Driving Forklifts into Trucks & Trailers

Every time a forklift drives into a trailer, the operator is trusting that the trailer will stay put, the dock plate will hold and the floor won’t break. When a truck pulls away early or a trailer creeps, the forklift drops off the dock edge, and the operator is often killed.

• Forklift operators
• Warehouses
• Truck drivers

Before entering a trailer

• Trailer brakes set and wheels chocked, or a vehicle restraint (dock lock) engaged
• Dock light or signal shows it’s safe to enter; driver has the keys or is out of the cab
• Trailer not coupled to a tractor? Use trailer stands (jacks) under the nose so it can’t tip forward
• Dock plate or leveler secured, rated for the forklift plus load, with enough overlap
• Trailer floor checked for holes, rot or soft spots
• Enough lighting inside the trailer
• Trailer height and doorway clear the mast and overhead guard

Hazards

• Early pull-away: a driver leaves while the forklift is inside or on the plate.
• Trailer creep: the forklift braking and accelerating inside pushes the trailer away from the dock a little at a time.
• Landing gear collapse: trailers without a tractor can tip forward from the forklift’s weight.
• Floor failure: old or damaged trailer floors can give way.
• Dock edges: forklifts can drive off open dock doors with no trailer.

Safe practices

• Drive in and out straight, and slowly over the dock plate.
• Look for the trailer before entering; never assume it’s there.
• Keep loads low and tilted back; don’t overload the plate or floor.
• Keep dock doors closed or guarded when no trailer is in place, and mark dock edges.
• Use a communication system (lights, keys, signs) that the truck drivers follow.
• Wear your seat belt, and stay in the seat if a tip-over starts.

Last updated: October 2, 2026