Choosing the right refrigerated trailer is about more than just keeping food or stock cold. Weight limits, capacity, and how different models handle various loads all play a crucial role in safe and efficient transport or storage.
Businesses in catering, logistics, and event planning rely on fridge trailers and freezer trailers to maintain temperature-sensitive goods, but overloading or selecting the wrong model can lead to operational challenges.
Understanding trailer weight classifications, legal restrictions, and capacity considerations ensures you choose the right unit for your needs. From total weight limits and refrigeration unit power to floor strength and access points, each factor affects how well a refrigerated trailer performs.
This guide breaks down the key elements of refrigerated trailer weight and capacity, helping you make informed decisions when hiring or purchasing a unit.
Understanding Refrigerated Trailer Weight
Refrigerated trailers, also known as fridge trailers or freezer trailers, come in different sizes and weight classifications. The total weight of a trailer includes:
- Unladen weight – The trailer’s weight when empty
- Payload capacity – The maximum weight it can carry
- Gross weight – The combined weight of the trailer and its payload
For safety and legal reasons, trailers must not exceed their gross weight limit. Overloading can affect braking efficiency, fuel consumption, and the longevity of the refrigeration unit.
Capacity Considerations for Refrigerated Trailers
Capacity requirements vary depending on the type of goods you need to store or transport. A heavy-duty trailer designed for bulk stock will have different floor strength and insulation levels compared to a smaller unit intended for temporary food storage at events.
Key factors influencing capacity include:
- Internal dimensions – Larger trailers offer more usable space but require more power to maintain temperature.
- Refrigeration unit power – Some models can reach freezer temperatures, while others maintain a chilled environment.
- Access points – Rear doors or side doors affect loading and unloading efficiency.
Trailer Weight Limits and UK Regulations
The UK has strict regulations on trailer weights to ensure road safety. When towing a refrigerated trailer, the combined weight of the vehicle and trailer must comply with legal limits. This is especially important for those using trailers for sale or hire, as exceeding weight limits can result in fines or invalidated insurance.
For reference:
- A standard fridge trailer can have a maximum gross weight between 750kg and 3,500kg.
- Heavier-duty freezer trailers often require specialist towing vehicles.
- When placing a trailer on a site, ensure the ground can support its total weight, particularly if storing stock for extended periods.
Choosing the Right Refrigerated Trailer Model
Different models suit different needs, and the choice depends on the type of goods being transported, the duration of storage, and the available power supply.
- Short-term events – Smaller fridge trailers with easy-access doors work well for outdoor functions, catering, and temporary food storage.
- Long-haul transport – Heavy-duty trailers with reinforced floors and higher power refrigeration units ensure stock remains at the right temperature over long distances.
- Stationary storage – If the trailer is parked on-site for extended use, consider power efficiency and insulation quality.
How Floor Strength Affects Load Capacity
Many overlook the importance of floor strength when assessing trailer weight and capacity. A weak floor can buckle under heavy loads, reducing the trailer’s lifespan. Heavy-duty models often feature reinforced flooring to support larger volumes of stock without risk of damage. When hiring or purchasing a trailer, always check the manufacturer’s specifications regarding load-bearing capacity.
Freezer Trailers vs. Fridge Trailers: What’s the Difference?
A fridge trailer maintains temperatures between 0°C and 8°C, while a freezer trailer typically operates at -18°C or lower. The choice depends on whether you need to keep food chilled or frozen.
Factors to consider:
- Power supply – Freezer trailers often require a more robust power source due to higher energy demands.
- Stock rotation – Freezer trailers may need additional shelving for easy access.
- Site requirements – Ensure enough space for trailer doors to open fully, especially when using rear doors for bulk storage.
Requesting a Refrigerated Trailer: Key Considerations
When requesting a refrigerated trailer for hire, keep the following in mind:
- Capacity needs – Calculate the volume of goods you need to store.
- Weight restrictions – Ensure your towing vehicle can handle the trailer’s gross weight.
- Power availability – Check if the site has an adequate power supply for the refrigeration unit.
- Access and placement – Confirm that the trailer doors have enough clearance for loading and unloading.
Looking for Refrigerated Trailer Hire Across The UK?
Selecting a refrigerated trailer involves more than just size and temperature settings. Weight capacity, legal compliance, and site requirements all play a role in ensuring safe and efficient operation. Before making a decision, consider the total weight, refrigeration unit power, and door placement to ensure smooth logistics. Investing time in understanding these factors will help you find a reliable, high-performing refrigerated trailer suited to your specific needs.
At North Star Hire we’re dedicated to delivering reliable, safe and hassle-free refrigeration. With years of experience in the cold storage and transport industry, we know what it takes to keep your goods at the ideal temperature.
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FAQs
What is the maximum weight a refrigerated trailer can carry?
The maximum weight capacity of a refrigerated trailer depends on the model, axle configuration, and legal weight restrictions. In the UK, trailers must comply with gross vehicle weight (GVW) limits, typically ranging from 3.5 tonnes for smaller units to 44 tonnes for articulated lorries.
How much power does a refrigerated trailer need?
Refrigerated trailers require a consistent power supply to maintain temperature control. Most units operate on either a mains connection (230V) or a generator. The power requirement varies depending on the refrigeration unit size and the trailer’s insulation efficiency.
Can refrigerated trailers be used for frozen and chilled storage?
Yes, most refrigerated trailers are designed to accommodate both chilled and frozen goods. Temperature settings can be adjusted depending on the type of stock being stored, making them ideal for transporting perishable food items, pharmaceuticals, and other temperature-sensitive products.
