Running a Humanitarian Warehouse: Layout, Stock Control and Dispatch

A humanitarian warehouse only earns its keep once it is run well: stacks capped at 2.5 metres on a 3:1 height-to-base ratio, stock tracked on FEFO bin cards, and a full count reconciled against the ledger at least once a year.

Deploying the structure is the easy half of the job. A mobile storage unit or a semi-permanent steel warehouse is only as good as the discipline running inside it: what gets logged, where it sits, how high it is stacked, and how fast it can be found and dispatched when a distribution is called. Specialized Logistics Solutions has run warehouse floors in Juba for more than 35 years, holding stock for UN agencies and NGOs through South Sudan's outbreak and displacement responses, in a climate where heat, dust and an eight-month rainy season all work against stock left sitting badly. What follows is what happens once the roof is on: zoning, receiving, stacking, stock control, counting, dispatch and security, the operational half of the pillar that a modular-versus-permanent or deployment-speed piece does not cover.

How should a humanitarian warehouse be zoned before stock goes in?

Lay the floor out before the first pallet arrives, not around it. The Logistics Cluster's Logistics Operational Guide recommends keeping roughly 70 percent of the floor as usable storage and 30 percent as open circulation: space for aisles, loading bays, kitting areas and staging. Undersize the 30 percent and every later step, from receiving to dispatch, gets slower, because there is nowhere to stage an incoming pallet without blocking the aisle behind it.

Aisle width follows how stock actually moves. A small facility working entirely by hand can run aisles of 0.5 to 1 metre; a larger operation moving pallets by forklift needs 4 to 5 metres to turn safely. Leave a fire lane of at least 40 centimetres between cargo and any wall, never less, whatever the pressure on floor space.

Zone by how often an item moves, not by category alone. High-turnover stock, the Aquatabs, the jerrycans, the items that leave every week, sits closest to the loading doors. Slower-moving stock sits further back. The exception is anything bulky or awkward to manoeuvre: even if it rarely moves, position it near an exit so it never has to be walked past a live aisle when it finally does. Mark loading bays, kitting areas and staging zones clearly enough that a new arrival, whether that is a person or a consignment, can read the floor without being told where anything goes. Revisit the layout when the caseload shifts. A zoning plan built around a steady WASH pipeline stops working the week a cholera response doubles the throughput of Aquatabs and PUR sachets moving through the same doors.

What should happen to stock the moment it arrives?

Inspection happens at the door, not later. Every incoming item should be checked for its expiry date at the point of reception, against the packing list and the purchase order, before it is logged into the ledger or moved to a bin. The Logistics Cluster's guidance is blunt on the threshold: warehouses are advised not to accept goods with less than six months of shelf life remaining. Accept short-dated stock without flagging it and you have bought a write-off, not inventory.

Quantity and condition checks matter as much as the date. Count against the packing list, open a sample carton, weigh or tally what the documents claim, and record any damage or shortfall on the Goods Received Note before the supplier's truck leaves the yard, because that document is the only leverage you have if a claim is disputed later. Name the person receiving the consignment on the same record; an unsigned Goods Received Note is close to useless when a discrepancy surfaces at the next count.

For medical and water-treatment items specifically, verify batch numbers and manufacturer marking against the accompanying certificate. At least one in ten medicines circulating in low- and middle-income countries is substandard or falsified, and a warehouse is the last checkpoint before that risk reaches a distribution point. An authorised distributor's own stock does not remove the need for this step; it just means the paperwork behind it is real, and the receiving clerk should still check it rather than wave a familiar supplier through.

How high can you stack, and what actually brings a stack down?

Two limits govern a stack, not one. Height should not exceed 2.5 metres for heavy non-food items such as cartons, bales and sacks; lighter, bulkier goods like empty jerrycans can go higher if the base supports it. Whatever the item, the stack should never exceed a 3:1 ratio of height to the width of its base, and it should stop at least half a metre short of the ceiling so items can still be reached and inspected. A single stack should not exceed 6 metres in either direction, a maximum footprint of 6 by 6 metres; beyond that you are creating a separate stack, not extending one.

Pallet discipline decides whether these limits hold in practice. Stack like with like, so a load is not resting unevenly on cartons of a different size or condition underneath it. Keep cartons and sacks within the edges of the pallet; an overhanging load is what actually starts a collapse, not the height alone. Double-stacking loaded pallets is best avoided for anything held medium to long term, since the bottom pallet and the load beneath it are rarely rated to carry a second full pallet indefinitely, and a warehouse with a dirt or compacted-gravel floor gives an uneven base that makes the risk worse than it would be on a slab.

None of this is about tidiness. A stack that comes down in a warehouse holding water-treatment chemicals or medical supplies is a safety incident and a stock-loss event in the same moment, and it is the kind of loss that a bin card cannot explain after the fact.

How do bin cards and a stock ledger keep FEFO working?

FEFO, First Expired First Out, only works if the paperwork tells you which pallet expires first without you having to open every box. A bin card records the item description, consignment details, the date and quantity of every receipt and release, and a running balance, plus the expiry date, batch or lot number and date of manufacture for anything that needs it. It sits with the stack it describes, legible from the floor, in the language the warehouse team actually works in. A stock ledger holds the same information centrally, across every bin in the facility, so a manager can answer what the warehouse holds and how long it has to move it, without walking the floor to find out.

The flagging rule is what turns FEFO from a principle into a routine. Anything with less than three months left before expiry, or already expired, is flagged and reported to the programme team responsible for it. Good practice tightens the contact as the deadline closes in: a formal weekly or monthly notice once an item has one to three months left, then a direct phone call once it is inside a month. Expired stock is pulled from the active stack immediately and held apart from saleable inventory, and every open order against it is put on hold until someone confirms it will not be shipped by mistake.

Donated and pooled stock, which arrives with mixed remaining shelf life more often than procured stock does, is exactly where this discipline earns its cost. A card that is filled in by hand in a facility with no reliable power still works, provided it is updated the moment stock moves, not at the end of the week from memory. A ledger that is only as current as the last quiet afternoon is not a ledger, it is a guess with a spreadsheet attached.

How often should a warehouse count its stock, and what happens when the count is wrong?

Two counting rhythms run at once. Cycle counting checks part of the inventory on a rolling basis, dividing stock into A, B and C groups by value or activity and counting a rational share of each group every review period, so high-value or fast-moving lines get checked more often than slow ones. A full physical inventory covers everything, and the Logistics Cluster advises running one at least once a year, more often on a large or high-throughput facility, and after any period where the site has had to run flat out, such as the acute phase of an outbreak response.

When the count does not match the ledger, the discrepancy gets classified, not just noted: a loss, fewer units than the ledger shows with no waybill or release note to explain it; a surplus, more units than recorded, again unexplained; damage; expired, spoiled or infested stock; mislabelled stock booked against the wrong item or project; and stock that cannot be matched to any known consignment at all. Each category points to a different fix. A loss points at the release process, a surplus points at receiving, and mislabelling points at how bin cards were filled in at the point of storage.

The counting team writes up every discrepancy for follow-up, and a pattern across several counts, not a single stray carton, is what should trigger a proper investigation rather than a shrug and a write-off. Treat the loss report as a diagnostic tool for the warehouse's own process, not just a compliance form to file and forget.

How do you dispatch stock without losing the paper trail?

Dispatch is where a warehouse either proves its discipline or exposes the gaps in it. A Goods Release Note, sometimes called a stock release order, acts as the pick order and captures the final quantities, the people who authorised and loaded the consignment, and the date it left the yard, closing the loop that the Goods Received Note opened when the same stock arrived. A waybill travels with the load itself, and a receiving partner, a transporter or a distribution site will often generate its own copy for its own tracking, which is one more reason your release note has to match what actually left the door, not what the order said should leave it.

Where a single consignment has to be split across more than one dispatch, whether because one truck cannot carry it all or because the receiving site can only handle a partial delivery, issue a separate release note against each load rather than one note covering a delivery that happens in stages. A single note covering three truckloads over three days invites exactly the kind of unexplained gap that a loss report later struggles to trace.

Speed downstream depends on discipline upstream. UNHRD's prepositioned stock can be dispatched within 48 hours of a partner's request, and that is only possible because the stock behind it is already logged, located and release-ready before the request arrives. A warehouse with clean bin cards and an accurate ledger can quote a truck-loading time in hours; one without them spends that time searching a yard instead. Reconcile the release note against the ledger the same day the truck leaves, not at the next physical count, because a discrepancy is far easier to trace to one dispatch than to guess across a month of them.

How do you secure a warehouse holding relief stock?

Relief stock is a target precisely because it is valuable and because it often sits in areas where formal policing is thin. A storage facility needs an intact perimeter, walls or fencing sturdy and continuous enough to stop casual theft, with no blind corners and enough lighting to hold through the night, not just at the gate.

Guarding is a staffing problem as much as a fencing one. Cover every hour of the day and night with enough guards to run regular 8 to 10 hour shifts; a single live-in guard, however trusted, will fatigue and stop being reliably alert overnight, which is precisely when a facility is least watched otherwise. Every visitor and every vehicle should be logged in and out, and outsiders should need explicit permission before they reach the stack, not just the gate.

Higher-value or higher-risk lines, medical stock, cash-equivalent items, anything attractive enough to walk, are worth a second layer inside the main store: a locked cage or a segregated room with its own access log, so the perimeter is not the only barrier standing between that stock and the door. None of this replaces the paperwork above, it protects it. A bin card is only as good as the assurance that nobody moved the stock it describes without it being recorded.

None of this is abstract for us. Our warehousing and storage service runs on exactly this regime: zoned floors, FEFO-driven bin cards, an annual full count and a release note that has to match the ledger before a truck leaves, because we hold stock in Juba for UN agencies and NGOs who cannot afford a distribution built on a count that turns out to be wrong. We have run that discipline through South Sudan's cholera response and its displacement crises for more than 35 years, as an authorised distributor for Aquatabs, P&G Purifier of Water, Oxfam tanks and Butyl products, Multiquip and Aussie Pumps, and Hallgruppen structures, which is also why the stock on our own shelves carries the manufacturer paperwork a receiving inspection is meant to check.

Frequently asked questions

What is FEFO, and why does it matter more than FIFO for relief stock?

FEFO is First Expired First Out: dispatch the stock closest to its expiry date first, regardless of when it arrived. The Logistics Cluster requires perishable, date-sensitive items to be tracked and dispatched by FEFO, because donated and pooled relief stock routinely arrives with mixed remaining shelf life, so the oldest delivery is not reliably the one closest to expiring.

How high can you stack cartons or pallets in a humanitarian warehouse?

No higher than 2.5 metres for heavy items, and never more than a 3:1 ratio of height to the width of the base, stopping at least half a metre short of the ceiling. Lighter, bulkier items such as empty jerrycans can be stacked higher where the base supports it.

How often should a warehouse run a full stock count?

At least once a year, more often for a large or high-throughput facility, on top of rolling cycle counts that check higher-value or faster-moving stock more frequently than the rest.

What does a bin card actually record?

The item description, consignment details, every receipt and release with its date and quantity, a running balance, and, where relevant, the expiry date, batch or lot number and date of manufacture. It stays with the stack it describes and should be legible from the floor.

How long should a relief warehouse's guard shifts run?

Regular 8 to 10 hour shifts, with enough guards rostered to cover every hour of the day and night. A single live-in guard is discouraged because fatigue reduces alertness precisely when the facility is least watched otherwise.

Talk to a distributor who already runs a Juba warehouse floor

Related reading

• sizing a modular warehouse for field operations

• what a mobile storage unit is and when to deploy it

• wind and snow load ratings for warehouse tents

Specialized Logistics Solutions is an in-country distributor headquartered in Juba, authorised for Aquatabs (Medentech/Kersia), P&G Purifier of Water, Oxfam tanks and Butyl products, Multiquip and Aussie Pumps, and Hallgruppen structures, and registered on the UN Global Marketplace as vendor 380716. We have run warehouse floors under this same zoning, FEFO and counting discipline through more than 35 years of South Sudan's outbreak and displacement responses. Request a quotation and tell us what you need stored, how fast it needs to move, and which county it is going to next.