How to Size a Pet Mortuary Cooler: The Formula, Worked Examples, and the Mistakes That Cost Facilities Money

Cooler sizing questions arrive at our shop every week, and they almost all resolve with the same short piece of arithmetic. Here it is, worked through the four facility types we actually build for — and the three sizing mistakes that cost buyers real money.

The Formula

(Monthly case volume ÷ 30) × average holding days = working capacity needed. Then add 20–30% growth margin, because facilities grow into coolers faster than they expect and nobody has ever complained about surge room.

One honest caveat before the examples: “capacity” in bodies is not a fixed property of a room. A 10×12 holds a very different count of 15-pound cats than 90-pound shepherds, and rack configuration changes the answer again. The formula gets you to the right footprint class; the final spec should be run against your real animal size mix — which is a free consultation, not a guess.

Worked Example 1: Two-Doctor General Practice

40 cases/month ÷ 30 ≈ 1.3/day. Two-day average hold until family pickup or crematory route: ~3 concurrent cases. This is upright-cooler territory — a cabinet from our upright mortuary coolers collection covers it with headroom, in a footprint that fits a utility room.

Worked Example 2: Emergency and Referral Hospital

120 cases/month ÷ 30 = 4/day. Three-day holds (families deciding on disposition): 12 concurrent, ~15 with margin. This is the crossover zone where a compact walk-in starts beating multiple cabinets. The 6×8 walk-in ($10,494) or 8×10 ($10,800) are the usual answers here.

Worked Example 3: Pet Crematory

300 cases/month ÷ 30 = 10/day. Four-day staging ahead of cremation batches: 40 concurrent, ~50 with margin. Firmly walk-in territory with a rack system specced to the room — the 10×12 ($14,069) through 12×14 ($15,740) range anchors most operations at this volume. The batch-loading workflow is the entire argument for the room: cases stage in intake order, load out in cremation order.

Worked Example 4: Municipal Shelter

250 cases/month ÷ 30 ≈ 8/day — but holds run longer, often 7+ days around contractor pickup schedules: ~56 concurrent, 70 with margin. Two decisions change at this scale. First, footprint: 10×16 ($16,379) and up. Second, and more important: at week-plus holds, evaluate a walk-in freezer instead of or alongside the cooler — freezer systems run $12,704–$24,137 and are the correct equipment for extended municipal holding. The full cooler and freezer tables with live links are on our pet mortuary coolers page.

The Three Expensive Sizing Mistakes

1. Sizing to average instead of holding load. “We only get two a day” ignores that at a four-day hold, two a day means eight in the room at all times — before the bad week.

2. Ignoring the hold-time lever. Capacity problems are sometimes schedule problems. Tightening contractor pickup from weekly to twice-weekly can halve required capacity — cheaper than a bigger room. Run the formula both ways before buying.

3. Buying the room without the rack. Wire shelving wastes vertical space the formula assumed you had. Spec the rack system with the cooler — it is the difference between the calculated capacity and the real one.

Sanity-Check It Against Warranty Life

AMC walk-ins carry a Limited 15-Year structural warranty — which means the cooler you size today is the cooler you run in 2040. Size for the facility you are becoming, not the one you are. When the math lands between two footprints, send it to us with your floor plan; the sizing consultation is free and we will tell you honestly if the smaller room covers you.