The 5S Audit Checklist That Actually Finds Problems

A 5S audit checklist is only as good as the questions on it. Most plants run a generic 30-item list so vague that every zone scores 90%+ and nothing ever improves. "Is the area clean? Yes." "Are tools organised? Yes." That is theatre, not an audit.

This is the pillar-by-pillar checklist we see work across auto-component and food plants worldwide — the questions that actually surface problems, plus how to score them so the number means something.

Three rules before you start

• Audit the zone, in the zone. A checklist filled in the office is fiction. Walk the area with the checklist in hand.
• Photograph every finding. "Loose cable near panel 3" is an argument; a photo is a fact. Evidence is what turns a finding into a fix.
• Score honestly or don't bother. A zone that scores 100% every week is a zone nobody is really looking at. The goal is to find problems, not to look good.

1. Sort (Seiri) — is everything here actually needed?

• Is there any equipment, stock, or tooling in this zone that hasn't been used in the last 30 days?
• Are there obsolete fixtures, broken tools, or empty boxes taking up floor space?
• Is there a red-tag area, and does anything in it have a disposition date?
• Are personal items, old notices, or expired documents on the boards?
• Is work-in-progress within the agreed limit, or is it piling up?

2. Set in Order (Seiton) — a place for everything?

• Does every tool and item have a marked, labelled home (shadow board, floor marking, bin label)?
• Can a new operator find what they need in under 30 seconds without asking?
• Are walkways, fire exits, and equipment access kept clear and marked?
• Are min/max levels visible for consumables, or do they run out by surprise?
• Are gauges and measuring instruments stored where they can't be damaged?

3. Shine (Seiso) — clean, and is cleaning also inspection?

• Is the zone clean now — floor, machine, and the spots people skip (under-side, behind panels)?
• Is there a cleaning schedule with named owners, and is it being followed?
• During cleaning, are leaks, loose bolts, and wear being recorded — not just wiped past?
• Are cleaning materials available and themselves stored properly?
• Are sources of dirt (leaks, spills, dust) being eliminated, not just cleaned repeatedly?

4. Standardize (Seiketsu) — is the standard visible and current?

• Is there a visual standard (photo of "good") posted at the zone, and does reality match it?
• Are the first three S's assigned to specific people, not "everyone"?
• Are abnormalities obvious at a glance (colour coding, go/no-go marks, level lines)?
• Is the standard dated — and updated when the process changes?
• Could a supervisor from another line tell in 10 seconds whether this zone is in or out of standard?

5. Sustain (Shitsuke) — does it hold without the manager watching?

• Are 5S audits actually happening on schedule, or only before a customer visit?
• Is the score trending over time, and are low scores driving real actions?
• Do findings get assigned an owner and a due date — and get verified closed?
• Do operators correct small issues on their own, or wait to be told?
• Is 5S part of the shift routine, or a separate "project" that competes with production?

How to score it

Skip yes/no. Score each pillar 0–4 so the number can actually move:

Score	What it means
0	Pillar effectively absent
1	Some effort, major gaps
2	In place but inconsistent
3	Solid, minor lapses
4	Standard work — holds without prompting

A new zone usually lands at 1–2 per pillar. That is fine — the trend over weeks is the real measure, not the first number.

The mistakes that make 5S audits useless

• Scoring to please. If the plant head's walk always shows 95%, the audit has stopped finding anything.
• Findings with no owner. A finding nobody owns is a finding nobody fixes.
• Cleaning instead of Shine. Wiping the same leak every week is not Shine; eliminating the leak is.
• No photos. Without evidence, the next audit can't tell whether anything changed.

Skip the clipboard

You can run this checklist on paper. But paper audits get filled in the canteen, photos scatter across WhatsApp, and findings die without an owner. LeanOS 5S audit software runs this exact loop from a phone: walk the zone, snap a photo, let the AI suggest the defect and pillar, assign the fix, and watch the score trend per zone — with every finding tracked to a verified close. It is free to pilot on one zone for 30 days.