Quick Answer: A 40 foot shipping container offers roughly double the volume of a 20 foot at only 30 to 50 percent more cost, which makes it about 28 percent cheaper per cubic metre of storage. A 20 foot wins on capital cost, mobility, tight-site access, and dense-cargo payload. The right answer depends on what you load. Both are built to the same ISO 668 Series 1 freight container standard. Van Blanc is a family-run Ontario shipping container supplier since 1995, rated 4.9 stars across 124+ Google reviews, with 1-3 day delivery.
In This Guide
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The 20 foot versus 40 foot decision is the most common one in the container market. It is also the one that most buyers get wrong in both directions. Some buyers default to 40 foot because it looks cheaper per cubic metre on paper and end up with half a container of dead space. Others default to 20 foot because the upfront price is lower and end up needing a second one within the year. The honest answer depends on three things: how much volume you actually need, how heavy your cargo is, and whether you have room and access for the longer bin.
This article walks through the real numbers and the use cases where each size wins. Both sizes are built to the same ISO 6346 specification, both come in standard and high-cube heights, and both are honestly priced in the Canadian market in 2026. A figure that lands far under the going rate is usually the warning sign of a deposit that never ships a box, whichever size is quoted. The differences between the two sizes are mechanical, mathematical, and practical, not about quality.
How Big Is a 20ft vs 40ft Shipping Container?
A 20ft shipping container is 20 feet long, 8 feet wide, and 8 feet 6 inches tall, giving about 160 square feet of floor and 33.2 cubic metres of volume. A 40ft container doubles the length to 40 feet at the same width and height, for about 320 square feet and 67.7 cubic metres. Only the length changes.
Paul LeBlanc, owner: “First thing I ask anyone weighing a 20 against a 40 is what is going inside it. The tape measure on the box is the easy part. The two numbers that actually decide it are how much you are storing and how heavy it is. I have been buying and selling these since 1995, and the spec sheet almost never settles it on its own.”
| Specification | 20 ft Standard | 40 ft Standard |
|---|---|---|
| Exterior length | 20 ft (6.06 m) | 40 ft (12.19 m) |
| Exterior width | 8 ft (2.44 m) | 8 ft (2.44 m) |
| Exterior height | 8 ft 6 in (2.59 m) | 8 ft 6 in (2.59 m) |
| Interior length | ~19 ft 4 in (5.90 m) | ~39 ft 5 in (12.03 m) |
| Interior floor area | ~160 sq ft (14.8 m²) | ~320 sq ft (29.7 m²) |
| Interior volume | 33.2 m³ (1,172 cu ft) | 67.7 m³ (2,390 cu ft) |
| Tare weight (empty) | ~2,300 kg (5,070 lb) | ~3,800 kg (8,380 lb) |
| Max gross weight | 30,480 kg (67,200 lb) | 30,480 kg (67,200 lb) |
| Useful payload | ~28,180 kg (62,130 lb) | ~26,680 kg (58,820 lb) |
| Pallet capacity (48×40 std) | 10 pallets | 22 pallets |
The 40 foot offers slightly more than double the floor area and slightly more than double the cubic volume. The width and height are identical. Both share the same maximum gross weight limit, which is the part most buyers miss when they assume bigger always means more capacity in every dimension. It does not. It means more volume.
Is a 40ft Container Cheaper Per Cubic Metre Than a 20ft?
Cost-per-cubic-metre is the number that drives most “go big” advice, and on the raw math a 40ft container is cheaper per cubic metre than a 20ft, often by about a third. That is also cost-per-cubic-foot if you prefer imperial. Here is the actual relationship, indexed to the 20 foot standard, using midpoint Ontario delivered figures for used cargo-worthy containers in 2026. The point is the ratio, not the dollar figure, and the ratio holds whatever the steel market does to the headline number.
| Container | Relative delivered cost (20 ft = 100) | Interior volume | Cost per cubic metre (indexed, 20 ft = 100) |
|---|---|---|---|
| 20 ft standard, used CW | 100 (baseline) | 33.2 m³ | 100 (baseline) |
| 40 ft standard, used CW | ~140 (40 to 50 percent more) | 67.7 m³ | ~69 (about 31 percent cheaper) |
| 40 ft high cube, used CW | ~145 | 76.3 m³ | ~63 (about 37 percent cheaper) |
The Per-Cubic-Metre Story
On the raw math, a 40 foot high cube delivers cubic capacity at roughly two thirds the per-cubic-metre cost of a 20 foot standard. That is about a 33 percent better deal per unit of volume. If you are buying purely as a volume problem and you have the room and the cargo to actually fill it, the 40 foot HC is the most efficient container in the Canadian market. The same ratio holds if you step up to a a single-voyage unit fresh off the boat for a visible or converted build.
This math is correct, and it is also why the 40 foot is the default recommendation on most container blogs. But the math only applies when you actually use the volume. A 40 footer with one third of its floor empty costs more per useful cubic metre than a fully loaded 20 footer. The smart buyer asks “what am I actually putting in this box” before they let the per-cubic-metre number make the call.
Which Holds More Weight, a 20ft or 40ft Container?
A 20ft shipping container holds more useful weight than a 40ft, roughly 1,500 kg more, which is the part the cost-per-cubic-metre headline glosses over. Both the 20 foot and the 40 foot have the same maximum gross weight rating of 30,480 kilograms (67,200 lb). That is a road and rail limit, not a structural one. The 20 footer empties at about 2,300 kg, the 40 footer at about 3,800 kg. That means the 20 foot has roughly 1,500 kg (3,300 lb) more useful payload before you hit the same gross weight cap.
When Payload Beats Volume
For dense, heavy cargo (steel coils, metal stock, machinery parts, ammunition crates, dense bulk powders, contractor tooling, automotive parts), you will hit the weight cap long before you fill the volume. In that case, the 20 footer is the right call, sometimes the only legal call. A 20 footer fully loaded with steel coils can carry the same legal payload as a 40 footer that is also fully loaded with the same cargo, but the 40 will be wasting volume the whole way.
This is why most international freight of dense industrial cargo ships in 20 footers and most consumer-goods cargo ships in 40 footers. It is not a matter of supply chain preference. It is a function of cargo density and the immovable 67,200 lb gross-weight ceiling.
Christian LeBlanc, second-generation operator: “We get calls from farmers who think they want a 40 foot because the per-cubic-metre price looks better, until we ask what they are storing. If it is hay bales, fine. If it is heavy ag equipment, tractor parts, fertiliser pallets, the 20 foot fits more weight before they hit the load limit. Worth the conversation before they sign for the bigger bin.”
When Should You Choose a 40ft Shipping Container?
A 40ft shipping container wins when volume runs out before weight does, when the cargo is long, when a conversion needs multiple rooms, or when one big delivery beats two small ones. Five use cases where the 40 foot is the right call:
1. Bulk Lightweight Cargo
Empty crates, packaging materials, textiles, foam products, plastic stock, insulation, drywall, lightweight finished goods, retail inventory, or any cargo where volume runs out before weight does. This is where the per-cubic-metre math actually pays off. You are filling the 67.7 m³ before you hit anything close to the 26,680 kg payload limit.
2. Vehicle or Equipment Storage
A 40 foot interior length of about 39 feet 5 inches fits two cars end-to-end with room for spare parts and tools. A typical sedan is about 15 feet long. A pickup is 18 to 22 feet. A 20 foot interior length of 19 feet 4 inches fits one of those with little room to spare. For collector vehicles, motorcycles on a rack, snowmobiles, or two-vehicle storage on a working farm, the 40 foot is the right choice.
3. Long Equipment
Conveyors, scaffolding, structural steel, lumber, pipe stock, ladders, trade-show display panels, or any cargo where length is the constraint. Trying to fit a 25 foot conveyor section into a 19 foot 4 inch interior is a problem the 40 foot solves cleanly.
4. Container Conversion with Multiple Rooms
For converting to a container office with both a meeting space and a workshop, or a backyard cabin with both a sleeping area and a kitchenette, you need the linear footage. A 40 footer gives you two functional rooms with room left for utility. A 20 footer is one room. If a build is the plan, our yard team can cut doors, windows, and partitions into the box before it leaves Brantford.
5. Single Delivery of Maximum Volume
One 40 foot trip to your site versus two 20 foot trips. If your site can accept the longer trailer and the longer container, one delivery fee replaces two. The freight savings compound the per-cubic-metre savings.
When Should You Choose a 20ft Shipping Container?
A 20ft shipping container wins when the cargo is dense and heavy, when the site is tight, when capital matters, when the box needs to move, or when the footprint has to stay small. Five use cases where the 20 foot is the right call:
1. Dense Heavy Cargo
Already covered above. If you hit the weight cap before the volume cap, you are wasting money on a 40 footer. The 20 carries 1,500 kg more useful payload.
2. Tight Sites and Access Constraints
Some Ontario residential, cottage, and industrial sites cannot physically accept a 40 foot trailer and a 40 foot container. Narrow driveways, sharp turns at the end of long laneways, tree-lined access roads, hills, soft ground, and limited swing room for a tilt-deck all make the 20 foot the only practical option. Site survey before ordering, every time.
3. Capital Efficiency
A 20 foot used cargo-worthy lands delivered in Ontario for meaningfully less upfront than a 40 foot used CW. The difference is real cash that some buyers can put toward other inventory, equipment, or working capital. If you only need 20 foot worth of storage today, buying a 40 foot to “have the room for later” ties up cash in space you are not using, and weighing a short-term rental against an outright purchase can free that money up. Half-full containers cost more per useful cubic metre than full ones do.
4. Mobility
If the container will move with you or between job sites, the 20 foot is the practical answer. Trades crews working across the busy GTA jobsite circuit pick 20 footers almost exclusively. They are easier to truck, easier to place, easier to remove from a finished site.
5. Smaller Footprint Constraints
Some properties have a clear space for a 20 footer (160 sq ft) but no room for a 40 footer (320 sq ft) without rearranging the yard. The smaller footprint takes up less of a back yard, less of a driveway, less of a parking lot. For residential renovation storage, garden shed alternatives, or small business overflow, the 20 is often the only option that fits.
Are Two 20ft Containers Better Than One 40ft?
Two 20ft containers give you the same total volume as one 40ft but cost more upfront, so the trade is flexibility for capital. The two-versus-one math is worth considering for buyers whose storage needs are likely to grow or shift over time.
Buying one 40 foot today means one purchase, one delivery, one big space. If your needs shrink or change, you have a single 40 foot container to sell or repurpose, and the buyer pool for 40 footers is slightly smaller than the buyer pool for 20 footers.
Buying two 20 footers (the first today, the second when you actually need it) spreads the spend out, with the second purchase landing 12 to 24 months later when storage demand catches up. Total cost is higher than a single 40 foot. What you get for the extra is twice as many door openings (a separate 20 foot worth of cargo can be accessed from either container without moving the other), the option to place the two containers at different sites or different parts of one site, and a much larger resale market when you eventually sell.
| Factor | One 40 ft | Two 20 ft |
|---|---|---|
| Total volume | 67.7 m³ | 66.4 m³ (effectively the same) |
| Total floor area | 320 sq ft | 320 sq ft |
| Total cost, delivered, used CW | Lower overall | Higher overall (a modest premium for two bins) |
| Door access points | 1 set of cargo doors | 2 sets of cargo doors |
| Resale flexibility | Single buyer for a 40 ft | Two buyers, two sale windows |
| Site placement flexibility | One footprint required | Two footprints, can split between sites |
| Capital exposure today | Full amount all at once | Roughly half now, the rest later |
When Two 20s Actually Make Sense
Two 20 footers cost more than one 40 footer in upfront capital. The extra money buys flexibility. For buyers whose storage demand is likely to grow over 12 to 24 months, whose two storage zones are at different ends of a property or at different sites altogether, or who want the option to sell one and keep one later, the math is often worth it. For a buyer whose use case is settled and centralised, the single 40 foot is cleaner.
Does a 40ft Container Cost More to Deliver Than a 20ft?
A 40ft container does not cost meaningfully more to deliver than a 20ft within the same zone, because the trailer travels the same distance either way. Delivery freight from our Brantford yards is quoted per zone, with the same tilt-deck or flatbed trailers used for both 20 foot and 40 foot containers. The 40 foot trailer is longer, which can affect routing on tighter sites, but does not significantly change the per-trip cost.
| Delivery zone from Brantford | Typical 20 ft delivery | Typical 40 ft delivery |
|---|---|---|
| Brantford / Brant County local | Lowest | Lowest (same trailer dispatch) |
| Hamilton / KW / Cambridge | Mid range | Mid range |
| Toronto, GTA | Higher | Higher (longer trailer, urban routing) |
| Niagara, Norfolk, Haldimand | Mid range | Mid range |
| Eastern Ontario (Kingston, Brockville) | Higher | Higher |
| Northern Ontario (Sudbury, North Bay) | Premium freight | Premium freight |
For a same-zone delivery, the cost difference between trucking a 20 foot and a 40 foot is small. The bigger savings on a 40 footer is collapsing two trips into one (if you would otherwise have ordered two 20 footers). For a one-bin order, the trailer goes the same distance.
The Site Survey Lesson
The single most common 20-vs-40 mistake we see in 30 years is buyers who ordered a 40 footer because the per-cubic-metre math looked great, then could not get the trailer down their laneway on delivery day. A 53 foot tractor-trailer rig hauling a 40 foot container needs more space to manoeuvre than most people picture in their head from a satellite photo. Mature trees, soft shoulders, mailboxes, and overhead lines are all real constraints. We send a driver to look at any site we are unsure about before a 40 foot order is confirmed. Two minutes of phone-call site survey saves a re-quote.
Worth the Drive to Walk Both Sizes
The 20 foot versus 40 foot decision is one of the few in the container world where standing inside both bins changes the answer in about three minutes. The 20 foot feels small. The 40 foot feels big. The honest number sits between those two feelings, and the only way to find it for your specific use is to walk both. Our Brantford yard has standard and high cube examples of both sizes parked next to each other. Worth the drive for unbeatable quality, family customer service with 30 years of experience.
Frequently Asked Questions
How much more does a 40 ft shipping container cost than a 20 ft in Canada?
In Ontario in 2026, a used cargo-worthy 40 foot carries a moderate premium over a used cargo-worthy 20 foot. At midpoint, the 40 foot works out to about 30 to 50 percent more cost for roughly 100 percent more volume, which is why it looks cheaper per cubic metre. The exact figure moves with grade, delivery distance, and the steel market, so the percentage relationship is the reliable part.
Is a 40 ft container always cheaper per cubic foot than a 20 ft?
Yes, on the raw math, but only if you actually use the volume. A 40 footer delivers cheaper storage per unit of volume than a 20 footer, roughly a third less per cubic metre once you index the two. If you only fill half of the 40 footer, your effective per-cubic-metre cost climbs higher than a full 20 footer. Volume efficiency only counts when the volume is used.
Can a 40 ft shipping container fit on a regular residential property?
Most can, but site access is the constraint. A 40 foot trailer needs roughly 70 to 80 feet of straight-line approach to back into position, plus swing room. Tight driveways, sharp corners, low-hanging tree branches, and soft ground all complicate residential 40 foot deliveries. A 20 foot is meaningfully easier to place on a residential lot. Site survey first.
What can fit inside a 20 ft shipping container?
Roughly 10 standard pallets, the contents of a one to two bedroom home, a single car or pickup with spare parts, three to four motorcycles on a rack, about 1,172 cubic feet of storage, and up to 28,180 kg of useful payload. For trades contractor tool storage, residential renovation overflow, small business inventory, or single-vehicle storage, the 20 foot is right-sized.
What can fit inside a 40 ft shipping container?
Roughly 22 standard pallets, the contents of a three to four bedroom home, two cars end-to-end, six to eight motorcycles on a rack, about 2,390 cubic feet of storage, and up to 26,680 kg of useful payload. For mid-size moves, multi-vehicle storage, larger business inventory, or container conversion projects with multiple rooms, the 40 foot is the right size.
Is two 20 ft containers better than one 40 ft for a small business?
Sometimes. Two 20 footers cost more upfront than one 40 footer but give you twice as many door openings, the option to split locations, and a slightly larger resale market later. If your storage is at multiple sites or your demand is likely to grow, two 20s can be the smarter choice. If your use is centralised and settled, one 40 is cleaner.
Does a 40 ft container cost twice as much in delivery freight?
No. Most delivery freight charges are similar for 20 foot and 40 foot containers within the same zone, because the trailer routing distance is the same. The big delivery savings on a 40 footer come from collapsing two 20 foot trips into one 40 foot trip. For a single-container order, the freight cost is comparable.
Sources
- International Organization for Standardization. (2022). ISO 6346:2022 Freight containers, Coding, identification and marking. iso.org/standard/82754.html
- Metropolitan Logistics. (2026). Shipping Container Sizes and Prices in Canada: Complete 2026 Buyer Guide. metropolitanlogistics.ca
- Container xChange. (2026). 20ft and 40ft shipping containers: How to choose. container-xchange.com
- Transport Canada. (2025). Cargo Securement Standard 10, Containerized Cargo. tc.canada.ca
- Mobile Modular Containers. (2026). Shipping Container Weight: Tare, Payload, and Road Limits for 20ft and 40ft Units. mobilemodularcontainers.com
Reach Van Blanc in Brantford
Van Blanc stocks both 20 foot and 40 foot containers in standard and high cube heights, in new (one-trip) and used (cargo worthy and wind-and-watertight) grades. The 20 versus 40 decision is one we walk through with buyers nearly every day, and the right answer changes case by case based on your cargo, site access, and capital plan.
Van Blanc Ent. Inc. 90 Morton Ave E Unit 1B, Brantford, ON N3R 7J7. 519-754-6844 (cell) or 1-888-509-6658 (toll-free).
We deliver across Ontario in 1 to 3 days on a cash-on-delivery basis. Worth the drive to walk both sizes side by side in our Brantford yard before you commit. The decision reads differently on paper than it does standing in the gravel between a 20 and a 40.
Related Reading
- 20 ft Shipping Containers in Stock
- 40 ft Shipping Containers in Stock
- High Cube vs Standard Shipping Container
- New vs Used Shipping Container in Canada
- All Shipping Containers for Sale
- Container Size Guide
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The Decision by Use Case
The math above settles the spec; use cases settle the choice. Residential storage almost always lands on a 20: it fits a driveway and holds a household’s overflow. Workshop conversions split: a 20 makes a tool room, a 40 makes a shop you can stand a project in. Whole-household moves and business inventory want the 40, usually high-cube, because the second trip a 20 forces costs more than the size difference. Container homes and large studio builds start at 40HC for layout reasons. The honest matrix: choose the 20 when access is tight or the contents are bounded; choose the 40 when the contents grow, the site is open, and one box should end the conversation.
