Container Type Guide
Which shipping container type is right for you?
There's more to choosing a container than 20ft versus 40ft. The type — standard, high cube, refrigerated, open-top and more — decides what you can store, how you load it, and what you'll pay. This guide walks you through it, then connects you with verified suppliers near you.
The short version
Most buyers need a standard "dry" container in a 20ft or 40ft size. It's the cheapest, the easiest to find, and it handles storage, shipping and most conversions.
You only need a specialty type for a specific reason: cold or frozen goods point to a refrigerated unit, tall interiors to a high cube, top-loaded or oversized cargo to an open-top or flat rack, and easy loading to a double-door. Below, we match each one to what you're actually trying to do.
Not sure on budget yet? Try the cost estimator or jump straight to comparing free quotes.
Start here
Pick by what you'll use it for
The fastest way to narrow down. Choose the job closest to yours and jump to the right type.
The main types
Every common container, and who it's for
Each card covers what it is, what it's best for, and the trade-off people miss. Price tier runs from $ (most affordable) to $$$ (premium); availability is how easily verified suppliers tend to stock it.
Standard (dry) container
The default steel box: corrugated walls, cargo doors at one end, 8 ft 6 in tall. If nothing below describes a special need, this is the one.
- Sizes — 10, 20 & 40 ft
- Best for — storage, freight & most conversions
- Heads-up — doors at one end only; 10 ft is often cut down, so it can cost more per foot than a 20 ft
High cube container
Same length and width as a standard, but a full foot taller (9 ft 6 in). That extra headroom is the whole point.
- Sizes — mostly 40 & 45 ft (20 ft HC is rarer)
- Best for — conversions, tall pallets/equipment, room to insulate & add flooring
- Heads-up — needs more vertical clearance for delivery and won't fit under low structures
Refrigerated container (reefer)
Insulated walls plus a powered cooling unit that actively holds a set temperature — anywhere from deep-frozen to chilled.
- Sizes — 20 & 40 ft (40 is usually high cube)
- Best for — food, pharma, florals & cold storage
- Heads-up — needs continuous power; on used units, confirm the cooling unit actually runs cold
Open-top container
A removable tarpaulin or hard top instead of a fixed roof, so cargo can be craned in from above.
- Sizes — 20 & 40 ft
- Best for — cargo taller than the doors, machinery & top-loaded bulk
- Heads-up — the top isn't as secure or weatherproof as a solid roof; not ideal for long-term outdoor storage
Flat rack container
Just a strong base with two end walls — no roof, no sides. Built for loads a normal box can't hold.
- Sizes — 20 & 40 ft base
- Best for — oversized, heavy or wide loads: vehicles, machinery, pipes & boats
- Heads-up — no weather protection; it's a transport type, not a storage box
Double-door (tunnel) container
Cargo doors on both ends. Walk or drive straight through, or split the box into two lockable halves.
- Sizes — 10, 20 & 40 ft (often a modification)
- Best for — loading from either end, drive-through access & easy full-length reach
- Heads-up — two door ends means more seals to maintain and a little less solid wall for shelving
Don't see an exact match? Suppliers can also modify standard boxes — side doors, roll-up doors, extra vents, windows or partitions. Describe what you need on the quote form and we'll route it to suppliers who build it.
Less common, still useful
A few specialty configurations
You'll meet these less often, but they solve very specific problems.
Open-side container
Doors run the full length of one side, so the entire box opens at once instead of just one end.
Best for: workshops, pop-up retail, and loading pallets side-by-side.
Insulated container
Insulated walls but no powered unit. It buffers temperature swings rather than actively cooling — far cheaper to run than a reefer.
Best for: moderate climate control for dry goods, gear and workshops.
Tank container
A cylindrical tank held inside a standard container frame, for liquids, food-grade fluids, chemicals or gases.
Best for: bulk liquid transport and storage (heavily regulated).
Just as important as type
Then choose a condition grade
Two identical 20ft boxes can differ by hundreds of dollars purely on condition. Here's what the grades actually mean.
| Grade | What it means | Price | Best for |
|---|---|---|---|
| New / One-trip | Shipped only once from the factory. Near-pristine paint, clean interior, doors seal well. | $$$ Highest | Conversions, anything customer-facing, long-term ownership. |
| Cargo-worthy (CW) | Certified structurally sound and seaworthy. Used, with some dents and surface marks. | $$ Mid-high | Shipping goods or storage you want to rely on. |
| Wind & watertight | Keeps wind and water out but shows more cosmetic wear. May not be certified for shipping. | $ Mid | On-site storage where looks don't matter. |
| Used / As-is | Sold as seen — may have dents, surface rust or patched repairs. | $ Lowest | Budget storage — inspect it or ask for photos first. |
Swipe the table sideways on mobile to see every column.
Not every type comes in every grade — one-trip dry containers are everywhere, but one-trip reefers and flat racks are much rarer. Availability drives price too, which is why it pays to compare a few verified suppliers. See how we check them on the supplier score page.
Side by side
Every type at a glance
The whole line-up in one view — skim it to shortlist, then jump back up to the detail on your top pick.
| Container type | Typical sizes | Price tier | Power? | Best for | How easy to find |
|---|---|---|---|---|---|
| Standard (dry) | 10, 20, 40 ft | $ | No | Storage, freight, most conversions | Everywhere |
| High cube | 20, 40, 45 ft | $$ | No | Tall cargo, living & workshop builds | Common |
| Refrigerated (reefer) | 20, 40 ft | $$$ | Yes — continuous | Frozen & chilled goods, cold storage | Moderate |
| Insulated | 20, 40 ft | $$ | No (optional) | Buffering temperature swings, dry goods | Moderate |
| Open-top | 20, 40 ft | $$ | No | Tall loads craned in from above | Less common |
| Flat rack | 20, 40 ft | $$ | No | Vehicles, machinery, pipe & boats | Less common |
| Double-door (tunnel) | 20, 40 ft | $$ | No | Drive-through access, easy loading both ends | Moderate |
| Open-side | 20, 40 ft | $$ | No | Wide loads, full-length side access | Rarer |
| Tank | 20 ft frame | $$$ | Varies | Bulk liquids, chemicals & food-grade fluids | Specialist |
Swipe the table sideways on mobile to see every column.
Price tiers are relative, not fixed quotes — a used standard box and a one-trip high cube can overlap. For real numbers in your area, run the cost estimator or compare quotes from verified suppliers.
Avoid these
Common mistakes buyers make
Most container regrets come down to the same handful of oversights. Check yourself against these before you commit.
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Paying for a reefer when insulation would do
A refrigerated unit costs far more to buy and runs up power bills. If you only need to slow temperature swings — not actively hold a setpoint — an insulated container is the cheaper, right-sized answer.
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Forgetting delivery clearance for a high cube
That extra foot of height is easy to love and easy to overlook. A tilt-bed truck needs vertical and overhead room to place a high cube — measure gates, eaves, and low branches first.
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Buying “as-is” sight unseen
As-is is the cheapest grade for a reason. Without photos or an inspection you can inherit dents, pin-holes or a floor that needs replacing. Always ask for current pictures — or step up to cargo-worthy or wind & watertight.
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Picking the wrong door configuration
Standard boxes open at one end only. If you need to load from both ends or drive through, that's a double-door or open-side unit — and it's far cheaper to order it that way than to retrofit later.
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Not checking a used reefer's cooling unit
A used refrigerated container can look perfect and still have a tired compressor. Ask for the unit's service history and a pull-down test to a target temperature before you buy.
Once you've picked a type
Price it, then check who you're buying from
Knowing the right type is half the decision. The other half is what it costs near you and whether the seller is dependable. Two free tools finish the job:
- Get a ballpark on any size and condition with the cost estimator.
- Compare sellers on reputation and verified details — see how we score suppliers.
- Line up real numbers side by side when you compare quotes.
FAQs
Choosing a container type, answered
The standard (dry) container is by far the most common. It's a general-purpose steel box with corrugated walls and cargo doors at one end, sold in 10, 20 and 40ft lengths. It's the most affordable and easiest type to source, and it covers most storage, shipping and conversion projects.
A high cube has the same length and width as a standard container but stands one foot taller — 9ft 6in versus 8ft 6in. That extra headroom matters for tall cargo, workshop or living conversions, and for adding insulation or a raised floor. High cubes need more vertical clearance to deliver and cost a little more.
Choose a refrigerated container (reefer) only if you need to actively hold a set temperature for frozen or chilled goods — it has a powered cooling unit and needs continuous power. If you just need to buffer temperature swings without active cooling, an insulated container costs less to buy and nothing to run.
New or one-trip containers have shipped only once and are near-pristine but cost the most. Cargo-worthy units are certified structurally sound for shipping with some cosmetic wear. Wind & watertight units keep out weather and suit storage but may not be shipping-certified. As-is or used units are cheapest and may have dents or surface rust, so inspect them before buying.
For loads too tall, wide or heavy for a standard box, an open-top container (loaded from above by crane) or a flat rack (open sides, and on many models collapsible ends) is usually the answer. Flat racks are common for vehicles, machinery, pipe and boats. Neither gives full weather protection, so they're mainly for transport rather than long-term storage.
Not always. Standard dry containers come in nearly every size and condition, but specialty types like reefers, open-tops and flat racks are made in fewer sizes and are harder to find in one-trip condition. Local availability varies, which is why comparing quotes from several verified suppliers is the fastest way to see what you can actually get near you.
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