Manual Freight Moving
Loading and unloading trailers by hand, where lifting strain and the dock edge are the main hazards.
Manual freight moving is loading and unloading trailers, containers and staging lanes with pallet jacks, hand trucks and lifting by hand. The main hazards are overexertion from lifting and carrying, contact with shifting freight and moving equipment, and falls at the dock edge and the gap between dock and trailer.
Trailers are often unloaded by hand under time pressure, and the freight is rarely ideal: heavy, top-heavy or unevenly packed cartons that cannot be held close to the body, stacked from the trailer floor to above head height. Lifts from the floor or above the shoulders carry the most strain, and the volume of a full trailer multiplies it.
The dock adds acute hazards. The dock edge is a fall to the yard below, the dock-to-trailer gap can open if a trailer creeps or pulls away, and pallet jacks and staged freight create struck-by and pinch exposures. Conveyors, powered jacks and better load design remove manual handling and the strain that comes with it, while dock levelers, edge protection and vehicle restraints keep a routine transfer from becoming a fall.
The main hazards and the controls that reduce them
Work down the hierarchy of controls: remove or substitute the hazard where you can, then use engineering and administrative controls. PPE is the last line of defense, not a substitute for the controls above it.
Overexertion from manual lifting and carrying
Repeated lifting, lowering and carrying of heavy or awkward cartons strains the back and shoulders, and long carries and twisting in a confined trailer add to it.
- Remove the manual handling with conveyors, powered jacks, and lift assists
- Design loads to a manageable weight and provide handholds
- Screen tasks with the NIOSH Lifting Equation and set weight limits
- Provide team-lift rules and rotation for heavy work
- Train lifting and carrying technique for trailer work as a supporting layer, not the primary control
Falls from the dock edge and trailer gap
An open dock door is a fall of around four feet at a standard-height dock, and the gap between dock and trailer can open if the trailer creeps forward or pulls away early. Edge protection, levelers and vehicle restraints are designed to prevent these falls.
- Fit dock levelers, bridge plates, and edge protection
- Use trailer restraints or wheel chocks to stop trailer creep
- Provide barriers and gates at unused dock openings
- Maintain lighting and mark the dock edge clearly
- Keep the dock plate and approach free of debris and ice
Shifting freight and moving equipment
Freight stacked in a trailer can shift and fall when the doors open or the load is disturbed, and pallet jacks and hand trucks move heavy loads through tight space. Struck-by and caught-between injuries follow.
- Open trailer doors clear of the potential fall line and inspect the load
- Stage and stack freight for stability, not just density
- Keep travel paths clear and control pallet-jack speed on grade
- Set foot-clear rules when lowering and positioning loads
- Wear safety footwear rated for the drop hazard
Pinch points at plates, doors, and jacks
Dock plates, overhead doors, and pallet-jack handles create pinch and crush points during routine transfers. Guarding, maintenance and hand positioning reduce the exposure.
- Guard and maintain overhead doors and dock levelers
- Report and repair damaged plates and door hardware
- Train safe positioning around jack handles and door tracks
- Keep hands clear of pinch points on plates and jack wheels
- Provide gloves suited to the handling task
The core safety programs for this work
Dock safety and trailer restraint
No one enters a trailer until it is restrained or chocked and the dock plate is secure. OSHA (US federal) requires wheel chocks, sand shoes or similar measures to keep the trailer from moving while employees are on the dockboard (29 CFR 1910.26(d)). A vehicle restraint interlocked with the dock door or leveler removes the judgment call.
Manual handling assessment
Freight tasks are screened with the NIOSH Lifting Equation so load limits, powered equipment, and team-lift rules are set against the actual demand rather than added after a back injury.
Load inspection at the door
Every trailer is opened clear of the fall line and the load is checked for shift before anyone reaches in. A load that has moved in transit is stabilized before hand-unloading begins.
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Safe Lifting: Techniques That Keep Workers Safe
OSHA sets no maximum manual lifting weight, so the NIOSH lifting equation estimates a safe limit using load, frequency, posture, height, and grip. NIOSH suggests team lifting or mechanical aids above 50 pounds. But weight isn't the whole story: lifting with the legs, holding loads close, avoiding twists, and working in the power zone cut the strain that causes back injuries.
Safety Assessment
Check the program behind your dock work, from hazard identification and JHAs to training and incident follow-up, in 20 questions with recommendations for low-scoring areas.
Start the assessment →Lifting and handling articles
Articles on safe lifting, forklift safety, and how one plant cut its lifting injuries.
Browse the articles →OSHA standards shown are federal; states with their own OSHA-approved plans can set different or stricter requirements. Consensus standards and NIOSH guidance are recommendations unless a regulation adopts them. Confirm the rules that apply to your site.
