5S seems like the simplest Lean method. It has five steps, decades of history, and hundreds of descriptions online. Yet, 5S implementations return to the workshop agenda in the same plants year after year.

Before you stick anything to the floor

There's one thing worth knowing about 5S signage. In most plants, they're purchased last. They're purchased after the hard hat, after the tools, after anything else that seems more important. The tapes and stickers end up on the shop floor almost by the way, when the implementation is "almost ready.".

It's an interesting sequence, considering that signage is what makes people remember the standard without daily reminders. But before you hang anything on the wall or stick it on the floor, you need something that precedes every purchase: a trained team that understands why this system exists in the first place.

What cannot be implemented without training

5S seems simple at first glance. Five steps in the form of short slogans, with plenty of before-and-after photos online. It's easy to see it as something you can implement on your own, based on articles and goodwill.

In practice, it turns out that without solid team preparation, implementation stops at the fourth step, standardization . The first three steps can be accomplished by force: gathering people, sorting, cleaning, and designating zones. But standardization requires that every employee understands why a given standard exists and what happens if someone doesn't follow it. This can't be plastered on a wall; it must be taught.

Without training, specific problems arise. Each shift interprets the rules differently. One team puts tools away in their designated place, another decides "it's more convenient here." New employees enter the production hall, see the signs, but no one explains what they mean or what they should do with them. 5S audits become an unpleasant chore instead of a tool for improvement because people don't understand why they're being done.

What are the benefits of 5S training?

First, well-conducted 5S training builds a shared understanding of the system. The point isn't for everyone to be able to name five Japanese words, but for them to understand the logic behind each step. Why selection comes first? Why the location for a tool must always be the same? Why cleaning isn't a one-time cleanup, but rather a regular inspection of the workspace.

Second, training engages people rather than imposing rules from above. Employees who participated in workshops have a different approach to standards than those who were simply given stickers and told to comply. This difference in engagement directly translates to how long the implementation lasts.

Third, the training teaches how to conduct audits. And it is these audits that determine whether 5S will survive employee turnover, job changes, and daily production pressures.

Marking as system memory

When a team is trained and understands the rules, signage ceases to be mere stickers on a wall or machine. It becomes a silent reminder to every employee of the standard. Tape on the floor indicates which way to go. A shadow board indicates what's missing. A frame at the workstation indicates the current instructions.

These elements only work if people understand what they mean and why using them is so important. Training and signage aren't two separate things. They're two stages of the same process. One without the other results in either a trained team without tools or tools that no one understands.

Where to start?

If you are considering implementing 5S in your facility and don't know where to start, the answer is simple: with people.

Make sure your team understands the system you'll be implementing. Leantrix offers 5S training tailored to your specific needs – workshop-based, based on real-world processes, with audits and employee engagement. To see how their approach differs from a standard slide presentation, check out their website.

 

When people are ready, the signage will do its job.

At the end

The hardest part about 5S is maintaining it as teams change, production pressures increase, and no one has time for another audit. Training doesn't eliminate these challenges, but it ensures people understand why the standard exists and defend it themselves, rather than waiting for someone to remind them.

This is the difference between a company that implements 5S anew every year and one that does it once and is truly finished.