Choosing between a fridge trailer and a refrigerated container really means choosing between two strengths that do not stack: mobility and cold mass. A trailer unhitches from a car and plugs into a garage socket; a container takes 28 m³ of stock and holds its set point for weeks without drifting. Neither is simply the better option — they answer different jobs. The honest split turns on three things: how long you need the cold, how much you have to keep cold, and whether the site has the power to run a container at all. Here is the picture criterion by criterion, ex VAT, with nothing resting on the scale.
Head to head
The container brackets below are indicative UK figures observed in 2026, quoted ex VAT (add 20%); they shift with region, season and supplier. Fridge trailer hire varies too much between operators to bracket honestly, so that side is kept qualitative.
| Criterion | Fridge trailer | Refrigerated container |
|---|---|---|
| Capacity | A few m³, roughly 1 to 2 Euro pallets | 10ft ~15 m³ (4-5 pallets), 20ft ~28 m³ (10-11 pallets), 40ft HC ~67 m³ (23 pallets) |
| Power | 230 V single-phase, 13 or 16 A — any domestic socket | Three-phase 380/400 V, 32 A CEE five-pin plug, 5 to 12 kW (small formats sometimes 230 V) |
| Mobility | Towed behind a light vehicle, moves on its own | Delivered by crane lorry (HIAB), fixed once sited |
| Licence | Category B for most, B+E for the heaviest outfits | None — it does not move |
| Temperature | Mainly chilled, limited freezing on some models | -25 °C to +25 °C standard; -60/-70 °C super-freezer (rare) |
| Hire basis | By the day or weekend | From ~£12/day long term ex VAT (90-day minimum common); power and delivery extra |
| Best duration | 1 to 5 days | A week to several years |
| Security | Towable, so drivable off; light panels | Steel body, container locks, can be anchored |
What the fridge trailer does better
Mobility comes first. A fridge trailer hitches behind a light vehicle and arrives where you want it, when you want it — no delivery slot, no crane lorry, no wondering whether a 12-metre container carrier can reach the ground. A farm track, a courtyard, a field: the question is settled before it starts.
Power comes second, and often decides the whole thing. A trailer is happy on a domestic 230 V single-phase supply, on 13 or 16 A — a village hall, a garage or a campsite board all cope. A container wants three-phase and a 32 A CEE plug, or a generator, with the fuel and noise that involves. On an unserviced site that single point can end the debate.
The very short term comes last. For two or three days the trailer sidesteps the container’s fixed costs; delivery alone, by crane lorry, can sink the sums on a weekend job. A wedding, a shoot, a company buffet — this is what a trailer is for.
What the refrigerated container does better
Volume, no contest. A trailer tops out at one or two pallets. A 20ft takes 10 to 11 in about 28 m³, interior roughly 5.44 x 2.29 x 2.27 m and up to about 27 tonnes of payload; a 40ft high cube takes 23 pallets in about 67 m³, with 2.55 m of interior height. Once you are planning trailer round-trips to hold the load, you have passed the point where the container costs less.
Temperature stability. A container’s refrigeration unit — Carrier, Thermo King, Daikin and Star Cool are the familiar names — works across a wide band, -25 °C to +25 °C as standard and down to -60/-70 °C in a rare, pricier super-freezer. The insulation is built for weeks at sea, so it rides out a hot spell rather than drifting with it; a lighter trailer feels the swings more.
Cost over equal time. Long-term container hire starts at around £12 a day ex VAT and is degressive: the longer you commit, the lower the daily rate, and per cubic metre it soon undercuts the trailer. Electricity is the line nobody prints — reckon on 70 to 170 kWh a day depending on size and set point, at your contracted unit rate. Short-term hire exists at some suppliers, though a 90-day minimum is common. If the need is permanent, buying takes over past roughly 18 to 24 months of continuous use: a used unit runs £4,500 to £7,500 ex VAT, a new one-trip £18,995 to £22,500, graded A, B or C, with a recent PTI (Pre-Trip Inspection) worth asking for and 10 to 15 years of service life in a sound one.
Security. A trailer hitches up, so it can be driven off. A steel container of several tonnes, locked and sited, does not vanish overnight. For valuable stock left unattended, the gap is real.
Isotherm and ATP: two quick traps
Two things trip people up. An isotherm or non-operational container is an insulated box, not a fridge — it holds no set point of its own, so never treat it as a reefer for goods that must stay on temperature. And ATP certification concerns refrigerated transport, not a unit standing still on your yard; a statically sited container is generally outside its scope, though any sanitary or planning rules for your storage are worth checking with the relevant authority.
Which profile picks what
To be plain about one thing: we do not hire out fridge trailers. EuroReefer is an editorial comparison site specialised in refrigerated containers, with no stock or fleet. If your job genuinely calls for a trailer, the honest answer is to say so and point you to a local van-hire or event-hire firm.
- Weekend party, under three days, only a domestic socket → fridge trailer; a container would be oversized and its delivery out of proportion.
- A site a crane lorry cannot reach, or cold that must move between venues → fridge trailer, without hesitation.
- Festival, market or shoot: a week, real volume, three-phase on site → refrigerated container on short-term hire.
- A cold-room breakdown, overflow stock or a multi-month season → refrigerated container on hire, cheaper per day the longer you commit.
- A permanent need past a two-year horizon → buy a used unit, class A or B with a recent PTI; our for-sale pages walk through grades and checks.
If you land in the container column, putting suppliers side by side pays off: at equal size and grade the gap between offers stays wide, and our price page breaks the whole bundle down. Browse the other comparisons for size, temperature and condition, and when your need is clear, request your quotes — we pass your request to specialist suppliers, who contact you directly if they can meet your requirement.
Frequently asked questions
When is a fridge trailer the better choice than a refrigerated container?
For a short, mobile, low-volume job the trailer usually wins. It hitches behind a light vehicle, reaches a farm track or courtyard a crane lorry could not, and runs off an ordinary 230 V socket on 13 or 16 A. A weekend wedding, a shoot or a small buffet is exactly its territory. Above roughly a week, or a couple of pallets, the container starts to make more sense.
What power supply does each one need?
This is often the deciding line. A fridge trailer runs on single-phase 230 V through a 13 or 16 A socket, so any house, hall or campsite board will do. A 20ft refrigerated container generally wants three-phase 380/400 V through a five-pin 32 A CEE plug, drawing 5 to 12 kW; small formats are sometimes 230 V. With no three-phase on site, budget for a suitably sized generator, fuel and noise included.
How much can each one hold?
A hire fridge trailer offers a few cubic metres, on the order of one to two Euro pallets. A refrigerated container goes much further: a 10ft holds about 15 m³ (4 to 5 pallets), a 20ft about 28 m³ (10 to 11 pallets, interior roughly 5.44 x 2.29 x 2.27 m) and a 40ft high cube about 67 m³ (23 pallets). Once you would be running trailer round-trips, the container has already won on volume.
Which works out cheaper over time?
It turns entirely on duration. Over a weekend the trailer is hard to beat, with no crane delivery and no special power. Over a week or more, container hire from around £12 a day ex VAT long term falls the longer you commit, so per cubic metre it becomes the cheaper choice. Add delivery, collection and electricity, reckoned at 70 to 170 kWh a day, on top of the hire rate.