The verdict in three sentences
Flat-rate delivery is an accounting error: it subsidizes distant customers with the margin of nearby ones. A zone grid (zone 1/2/3 at 1,000 / 2,000 / 3,500 FCFA) aligns price with real cost — 90 to 140 FCFA/km on a motorbike plus ride time. Add a free-delivery threshold at 15,000-25,000 FCFA and you lift the basket without burning margin.
Why flat rate ruins you on the edges
The real cost of a drop depends on distance, time, and order density on the run. A rider chaining 6 grouped stops costs three times less per parcel than an isolated round trip to the outskirts.
| Logistics parameter (Nairobi, 2026) | Order-of-magnitude value |
|---|---|
| Motorbike cost per km | 90-140 FCFA |
| Average time per drop | 22-38 min |
| Order density / run | 4-7 |
| Optimal free threshold | 15,000-25,000 FCFA |
| Failure rate central zone | 4-7% |
| Failure rate outer zone | 10-16% |
| Fuel cost / run | 3,000-6,000 FCFA |
The dense center is profitable even at 1,000 FCFA; the isolated outskirts lose money below 3,000 FCFA. A single average rate masks this reality and destroys overall margin.
The three-zone grid that holds
Split the city into three rings by distance and density. Charge real cost plus a fixed margin, and trigger free delivery above a basket that absorbs transport.
| Zone | Distance | Customer rate | Estimated real cost | Delivery margin |
|---|---|---|---|---|
| Zone 1 (center) | 0-4 km | 1,000 FCFA | 550-750 FCFA | +300 FCFA |
| Zone 2 (mid) | 4-9 km | 2,000 FCFA | 1,200-1,600 FCFA | +400 FCFA |
| Zone 3 (outer) | 9-16 km | 3,500 FCFA | 2,400-3,100 FCFA | +500 FCFA |
| Free above | — | 0 FCFA | absorbed | basket > 20,000 FCFA |
| Express (< 90 min) | all | +1,500 FCFA | +800 FCFA | +700 FCFA |
2026 estimate: this grid turns delivery from a loss center into a positive-margin line of 300-700 FCFA per drop, while pushing the basket toward the free threshold.
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Mini case study
James delivers 30 orders/day in Nairobi at a flat 2,000 FCFA. His outer (zone 3) drops cost 2,800 FCFA: he loses 800 FCFA on each, about 8 drops/day = 6,400 FCFA daily loss. He switches to the zone grid: zone 3 charged at 3,500 FCFA. Result: those 8 drops go from -800 to +500 FCFA each, a swing of 10,400 FCFA/day, plus an average basket climbing from 22,000 to 24,500 FCFA thanks to the free threshold shown at 20,000 FCFA.
FAQ
Will customers accept paying more on the outskirts? Yes, if the grid is transparent and shown before payment. In Nairobi in 2026, outer areas know the ride is longer; what irritates is a hidden surcharge, not a clear zone rate of 3,500 FCFA.
How do I define zones without costly software? Three rings by distance (0-4, 4-9, 9-16 km) cover 90% of cases. A geolocation calculation at checkout is enough; no complex TMS needed to start.
Where should I set the free-delivery threshold? Place it at 15,000-25,000 FCFA, roughly 1.5 to 2 times your average basket. Too low and you give delivery away at a loss; too high and the incentive doesn't fire.
How do I cut the outer-zone failure rate (10-16%)? Confirm address and presence by WhatsApp before departure, and favor prepaid mobile money on those zones — a prepaid parcel is almost never refused.
What's the gain from a grouped run? Grouping 6 stops instead of 3 roughly halves the cost per parcel. A route-optimization engine, even a simple one, pays off quickly beyond 20 drops/day.
Let's talk about your project. We build a zone delivery grid and free threshold directly into your checkout. WhatsApp +221 77 596 93 33.
Mohamed Bah
Fondateur, Kolonell
Passionate about digital and entrepreneurship in Africa, Mohamed has been helping Sénégalese businesses with their digital transformation since 2020. Founder of Kolonell, he believes every SME deserves a professional and accessible online présence.
