Modulus

Sea Fastening, Grillage & Lashing

Restraint designed for the voyage, not the yard.

Sea fastening, grillage, and lashing designed to the load case — so complex cargo sits still when the sea does not.

The Problem

The problem is not the weight. It's the guesswork.

Lashing copied from the last job

Accelerations, CG, and deck strength are unique. Template lashing is a failure waiting for weather.

Grillage as timber under the crate

Grillages are structure. They spread load into the deck and hold the cargo through the voyage.

Fastening after the cargo is already stowed

Weld pads, stoppers, and lash points belong in the plan before the piece lands.

No link to motions

If seakeeping is not an input, the restraint is decoration. We design from the load case.

The Solution

01

Sea fastening designed to the voyage

02

Grillage as load-spreading structure

03

Lashing specified, not improvised

04

Voyage restraint in one drawing

How Sea Fastening, Grillage & Lashing works

Sea fastening design

Stoppers, weld-downs, and sea-fastening steel sized for the actual accelerations.

Grillage design

Frames that carry the cargo and protect the deck — geometry, welds, and bearing included.

Lashing design

Wire, chain, and webbing laid out against points that exist on both cargo and deck.

Voyage restraint

One specification from stow to discharge, tied to the transportation plan.

How we work

A 200-tonne transformer, calculated before the lift

Heavylift fails when the cargo is treated as a booking. We start with stress points, stability curves, and a packing design that can survive open water — then we execute against that blueprint.

Heavylift module on a barge at sea
“Where others see tonnage, we see a blueprint. The move is designed before a crate is lifted.”

OOG

Out-of-gauge cargo engineered, not forced into a box

4

Disciplines under one standard of precision

Talk to Our Engineering Team

Disciplines

Four disciplines. One standard of precision. Every engagement starts with engineering, not logistics guesswork.

The Physics Behind Every Voyage

Before a single crate is lifted, our marine engineers calculate stress points, stability curves, and load paths. It's the invisible math that keeps a 200-tonne transformer sitting still in open water.

OOG

Out-of-gauge cargo

ODC

Over-dimensional loads

Learn more

Request a feasibility study. We'll be in touch same day.

Tell us about the cargo, the route, and the constraints. We start with engineering, not a booking note.

  • — Feasibility study
  • — Marine & naval architecture review
  • — Packing and trading scope

Trusted across the GCC for OOG and ODC cargo movement.