Shipping Container Dimensions: Every Size Spec Guide for Canadian Buyers

By Paul LeBlanc, owner, and Christian LeBlanc, second-generation operator, Van Blanc Ent. Inc.

Reading Time: about 17 minutes

Shipping container dimensions follow international standards that almost everyone gets slightly wrong on their first purchase. The numbers themselves are fixed by ISO. The buyer surprises come from interior versus exterior (always different), the door opening (smaller than the interior), and the size-to-use-case match (where most Ontario buyers either over-buy or under-buy). This guide is the canonical dimensions reference for every container size Van Blanc delivers across Ontario, with the Canadian buyer context built in.

Van Blanc has been delivering containers across Ontario since 1995. We stock all five common lengths and both heights at our Brantford yard, with over 200 containers in inventory at any given time. Customers walk the row, read the CSC plates, knock on the panels, and pick the exact unit before paying. This guide is the dimensions data you would walk through with us before that visit.

Five lengths, three heights, one width: the ISO standard

Every shipping container on a ship, train, or truck in the world is built to a small set of ISO standards: ISO 668 (Classification, dimensions and ratings), ISO 1496 (Specification and testing), and ISO 6346 (Coding, identification and marking). These standards fix the external envelope of every container at a defined set of values that have not meaningfully changed in 50 years.

The dimensions are organized along three axes:

• Five common lengths: 10ft (3.04m), 20ft (6.06m), 40ft (12.19m), 45ft (13.71m), and 53ft (16.15m). The 10ft, 20ft, and 40ft are global standards. The 45ft is mainly North American. The 53ft is exclusively North American intermodal.
• Three heights: Standard at 2.591m (8’6″), High Cube at 2.896m (9’6″), and Pallet Wide at 2.6m (a rare European variant). Standard and High Cube cover 99% of containers in the Ontario market.
• One width: 2.438m (8’0″) external. This is fixed for all standard ISO containers. There are 2.5m and 2.6m “wide” variants in European intermodal service but they do not appear in the Ontario buyer market.

This consistency is what makes containers stackable, swappable, and globally interchangeable. A 40ft container made in Shanghai stacks under a 40ft container made in Hamburg because their external corner castings are at identical positions. The same engineering also means buyers in Brantford get exactly the same internal dimensions as buyers in Montreal or Halifax for the same container type.

Every size at a glance: the master dimensions table

Here is every common shipping container size with external dimensions, internal dimensions, door opening, volume, and weight. Use this as the single reference for any sizing decision.

Quick observation from the table: the 53ft is the only container in the lineup that breaks the universal 8-foot (2.44m) width. North American intermodal regulations allow 53ft units to be 8’6″ (2.59m) wide, which adds about 7 percent of usable floor area over a 40ft. The 53ft is also the only container designed exclusively for North American road and rail intermodal service; it does not load on ocean-going ships.

10ft container: when the smallest size wins

The 10ft container is the smallest standard ISO container. External: 2.99m x 2.44m x 2.59m. Internal: 2.83m x 2.35m x 2.39m, giving 16.0 cubic metres of usable volume. Empty weight: 1,300 kg. Max gross: 11,500 kg. Floor area: 6.65 m².

The 10ft is overlooked by most Ontario buyers because it is harder to source (lower production runs globally), priced relatively high per cubic metre, and rarely advertised by national franchises. We stock it specifically for buyers who genuinely need the smaller size:

• Tight residential lots: a 10ft fits where a 20ft does not. Backyards, side-of-house storage, narrow rural driveways.
• Single-purpose secure storage: tools, ATV gear, off-season recreational equipment for buyers who do not need 33 m³.
• Construction trades on small job sites: enough for one trade’s tools and materials without the footprint of a 20ft.
• Event and pop-up applications: easy to relocate, easy to brand, fits inside event spaces a 20ft would not.

Cost in Ontario 2026: the 10ft carries a premium per cubic metre because of its low global production volume, so grade (As-Is up through One-Trip) and delivery distance drive the quote more than size does. See our full 10ft Shipping Container Canada guide for the size-specific deep dive.

20ft container: the most-delivered size in Ontario

The 20ft is the workhorse of the Ontario residential, light commercial, and farm market. External: 6.06m x 2.44m x 2.59m (Standard) or 2.90m (High Cube). Internal: 5.90m x 2.35m x 2.39m (Standard) giving 33.2 m³. Empty weight: 2,200-2,300 kg. Max gross: 24,000 kg.

If you are searching “20ft container dims” or the weight of a 20 ft shipping container, those are the numbers: a 20ft external footprint of 6.06m x 2.44m x 2.59m, 33.2 cubic metres of usable space, and a tare (empty) weight of roughly 2,200 kg.

Why the 20ft dominates the Ontario market:

• Fits typical residential driveways and rural sites without site work
• 33 m³ covers the typical household storage need with margin
• Delivery is the easiest of any size: tilt-deck + container weighs about 13,800 kg combined road weight
• Cost-to-volume sweet spot for general storage uses
• Easy to relocate later if your needs change

Cost in Ontario 2026: the 20ft sits at the best cost-to-volume ratio of any size, with grade (from As-Is up to One-Trip) and delivery distance from Brantford being the two factors that move the final number. Full detail in our 20ft container dimensions guide.

40ft container: the workhorse for serious volume

The 40ft container doubles the floor area and roughly doubles the volume of a 20ft for less than double the price. External: 12.19m x 2.44m x 2.59m (Standard) or 2.90m (High Cube). Internal: 12.03m x 2.35m x 2.39m (Standard) giving 67.7 m³ (Standard) or 76.3 m³ (High Cube). Empty weight: 3,750-4,100 kg. Max gross: 30,480 kg.

Buyers shorten the 40ft High Cube to “40 HC” or “40 HQ” (both mean the same 9’6″ high-cube build), and you will see it typed as 40hc / 40hq container dimensions or simply 40ft container dims on listings and quote requests. Whatever the shorthand, the numbers are the same: 12.19m long, 2.44m wide, and 2.90m tall externally, with 76.3 cubic metres inside.

The 40ft is the right size for:

• Serious farm storage (feed, hay, equipment)
• Industrial parts and tooling inventory
• Container conversions where length matters (restaurants, full workshops, two-vehicle garages)
• Any storage need over 25 cubic metres
• Buyers who plan to convert the container into permanent structure later

Cost in Ontario 2026: the 40ft roughly doubles the volume of a 20ft for far less than double the outlay, so grade (As-Is through One-Trip High Cube) and delivery distance are the main levers on the quote. Full detail in our 40ft container dimensions guide.

45ft High Cube: when you need more length

The 45ft is the long-length premium option. External: 13.71m x 2.44m x 2.90m. Internal: 13.56m x 2.35m x 2.70m, giving 86.0 m³ of usable volume. Empty weight: 4,800-5,000 kg. Max gross: 30,000 kg.

The 45ft is a less common size in the Ontario market. Why buyers choose it:

• One single container holds 27 percent more volume than a 40ft HC
• Single-unit large-cargo storage (large equipment, long timber, oversized items)
• Multi-section residential conversions that benefit from the extra length

Cost in Ontario 2026: the 45ft is a long-length premium size, so it carries a higher quote than a 40ft and the price is driven mainly by grade and delivery distance. The 45ft is generally only available in One-Trip and Cargo Worthy grades; WWT 45ft units are rare in the secondary market. See our 45ft High Cube product spec for current inventory.

53ft High Cube: North American intermodal max

The 53ft is the largest container in the Ontario market and is uniquely North American. External: 16.15m x 2.59m x 2.90m (notice the wider 2.59m width, not 2.44m). Internal: 16.0m x 2.50m x 2.70m, giving approximately 107 m³ of usable volume. Empty weight: 5,000-5,400 kg. Max gross: 30,480 kg.

The 53ft does not load on ocean-going ships. It was designed in the 1990s for North American intermodal rail and road transport between US and Canadian cities, sized to maximize legal trailer length. Buyers choose 53ft when:

• Maximum single-unit volume is the primary requirement
• Large agricultural operations need feed or grain storage at scale
• Industrial parts depots want fewer containers in the inventory rotation
• Conversions to large-format spaces (multi-room office, café with seating)

Cost in Ontario 2026: as the largest box in the Ontario lineup, the 53ft sits at the top of the size scale, and its quote is driven by grade and by delivery distance from Brantford. Detail in our 53ft High Cube container guide.

High Cube vs Standard: the 30 cm decision

Every container size except 53ft (which is always High Cube) comes in two heights:

• Standard: 2.591m external (8’6″) = 2.393m internal
• High Cube: 2.896m external (9’6″) = 2.698m internal

The 30 cm of additional headroom matters when:

1. Conversions to occupied space. A finished interior (spray foam + drywall) drops headroom by 8-10 cm. Standard at 2.39m drops to ~2.30m, tight for tall occupants. High Cube at 2.70m drops to ~2.60m, comfortable.
2. Tall stacked pallets. 1.3-1.5m pallets stacked 2-high need 2.6m+ of usable height. Standard forces single-layer; High Cube doubles capacity.
3. Refrigerated applications. Reefer units eat 15-20 cm of interior height. Reefer in Standard barely clears cargo; Reefer in High Cube preserves usable volume.
4. Vehicle garages with lifted trucks. Lifted F-150/Tundra trucks at 2.1m+ height need the High Cube clearance.

A High Cube carries a modest premium over the equivalent Standard, and how much depends on size. Worth it when any of the four scenarios apply. Skip it for pure dry storage of items under 1.5m tall per stack. Our High Cube vs Standard breakdown covers the decision in depth.

Refrigerated container dimensions

Refrigerated containers (reefers) have meaningfully smaller internal dimensions than dry containers because of the insulated walls and the refrigeration unit on the door end.

Reefers serve Ontario winery cold storage, dairy and produce buffer storage, pharma cold chain, and any food-service container requiring active refrigeration. Our refrigerated container guide covers power requirements, operating costs, and use cases. The dimensions table above shows why the choice of dry vs reefer affects usable cargo capacity meaningfully: a 40ft HC dry has 76.3 m³ of usable volume while a 40ft HC reefer has 66.3 m³, a 13 percent reduction from the insulation envelope.

Which size do you actually need? A decision tree

Most sizing mistakes happen when buyers default to “I’ll go big” without thinking about delivery, site footprint, or use case. Here is the honest decision tree.

How much furniture fits in a 20ft or 40ft container?

One of the most common Ontario-buyer questions: “I’m moving (or storing for a renovation), how much of my house fits in a container?” Here is the realistic answer based on a typical 3-bedroom Ontario household and verified by every move-out delivery we have run from Brantford.

The math behind the table: a typical 3-bedroom Ontario suburban home has 90-130 cubic metres of personal property volume (clothes, kitchen items, furniture, decor, electronics, books, seasonal storage). A 20ft container holds 33.2 m³ usable. A 40ft holds 67.7 m³. So a 20ft covers about 70 percent of a typical 3-bedroom, a 40ft covers most of it, and over-large homes need two 40ft units.

Practical furniture counts that fit a 40ft Standard container with average packing efficiency:

• 4-6 bedroom sets (queen mattress, box spring, frame, dresser, nightstands)
• 3 living room sets (sofa, loveseat, recliner, coffee table, end tables)
• 2 dining sets (table, 6-8 chairs, china cabinet)
• 2 kitchen sets (table, chairs, island, microwave cart)
• 30-50 standard moving boxes (medium 18x18x16) of kitchen items, books, decor
• Major appliances: refrigerator, washer, dryer, dishwasher, stove (if disconnected)
• Workshop or hobby gear: bikes, exercise equipment, off-season recreational equipment

For a 20ft Standard, the realistic count drops to about half of the above. Roughly: 2-3 bedroom sets, 1 living room set, 1 dining set, 20-30 moving boxes, plus one major appliance grouping.

What drives container cost by size and grade in Ontario

Container pricing in Ontario scales by size and by grade, and there is no single number because the same box quotes differently depending on a handful of factors. Rather than a price matrix that goes stale, here is what actually moves the quote up or down, ranked roughly by how much weight each factor carries.

Delivery from our Brantford yard is billed by distance, so most of Southern Ontario destinations stay in the lower delivery band while the more remote Northern Ontario routes carry the highest delivery charge. Our guide to moving a shipping container in Ontario covers the full tilt-deck delivery process. The container plus delivery is the all-in turnkey cost; no monthly fees, no contract, no renewal pricing. Our pricing has been COD on delivery since 1995, no upfront deposits required.

How big is a shipping container?

A shipping container is as big as the size you choose, and the size you choose answers the only question that matters: will it hold what you need and fit where you want it. The most common box on Ontario driveways is the 20ft Standard, which is roughly the footprint of a single-car garage bay laid flat: about 6 metres long, 2.44 metres wide, and 2.59 metres tall on the outside, with 33.2 cubic metres of space inside. Step up to a 40ft and you have twice the floor and close to twice the volume in one drop. The whole lineup runs from the compact 10ft up to the 53ft High Cube, the largest box that travels North American roads.

The simplest way to picture it: a 20ft container parked in your yard takes up about the same ground as a mid-size pickup truck with a bit of breathing room around it, and a 40ft is two of those nose to tail. That is the practical scale most buyers are really asking about when they search “how big is a shipping container.” For the exact internal volumes, door openings, and weights of every size, the master table earlier in this guide has the full breakdown. To work out how much of your specific load actually fits, our capacity guide walks through it cubic metre by cubic metre.

How tall and how wide is a shipping container?

A shipping container is 2.59 metres tall (8 feet 6 inches) in Standard height and 2.90 metres tall (9 feet 6 inches) in High Cube, the taller build that adds 30 centimetres of headroom. Width is the one dimension that almost never changes: every standard ISO container from 10ft through 45ft is 2.44 metres wide (8 feet) on the outside, no matter the length. That fixed width is exactly why a box loaded in one port slots onto a truck or rail well anywhere in the world. The lone exception is the 53ft High Cube, built to 2.59 metres wide because it runs North American intermodal routes only and never sees an ocean ship.

Put a Standard container next to a typical interior room and the ceiling height lines up almost perfectly, since most homes sit around 2.4 to 2.7 metres floor to ceiling. The High Cube clears a standing adult with plenty of room overhead, which is why it is the box of choice once a container becomes a workshop, office, or living space rather than plain storage. Height is the dimension you pick deliberately. Width is the dimension you can count on staying the same.

How long is a shipping container?

A shipping container is one of five standard lengths: 10ft (3.04 metres), 20ft (6.06 metres), 40ft (12.19 metres), 45ft (13.71 metres), or 53ft (16.15 metres). The 20ft and 40ft are by far the most requested at our Brantford yards, and length is almost always the deciding factor in which one a buyer drives home with. A 40ft is close to the length of a school bus, and a 53ft is longer than a transport trailer, which is why placement and the swing room a delivery truck needs grow right along with the length you order.

How tall are shipping containers? How big are containers?

Shipping containers are 2.59 metres tall (8’6″) in Standard height and 2.90 metres tall (9’6″) in High Cube, and that holds true whether you have one box or a whole row of them, so the plural answer to “how tall are shipping containers” is exactly the same as the single-unit number. How big are containers overall comes down to length: they run from the 10ft (3.04m) up to the 53ft High Cube (16.15m), all sharing the same fixed 2.44m external width. The most common sizes on Ontario sites are the 20ft and the 40ft, which is why most buyers asking “how big are containers” are really comparing those two.

Put plainly: a single 20ft container is about the footprint of a one-car garage bay, a 40ft is two of those end to end, and the height you pick (Standard or High Cube) changes the headroom, never the width. For the full external and internal dimensions, cubic capacity, and empty weight of every size side by side, the master table near the top of this guide lays them all out.

Frequently Asked Questions

Walk our Brantford yard before you buy

Container dimensions on a spec sheet tell you the math. Walking the yard tells you the truth. A 40ft High Cube looks bigger in person than the table makes it sound. A 10ft fits in a residential side yard where a 20ft cannot. The condition of corner castings, the smell of the floor, the way the doors swing, the residual paint colour from the last shipping line, all of these things you only learn by being there.

Van Blanc has been delivering containers across Ontario since 1995. Paul and Christian LeBlanc walk our 200+ container Brantford yard with customers every week. We pull up dimensions on every candidate unit and walk you through the size-to-use-case match before you commit. Delivery is 1-3 business days across Ontario from Brantford. Payment is COD on delivery, no exceptions.