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Container Glossary

double-door container

Also called Tunnel container, Tunnel-tainer

Definition

A double-door container is a standard 20-ft or 40-ft steel container built with a second set of cargo doors on the far end instead of the usual solid wall, so it opens and loads from both ends. It's the same shell, steel gauge and door hardware as a standard container, just mirrored onto both ends. Containers Delivered doesn't keep one in the yard; it's a specialty configuration we source to order.

Also called
Tunnel container, tunnel-tainer
What changes
Both ends open instead of one
Available on
20-ft or 40-ft shell
Stocked by Containers Delivered
No, but sourced to order

The decision underneath the term

The question that actually matters isn't what a double-door container is called, it's whether you'll regularly need to reach the far end of the box without emptying it first. That's the deciding factor, and it comes down almost entirely to length and how the container gets used day to day.

A single door end works fine on plenty of containers and never comes up as a limitation at all.

Why length ends up deciding it

On a 20-ft box, one door end is rarely a real problem, the container is short enough that nothing packed inside is ever truly out of reach. Stretch that same layout to 40 feet and it's a different story. Load from the one end you've got, and whatever ends up sitting against the far wall means climbing over everything in front of it or walking the full length of the box to reach it. A second door on that far end turns that walk into a straight shot instead.

  • Short box, occasional access: a standard single-door end is usually fine
  • Long box, frequent access to both ends: a double-door solves a real problem
  • Loading straight through, rather than digging from one end: also a double-door job

What doesn't change on a double-door box

Nothing about the width, the height or the steel gauge is different from a standard container. The footprint stays roughly 160 square feet on a 20-ft and about 320 on a 40-ft, and the doors themselves are the same locking bar and gasket hardware you'd find on a standard box, just built onto both ends instead of one.

How to actually get one

Because we source this configuration rather than keep it on the lot, size and timing are the two things to talk through up front. If doors on both ends would genuinely solve a problem on your job, call and describe what you're loading and how often, and we'll tell you what that looks like rather than guess.

Yes. Tunnel container and tunnel-tainer are just other names for the same configuration, doors on both ends instead of one.
No. It's a specialty configuration we source to order on either a 20-ft or 40-ft shell.
Sourced to order

Tell us what you're loading and how often

We'll walk you through what it takes to source a double-door unit for the job.

or (276) 237-6144