What is the safe way to stock shelves and do night fill?
The safe way to stock shelves is to bring the roll cage or cart to the shelf, break cartons down on it at waist height, keep heavy lines between knee and shoulder height, use a step stool for anything above your shoulders and a kneeling pad for anything below your knees, and work at a pace you can hold for the whole fill. Shelf filling rarely involves one heavy lift. It injures people through thousands of small lifts done kneeling, twisted or overhead, usually at night, often alone, and faster at the end of the shift than the start. This guide covers setting up the aisle, top, bottom and heavy lines, and what the store owes you.
Last reviewed September 2026 · Applies to the Manual Handling Training for Hospitality and Retail Workers course.
Where shelf filling injuries come from
A carton of tinned tomatoes is not heavy. Picking up two hundred of them from a roll cage parked behind you, twisting to bring each one round, kneeling on tiles to cut it open and pushing tins to the back of a bottom shelf is a hazardous manual task under Australian work health and safety law. The risk factors are repetitive force, awkward posture and sustained kneeling, and they add up over a three-hour fill and again over four consecutive nights.
Top shelves cause a different set of problems. Placing 2 litre juice or cartons of drink above shoulder height loads the shoulders and neck, and doing it from the edge of the bottom shelf or a milk crate because the step stool is in the next aisle adds a fall. Reaching to the back of a deep shelf with an outstretched arm and a bottle in each hand is the posture that ends careers early.
Then there is pace. Night fill runs to a target, the store opens at a fixed time, and the last cage of the night is filled by a tired person who has been kneeling and reaching for hours. Fatigue reduces grip, balance and judgement. That is the cage that gets pulled down the ramp backwards or emptied from behind the filler because moving it would take a minute.
Setting up the roll cage and the aisle
Most of the safe method happens before a carton is opened. Push the roll cage or cart to the bay you are filling and park it beside or in front of you, not behind, so every carton comes towards you rather than round you. Take stock from the top of the cage and the near side first so you are not reaching over a wall of cartons. Break cartons down on the cage, on a cart or on a trolley at waist height, not on the floor, and cut them with a safety knife pointed away from your body and your other hand.
Bring the tools with you: the step stool, the kneeling pad, the knife and a clear route to the bin or the baler for cardboard. A step stool at the other end of the store is not a control. If your aisle is too narrow for the cage, or the cage has a jammed wheel, say so — the person filling the shelf is the one who knows, and consultation means that information is supposed to reach whoever plans the fill.
Keep the aisle passable. A loaded cage across an aisle, cartons on the floor and cardboard underfoot are trip hazards for you and for customers, and a cage left on a slope can roll into someone. Move cages with the stock loaded low and heavy items at the bottom, push rather than pull, and take ramps forwards with the cage in front of you and under control.
Top shelves, bottom shelves and heavy lines
The height a product lives at decides how you handle it. Between knee and shoulder is the zone where you can lift and place with a straight back and the load close; heavy and fast-moving lines should be planned into that zone, and if a heavy line has been planogrammed onto a top or bottom shelf, that is worth raising rather than working around for years. Slide items along the shelf rather than lifting and placing each one, and face up with your fingertips rather than a full grip where you can.
Above shoulder height, use the step stool or platform ladder, place items one at a time with two hands, and keep the heavier items off those shelves altogether. Never throw stock up, place it on tiptoe or stand on a shelf, a milk crate or the cage. Below knee height, kneel on the pad facing the shelf rather than stooping, keep the cage beside you, and stand up and move every so often rather than staying down for an hour.
Heavy lines — cases of water, bags of pet food and potting mix, cartons of drink, 10 kg bags of rice — are where the two-person rule, the trolley and the lift table earn their keep. Take them from the top of the pallet or cage, keep them close, turn with your feet rather than your waist, and if the carton feels wrong as it clears the stack, put it back and check it rather than adjusting your grip mid-lift.
- Heavy and fast-moving lines between knee and shoulder height
- Step stool or platform ladder above shoulder height; light lines only
- Kneeling pad below knee height, facing the shelf, cage beside you
- Slide rather than lift, turn with your feet rather than your waist
- Two people or a trolley for cases of water, pet food and potting mix
Pace, night fill and working alone
A fill target is an administrative decision that changes how much force and repetition your body absorbs per hour, which makes it a manual handling control the store is responsible for, not a personal challenge. A steady pace that includes the step stool and the kneeling pad is safer than a fast pace that skips them, and the safe pace does not change because a delivery arrived late or a public holiday is coming.
Night fill often means a small crew or one person per section, so the second person for a heavy carton is not around the corner. Plan the heavy lines for when help is available, keep a way to call for help on you, and rotate between kneeling, standing and cage work rather than doing three hours of one posture. Stiffness, aching wrists or a sore lower back after a fill are early signs of a problem, not a sign you are unfit for the job — report them while they are still minor.
What the course covers, and where your employer's duty starts
Module 6, Stock, Deliveries and Service Work, covers shelf filling by height, pallets and roll cages, cartons, night fill and cutting, and works through the night filler kneeling at a bottom shelf and the top-shelf juice scenario. Module 3, Identifying Hazardous Manual Tasks, explains repetitive force, sustained posture and why a fill that is fine for one hour is not fine for four. Module 7, Equipment, Aids and Tools, covers roll cages, step stools, platform ladders and lift tables and how to check them.
The course gives you the theory and the language. It does not decide your store's planogram, your fill targets or where the step stools live. Those are the employer's responsibility as the person conducting the business: to design the fill so heavy lines sit at safe heights, to supply and maintain the equipment, to set realistic targets and staffing, to induct you on the store's layout and procedures and to consult you when the way the work is done changes. Our certificate shows you have completed the theory; their induction and supervision make it real in the aisle.
Common questions
Sources
- Safe Work Australia — Model Code of Practice: Hazardous manual tasks — The national code the state and territory regulators adopt or mirror.
- Safe Work Australia — Lifting, pushing and pulling (manual tasks)
General information about Australian work health and safety duties, not legal advice. Your employer’s procedures and the regulator in your state take precedence.
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