustain	23. Closed actions are checked to confirm the problem did not return.
Sustain	24. Workers can raise an impractical or unsafe standard without being scored as noncompliant.
Sustain	25. Audit scope and timing are reviewed after a layout, product, staffing, or process change.

Turn findings into owned actions

After the walk, review each 0 or 1 with the area owner. Separate an immediate hazard from a housekeeping or flow improvement. Record the condition, temporary control, permanent action, owner, due date, and verification evidence. The person who closes an action should check that it works on the next representative shift and does not introduce a new risk. If the standard itself makes safe work difficult, revise it through the authorized process with operator, engineering, quality, and safety input as required.

Example audit record fields

Area / date / shift	Score and denominator	Finding	Owner / due date	Verification
Example cell / Week 1 / A	35/46 = 76.1% (illustrative)	One location label is missing; no immediate hazard identified in this example.	Area owner / sample date	Confirm label matches current part and location standard.

Read the trend without gaming the score

Use a stable checklist and scope when comparing an area over time. Show the raw numerator and applicable denominator next to the percentage. Review recurring findings and overdue actions; do not set a target that encourages reviewers to hide problems, pressure workers to improve scores, or skip necessary safety reports.

Illustrative weekly scores only; fictional values show the calculation, not real plant results

Area	Week 1	Week 2	Week 3	Week 4
Machining cell	32/50 = 64%	36/50 = 72%	39/50 = 78%	39/50 = 78%
Weld station	29/50 = 58%	33/50 = 66%	34/50 = 68%	38/50 = 76%

A flat score can mean standards are stable, actions are stalled, the checklist is poorly designed, or the process changed. Read the observations and action log before drawing a conclusion. Recheck high-risk areas using the site’s approved safety and quality processes, not this sample percentage.

Calibrate reviewers before comparing scores

Two reviewers can look at the same station and assign different scores if words such as “organized” or “clean” have no observable meaning. Before the first scored audit, select three checklist items and write down what a 0, 1, and 2 look like in this area. For a tool-location question, for example, a 2 could mean that the current approved tool is present in its marked location and can be identified without interrupting the job. A 1 could mean that the tool is available but the location label is missing or the tool is left in a second, unapproved spot. A 0 could mean that the tool is unavailable or a substitute creates a quality or safety concern. The example does not set a universal standard; the process owner must define one that fits the job.

Have both reviewers score the same three observations independently, then compare the evidence before discussing the number. If they disagree, ask what observation would resolve the question: a current drawing, an approved standard, a physical location, a status tag, or a worker demonstration. Update the checklist wording when reasonable reviewers interpret it differently. Repeat this calibration when the area, product mix, checklist, or reviewer group changes. Keep the standard and revision date with the checklist so that a score from one week remains comparable with the next.

Use photographs only when site policy permits them and the image helps explain a condition or verify an action. Avoid capturing people, customer drawings, proprietary screens, controlled parts, or personal information unless the site’s authorization process allows it. A photo supports the finding; it does not replace the written condition, temporary control, owner, due date, and closure evidence. Store it in the approved system and link it to the action record instead of circulating it through personal devices or chat.

Work through a filled 20-item example

The following fictional sample uses the first four questions from each 5S step. It demonstrates scoring and evidence capture; it is not a record of a real plant. Each row is one applicable item scored from 0 to 2. The four Sort checks score 7, Set in order scores 7, Shine scores 7, Standardize scores 7, and Sustain scores 7. The total is 35 points out of a possible 40, or 35 ÷ 40 × 100 = 87.5%. The 1 scores remain visible as work to resolve. A high average does not cancel a hazard, quality hold, or failed required control.

Illustrative 20-item audit for one fabrication cell; scores and findings are fictional

Step / check	Score	Observed evidence and next action
Sort: unneeded tools removed through approved process	2	No unneeded tools in the defined zone; red-tag log reviewed.
Sort: suspect material identified and segregated	2	One held lot is identified in the approved hold location.
Sort: red-tagged items have owner and review date	1	One tag has an owner but no review date; area owner adds a date.
Sort: current-job tools distinguishable	2	Traveler identifies the required tool set for the sample job.
Set: frequent tools have approved locations	2	Locations match the posted, current standard.
Set: material identity and status are visible	2	Part, revision, and status are readable at the rack.
Set: walkway and access routes are clear	2	Walk path and required access points are unobstructed.
Set: accepted and held work are separated	1	One container lacks the approved status card; verify before moving it.
Shine: cleaning tasks use an approved safe method	2	Task and responsible role match the local procedure.
Shine: leaks or abnormal wear are reported	1	New seepage is on the maintenance log; confirm the interim control.
Shine: chips or residue have a safe control method	2	Operator identifies the approved cleanup method.
Shine: gauges and inspection surfaces are protected	2	Gauge is in its assigned case and has current status.
Standardize: locations and normal conditions are documented	2	Reference is available at the cell.
Standardize: current approved revision is in use	2	Revision matches the controlled source.
Standardize: checks have role and frequency	1	Backup for the evening shift is not named; supervisor assigns coverage.
Standardize: abnormal conditions have escalation path	2	Operator describes who to contact and how to identify held work.
Sustain: owner and backup can explain the standard	2	Both describe the same location and status rules.
Sustain: prior actions have owner and due date	2	Open items appear in the action log.
Sustain: closed actions are checked for recurrence	1	One closed label action lacks a follow-up check; re-open verification.
Sustain: changes trigger scope and timing review	2	Recent layout change has a documented checklist review.

In this sample, the reviewer records four partial findings instead of converting them to a pass because the overall score looks strong. The action log names a responsible role and a real due date during the audit; it does not use the placeholder dates shown in this article. If a check is genuinely not applicable, write the reason and remove it from that audit’s denominator. Do not classify a failed check as N/A to improve the percentage. Keep a separate count of urgent hazards, overdue actions, repeat findings, and items excluded from scope.

Keep safety and environmental findings out of score averaging

Do not weight a serious hazard as several ordinary points or let a favorable total offset it. Record it through the site’s hazard process, protect people from exposure, and follow the responsible safety lead’s instructions. OSHA’s walking-working-surfaces rule requires covered workplaces to keep surfaces orderly and address hazardous conditions before use resumes; a local 5S score does not demonstrate compliance with that or any other legal duty. EPA’s Lean and Environment Toolkit describes 6S as 5S plus a distinct safety pillar. A site can use a separate safety checklist or integrate safety questions into 5S, but the chosen scope must be explicit and must remain connected to competent safety review.

Use the same discipline for chemicals, oils, chips, and waste. A tidy shelf can still contain an unidentified or incompatible substance. Do not move, combine, or discard a container as part of an audit unless the site’s authorized handling and waste procedures permit it. Refer uncertain identity, labeling, storage, and disposal issues to the responsible environmental, health, and safety role. The audit’s job is to make the condition visible, assign the correct route, and verify closure through the approved system.

Sources and related guidance

The Lean Enterprise Institute 5S reference describes 5S as a systematic visual-workplace practice and cautions against turning it into a bureaucratic housekeeping program. The U.S. EPA Lean and Environment Toolkit, Chapter 5 explains 6S as 5S plus a safety pillar and includes environmental, health, and safety checks. OSHA’s 29 CFR 1910.22 addresses covered walking-working surfaces, housekeeping, inspection, and correction of hazards. Apply the requirements that govern your facility and jurisdiction.

For a related manufacturing workflow, see the machine-shop flow guide. Start with one clearly bounded work area, involve the people who use it, and change the checklist when it does not help them make the work safer and easier to control.