The friction µ between load and load bed is the single factor that most affects how many lashings you need. Here is how to choose a realistic value — and when an anti-slip mat pays off.
Introduction
In the load-securing formula, the friction µ is the value that carries the most weight. The higher µ is, the more the load holds itself, and the fewer lashings you need. That is why it is important to choose a realistic — and not too optimistic — value.
Typical µ values (EN 12195-1 / IRU)
Roughly, µ ranges from ≈ 0.45 for sawn timber on plywood down to ≈ 0.15 for smooth plastic/steel combinations, while an anti-slip mat raises the friction to ≈ 0.6. The full material pair table is collected in one place — see the article »Load securing per EN 12195-1« — so the figures do not drift apart.
What reduces friction?
- 01Moisture, ice, snow and oil on the load bed or the load.
- 02Dust, sand and loose particles between the load and the bed.
- 03Smooth, polished surfaces (plastic, painted steel).
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