Choosing the wrong cold room size is one of the most expensive mistakes a Kenyan business owner can make. Go too small and you’ll be turning away stock within months. Go too large and you’ll be paying to cool empty space for years. Getting the sizing right from the start is worth taking time over.
Start With Your Storage Volume
The most reliable way to size a cold room is to calculate how much product you need to store at peak capacity — not your average load, but your busiest day of the year. Measure your stock in cubic metres (length × width × height of stacked goods), then add 25–30% as breathing room for airflow and accessibility.
As a rough guide:
| Business Type | Typical Cold Room Size |
|---|---|
| Small restaurant or café | 5–10 m² |
| Medium supermarket | 15–30 m² |
| Hotel kitchen | 20–40 m² |
| Flower farm (export) | 30–80 m² |
| Dairy processor | 40–100 m² |
| Hospital or pharmacy | 5–20 m² |
| Large distributor or warehouse | 100 m²+ |
These are starting points only. Your actual needs depend on stock turnover, delivery frequency, and whether you store one product type or several at different temperatures.
Key Sizing Factors to Consider
Turnover Rate
A business that receives daily deliveries can manage with a smaller cold room than one restocking weekly. If your supply chain is reliable, you don’t need to hold as much buffer stock.
Product Type
Bulky products like carcasses and whole fish take up more space per kilogram than tightly packed dairy cartons or pharmaceutical vials. Know your product density before you finalise dimensions.
Multi-Temperature Needs
If you store both fresh produce (2–8°C) and frozen goods (-18°C), you’ll need either two separate rooms or a partitioned unit with independent refrigeration — each requiring its own size calculation.
Future Growth
If you expect your business to grow in the next three to five years, size up now. Expanding a cold room later is expensive and disruptive. Adding 20–30% extra capacity upfront typically costs far less than building a second room later.
Working With a Contractor
A reputable cold room installer in Kenya will carry out a heat load calculation — a technical assessment that accounts for ambient temperature (critical in hot counties like Mombasa or Turkana), door opening frequency, lighting heat, and product respiration. This calculation determines the refrigeration capacity required and, by extension, confirms the room dimensions.
Don’t accept a sizing recommendation based on a rough guess. Ask to see the heat load calculation in writing.
For most small Kenyan businesses, a cold room between 10 and 20 m² is the practical starting point. Larger operations in food processing, horticulture, or distribution should commission a formal needs assessment before committing to any size. The cost of getting it right at the planning stage is always lower than rebuilding later.