A practical guide to buying a 20ft refrigerated container, covering new vs. used trade-offs, power and site needs, inspection checklists, and questions to ask before you buy.
A 20ft refrigerated container—often called a reefer—is a temperature-controlled shipping container used for cold storage, food transport, and climate-sensitive projects. Unlike a standard dry container, a reefer includes insulation, a refrigeration unit, and internal airflow components that work together to hold a set temperature range. This guide helps you compare new and used options, plan power and placement, inspect a unit before purchase, and avoid common red flags. Exact specifications, availability, and pricing vary by listing, so always confirm details with the Newport team and the individual unit's documentation.
New vs. Used 20ft Refrigerated Containers
The first decision is whether to buy new or used. Both can be good choices, but they serve different priorities.
New Refrigerated Containers
New units typically offer the latest refrigeration technology, clean interiors, and no prior cargo history. Buyers who need predictable performance, a clean food-grade interior, or a long service horizon often start here. Because new units are built to current production standards, you may also find it easier to source parts and service information.
Trade-offs to consider:
- Higher upfront cost than used units.
- Availability may be limited by production schedules.
- You still need to confirm the exact unit's temperature range, power requirements, and controller type.
Used Refrigerated Containers
Used reefers can deliver strong value when they have been maintained and inspected. Many buyers choose used for seasonal storage, temporary projects, or budget-sensitive builds. The key is condition, not age alone.
What to check:
- Refrigeration unit hours and service history, if available.
- Interior wall, floor, and ceiling condition.
- Door seals and gaskets.
- Evidence of rust, impact damage, or repairs.
- Whether the controller and sensors function correctly.
Neither new nor used is automatically better. The right choice depends on your temperature requirements, how long you need the unit, and how much maintenance you can absorb.
Key Specifications to Confirm Before You Buy
A 20ft reefer is nominally about 20 feet long and 8 feet wide, with standard-height and high-cube height options. Those are nominal dimensions only. Exact internal and external measurements, weight, and capacity vary by manufacturer and model. Always verify against the individual listing and the unit's data plate or CSC plate.
Refrigeration Unit and Temperature Range
The refrigeration unit is the heart of the container. Ask:
- What temperature range can this specific unit hold?
- Is it designed for chilled, frozen, or both?
- What controller and sensors does it use?
- Are replacement parts and service available in your area?
Do not assume all reefers perform the same. A unit that holds chilled temperatures well may not be suited to deep frozen storage, and vice versa.
Power Requirements
Reefers need a power source to run. Requirements vary by unit, voltage, phase, and whether the unit is running in a continuous or cycling mode. Before purchase, confirm:
- The voltage and phase the unit requires.
- Whether your site can supply that power safely.
- Whether you need an electrician to install a suitable connection.
- How the unit behaves during a power interruption.
If you are unsure, ask the Newport team for the unit's electrical information and consult a licensed electrician. Do not guess at power needs.
Interior Condition and Airflow
Reefers rely on airflow around the cargo. Blocked or damaged airflow components can cause uneven temperatures. Inspect the T-floor or floor channels, the evaporator area, and the interior panels. A clean, intact interior is easier to trust than one with patched walls or a strong odor.
Site Planning, Placement, and Delivery
Where the container goes matters as much as which container you buy. Planning ahead reduces the chance of costly changes.
Access and Placement
Consider:
- How the delivery truck will reach the site.
- Whether the ground is level and stable enough to support the container.
- Clearance needed to open doors and service the refrigeration unit.
- Distance from the power source.
- Drainage so water does not pool around the unit.
Delivery requirements vary by location and unit. Confirm site access and delivery details with the Newport team before scheduling. Do not assume a particular truck, crane, or forklift will be included unless it is confirmed in writing.
Power and Monitoring
If the container will run continuously, plan for a dedicated power connection and consider how you will monitor temperature. Some buyers use alarms or remote monitoring, but availability and compatibility depend on the unit. Ask what monitoring options the specific reefer supports.
Permits and Local Rules
Rules about placing a container on a property vary by jurisdiction. Some locations may require permits or have zoning restrictions. Check with your local authority before you buy or place a unit. Do not rely on general advice about whether a permit is needed—requirements are local and fact-specific.
Inspection Checklist and Buyer Red Flags
A careful inspection protects your investment. Use this checklist as a starting point, and bring a qualified refrigeration technician if you are not comfortable evaluating the unit yourself.
Exterior and Structure
- Look for dents, cracks, or repairs in the frame and panels.
- Check the doors for smooth operation and proper alignment.
- Inspect the CSC plate and data plate for identification information.
- Look for rust that has compromised the structure, not just surface rust.
Refrigeration Unit
- Listen for unusual noises during operation.
- Check for oil stains, refrigerant leaks, or damaged lines.
- Confirm the controller powers on and displays readings.
- Ask about recent service and any replaced components.
Interior
- Check walls, ceiling, and floor for damage or moisture.
- Look for odors that may indicate prior cargo or mold.
- Confirm airflow channels are clear and intact.
- Verify door seals close tightly.
Red Flags
- A seller who cannot provide basic unit information.
- Signs of major repairs with no explanation.
- A refrigeration unit that will not run during inspection.
- Inconsistent or missing documentation.
- Pressure to buy without an inspection.
If something feels uncertain, slow down. It is reasonable to ask for more information or to have a technician evaluate the unit.
Frequently Asked Questions
Can I run a 20ft reefer on a standard household outlet?
Not necessarily. Power requirements vary by unit, voltage, and phase. Some reefers need a dedicated circuit or a different power configuration than a typical household outlet provides. Confirm the unit's electrical requirements and have a licensed electrician assess your site before you buy.
How do I know if a used reefer will hold temperature?
The most reliable approach is to have a qualified refrigeration technician inspect and test the unit. Ask for service records if available, and confirm the temperature range the unit is designed to hold. A unit that runs during inspection is a good start, but it is not a guarantee of long-term performance.
What size generator do I need for a refrigerated container?
Generator sizing depends on the specific unit's power draw, starting requirements, and how you plan to operate it. There is no single answer that fits every reefer. Consult the unit's electrical information and a qualified electrician or generator specialist to size equipment correctly.
Do I need a permit to place a reefer on my property?
Permit and zoning rules vary by location and are often specific to how the container will be used. Check with your local planning or building authority before placing a unit. Do not assume a permit is or is not required based on general guidance.
What should I confirm before delivery?
Confirm site access, ground conditions, placement location, power availability, and any delivery requirements with the Newport team. Ask what equipment will be used and whether any site preparation is needed. Getting these details in writing helps avoid surprises on delivery day.
Next Steps
Start by reviewing available units and their individual listings, then confirm the specifications, power needs, and delivery details that matter for your site. If you have questions about a specific 20ft refrigerated container, reach out and we will help you evaluate your options.
- Browse current inventory: Shop containers
- Ask about a specific unit or delivery: Contact Newport
Plan the next step
Confirm the container and the delivery plan.
Browse current listings, then speak with the Newport team to verify the unit, total pricing, site access, and delivery requirements before payment.