HomeCalculatorsRo-Ro Lashing - Trailer Holddown

Ro-Ro Lashing - Trailer Holddown

Number of lashing points required for a ro-ro trailer from mass, acceleration and per-lashing WLL - CSS Code Annex 4.

Ro-RoLashingTrailer
Lateral force
157kN
Lashings per side
5each
Formula, assumptions, and limits

1.5 safety factor. Short voyage / sheltered water: 0.3 g; ocean worst: 0.6 g. Combined chains + web straps per ILU requirements. Check ramp angle + lashing angle (≤ 45° from vertical).

Symbol legend

SymbolMeaningUnitSource
Working load limit of lashingkNlashing cert
Transverse accelgCSS Code