FR
Container types & equipmentFlat Rack container
A container with no roof or sides, just a floor and end walls, for oversized or heavy cargo.
In practice
Cargo can hang over the sides (over-width) or ends. Needs professional lashing and often a survey. Slot cost is high because neighbouring slots may be lost.
Seen in the wild
Transformer on 40FR, OOG over-width 40 cm each side.