Out of gauge cargo

Out-of-gauge (OOG) cargo is freight that exceeds the internal dimensions of a standard container in length, width, or height and must ride on open-top, flat-rack, or platform equipment with the excess projecting beyond the box envelope. The carrier measures the overhang in each direction and declares it for stowage planning, because an OOG unit blocks the adjacent cell slots and changes lashing and crane work. Examples are turbines, transformers, boats, and structural steel. OOG moves attract surcharges for the lost slots and special handling, and the cargo is lashed to the flat rack or platform under the vessel’s cargo-securing manual.