Measure four things
- Internal length, width and depth of the freezer well, measured inside the liner.
- The compressor step: most chest freezers have a raised section at one end over the compressor. Measure its length and height.
- The load line or maximum fill height marked inside many display freezers. Product above it sits in warmer air.
- Your tub's outside length, width and height, including any lid rim. Measure the tub, not the label's litre figure.
Try both orientations
For each zone, count how many tubs fit along the length and across the width, rounding each down to a whole number, then multiply. Rotate the tub 90° and count again; one orientation often gains a whole row. Layers = usable height ÷ tub height, rounded down.
Worked example
Assumptions: chest freezer well 1,300 × 560 mm inside, 750 mm deep, load line at 700 mm; compressor step 350 mm long and 250 mm high at one end; tub 245 × 170 × 115 mm (a 4 L rectangular tub, measured).
| Zone | Space (L × W × usable H, mm) | Best orientation | Per layer | Layers | Tubs |
|---|---|---|---|---|---|
| Main well | 950 × 560 × 700 | 170 along length: 5 × 2 | 10 | 6 | 60 |
| Above step | 350 × 560 × 450 | 170 along length: 2 × 2 | 4 | 3 | 12 |
| Total | 72 |
What the example shows
In the main well, placing the 245 mm side along the length gives 3 × 3 = 9 per layer (54 in total). Turning the tub gives 5 × 2 = 10 per layer (60 in total), six tubs more from the same freezer just by rotating.
72 tubs × 4 L = 288 L of ice cream. The well is about 546 L gross, or about 497 L after subtracting the step, so only around 53% of the gross volume (58% of the space beside and above the step) holds product. Expect something similar with your own tubs; that is why litre ratings overstate tub capacity.
Selling freezers versus storage freezers
A glass-top display or scooping freezer is not filled like a storage chest. Customers need to see flavours and staff need to reach them, so plan one layer of facings plus the stock below it you will actually rotate. Keep a separate storage freezer for back-up stock so the display lid is not open while staff dig for a tub.
Keep stock below the load line and away from the lid gasket. Hold ice cream at −18 °C or colder, as common food-safety guidance for frozen food suggests, and follow the product maker's instruction if it asks for colder.
How many tubs do you need to hold?
Tubs on hand = tubs sold per day × days between deliveries + a buffer for delivery delays. A parlour selling 12 tubs a day with deliveries every four days and one day of buffer needs 60 tubs of storage, which the example freezer holds with room for a mix of flavours. Peak season in April to June can double daily sales, so size for that, or plan a second unit for summer.
Frequently asked questions
- Can I fill a chest freezer to the top?
- Fill to the load line, not the lid. Product above the line sits in the warmest air and suffers every time the lid opens. Packing too tightly against the walls can also block cold air paths in fan-assisted models.
- Do round tubs fit fewer than rectangular ones?
- Usually yes for the same volume, because round tubs leave gaps between them. Count them the same way using their diameter, and try a staggered arrangement, which can add a row in some freezer widths.
- Do baskets and dividers reduce how many tubs fit?
- Yes. Wire baskets hanging at the top take their own height and usually sit above the step or along one side. Dividers in a display freezer cost a few millimetres per lane. Measure inside the baskets and between dividers, and recount; it is common to lose a row or a layer.
- How do I count stick and cone cartons?
- Treat each outer carton as a box and count it the same way as tubs, by footprint and layers. For loose singles in a display freezer, count by lanes: lane width divided by product width, times how many fit front to back.
