Sizing & Equipment

Dual-Temp vs Single-Temp Reefer Trailers

When a multi-zone trailer is worth it — and when a single zone is plenty.

Updated June 2026 · ColdStorageFinder.com

A single-temp reefer holds one temperature throughout. A dual-temp (multi-zone) trailer uses a movable bulkhead to maintain two zones at once — for example frozen in front and refrigerated in back.

When you need dual-temp

  • You must store frozen and fresh product at the same time.
  • You want to avoid renting two separate units.

Dual-temp units cost more and reduce usable single-zone capacity. If everything you store sits in one temperature range, a single-temp unit is cheaper and simpler.

Frequently Asked Questions

What is a dual-temp reefer trailer?

A dual-temp trailer has a movable bulkhead that creates two temperature zones in one unit — e.g., a frozen section and a refrigerated section — so you can store mixed product without two trailers.

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