How to choose a lashing strap by lashing capacity LC

What do LC, STF and SHF mean on a lashing strap?

The key figure of a lashing strap is the lashing capacity LC, stated in daN. It is the force the strap may safely carry during top-over or direct lashing without exceeding the permitted load.

The label also shows the STF (Standard Tension Force), the pre-tension a standard hand force SHF of 50 daN generates through the ratchet. For top-over lashing the STF matters, because it defines how firmly the cargo is pressed onto the load bed. For direct lashing the LC is decisive instead.

How do I pick the right capacity and ratchet?

The number and strength of straps you need depends on weight, friction coefficient and lashing method. Heavy cargo on a smooth load bed needs either a higher STF or more lashing points, because friction alone will not stop it from sliding.

• Light strap (25 mm, LC up to 400 daN): for light cargo and bundling.
• Standard strap (35 mm, LC 750‑1500 daN): universal transport securing.
• Heavy-duty strap (50 mm, LC 2500‑5000 daN): for heavy and bulky goods.
• Long-handle ratchet: higher STF through greater leverage, ideal for top-over lashing.
• Push-through ratchet: compact, for direct lashing and tight lashing points.

What must the lashing strap label show?

Every lashing strap carries a permanently attached label to DIN EN 12195‑2. If the label is missing or unreadable, the strap must be taken out of service, because the permitted load can no longer be proven.

• LC in daN plus SHF and STF in daN.
• Webbing material, usually polyester (PES).
• Elongation at LC, typically under 7 percent.
• Strap length and manufacturer mark.
• Number of the standard DIN EN 12195‑2 and a warning note.

Inspect the strap before every use for cuts, tears, broken yarns and deformation on the ratchet and hooks. A strap must be discarded when damage exceeds 10 percent of the webbing width, when there are tears in the seam area or when the fittings show corrosion.

Frequently asked questions