A standard 40-foot Shipping Container measures 40 ft long × 8 ft wide × 8 ft 6 in tall on the exterior, with 2,350 cubic feet of interior volume and a maximum cargo capacity of 58,863 lbs. A 40-foot high cube adds one foot of height (9 ft 6 in), increasing usable volume to 2,694 cubic feet. Both share the same 40-foot footprint, so the high cube delivers roughly 15% more vertical space without taking up more ground area.
| Spec | Standard 40 ft | 40 ft High Cube |
| Exterior length | 40 ft (12.19 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) | 9 ft 6 in (2.89 m) |
| Interior length | 39 ft 6 in (12.02 m) | 39 ft 6 in (12.02 m) |
| Interior width | 7 ft 8.5 in (2.35 m) | 7 ft 8.5 in (2.35 m) |
| Interior height | 7 ft 10 in (2.38 m) | 8 ft 9 in (2.69 m) |
| Door opening (W × H) | 7 ft 8 in × 7 ft 5 in | 7 ft 8 in × 8 ft 5 in |
| Interior volume | 2,350 cu ft (66.5 m³) | 2,694 cu ft (76.3 m³) |
| Floor area | ~320 sq ft | ~320 sq ft |
| Tare (empty) weight | 8,333.5 lbs (3,780 kg) | 8,862.6 lbs (4,020 kg) |
| Max cargo weight | 58,863 lbs (26,700 kg) | 58,334 lbs (26,460 kg) |
| Max gross weight | 67,197 lbs (30,480 kg) | 67,197 lbs (30,480 kg) |
Your Shipping & Storage Container Experts
40-foot shipping containers are used to store or transport personal items, secure construction tools, materials, and even vehicles. They protect materials from weather, are portable, and are popular in industries such as retail, hospitality, and construction.
I’m Steve Hyndman, Vice President of Aztec Container. With over 30 years of expertise in shipping container solutions, I have helped countless clients make the best use of 40 foot shipping container dimensions for their diverse needs.
Continue reading to understand the specific sizes, uses, and benefits of these versatile containers.
What Are the Exact Dimensions of a 40-Foot Shipping Container?
The standard 40-foot shipping container is the workhorse of the global shipping container size system. Its exterior measures 40 ft long, 8 ft wide, and 8 ft 6 in tall. Interior usable space comes in slightly smaller because of the steel walls: 39 ft 6 in long, 7 ft 8.5 in wide, and 7 ft 10 in tall.
That interior works out to 2,350 cubic feet and about 320 square feet of floor area — enough to hold the contents of a two- to three-bedroom home. These standardized measurements are why the 40-foot unit dominates ocean freight and intermodal transport worldwide.
What Is the Difference Between a Standard and High Cube 40-Foot Container?
The only structural difference is height. A standard 40-foot shipping container stands 8 ft 6 in tall; a 40-foot high cube stands 9 ft 6 in — one extra foot. Width, length, and footprint are identical.
That single foot adds 344 cubic feet of capacity (2,350 → 2,694 cu ft). For palletized cargo, racking systems, machinery, or any conversion where headroom matters, the high cube is usually worth the modest price premium. For straightforward storage, the standard container is the more economical container size.
Interior vs. Exterior Dimensions: Why the Gap Matters
Exterior dimensions tell you how much ground space the container occupies and whether it fits your site or a truck slot. Interior dimensions tell you what actually fits inside.
The most overlooked measurement is the door opening, which is narrower than the interior: 7 ft 8 in wide and 7 ft 5 in tall on a standard 40-foot container. When loading wide pallets, vehicles, or bulky equipment, plan around the door opening — not the interior width — or you risk items that fit inside but won’t pass through the doors.
How Much Weight Can a 40-Foot Shipping Container Hold?
A standard 40-foot container has a tare (empty) weight of 8,333.5 lbs and a maximum cargo weight of 58,863 lbs, for a gross limit of 67,197 lbs. The high cube carries a near-identical max gross weight because its heavier steel frame slightly reduces payload (58,334 lbs cargo).
For volume planning, a standard 40-foot container holds approximately 21 American pallets or 25 Euro pallets in a single layer — a key reason it’s the default unit for full-container-load ocean freight.
Your Shipping & Storage Container Experts
What Can You Use a 40-Foot Container For?
The 40-foot Shipping container is among the most versatile storage containers for sale because the same steel box adapts to storage, transport, workspace, and construction.
Storage solutions
- Personal & household: Holds a two- to three-bedroom home’s contents during moves or renovations.
- Construction sites: Ground-level entry and lockable steel doors secure tools, materials, and equipment.
- Retail & seasonal inventory: Weatherproof offsite storage for overflow or seasonal stock.
- Vehicle storage: A 40-foot car storage container can secure one to two vehicles plus parts, protecting classic cars, project vehicles, or fleet assets from weather and theft.
Transportation
- Ocean freight: Built from corten steel to survive harsh sea conditions on long-haul routes.
- Intermodal transport: Standardized dimensions let the same container move between ship, rail, and truck without unloading — cutting handling time and cost.
Construction & conversions
- Container homes & ADUs: Stackable, modifiable, and faster to build than traditional structures.
- 40-foot office container: A popular conversion — a 40-foot high cube fitted with windows, HVAC, insulation, and electrical becomes a 320 sq ft mobile office, jobsite command center, or workshop. The extra high-cube headroom makes the interior feel far less cramped once insulation is added.
Specialized 40-Foot Containers
Beyond the standard dry box, 40-foot units come in specialized configurations:
| Type | Best for | Notes |
| Standard dry | General storage & freight | Most common, lowest cost |
| High cube | Tall cargo, conversions | 1 ft height, +15% volume |
| Used refrigerated container (reefer) | Cold/frozen storage, perishables | Insulated + powered cooling; ideal as an affordable cold-storage unit when buying new isn’t justified |
| 40-foot office container | Mobile offices, jobsite space | Modified high cube with windows, HVAC, power |
| Open-side / double-door | Easy loading of bulky items | Wide access along the side or both ends |
A used refrigerated container is a cost-effective route to onsite cold storage for restaurants, farms, breweries, and event venues — delivering temperature control at a fraction of the price of a purpose-built walk-in cooler.
Your Shipping & Storage Container Experts
How to Choose the Right 40-Foot Container
Match three decisions to your budget and intended use.
| Grade | Condition | Best for |
| One-trip (new) | Near-perfect, single voyage | Living spaces, high-value or visible use |
| Cargo Worthy (CWO) | Minor rust/dents, still seaworthy | Shipping and reliable storage |
| Wind & Water Tight (WWT) | No leaks, more cosmetic wear | Static storage |
| As-is | Possible holes or door issues | DIY buyers handling repairs |
- Standard vs. high cube: pick high cube if you need headroom or plan to insulate and convert.
- Door style: standard double doors, open-side for bulky loading, or custom modifications (windows, HVAC, partitions).
Frequently Asked Questions about 40-Foot Shipping Containers
What are the dimensions of a 40-foot shipping container in feet?
Exterior: 40 ft long × 8 ft wide × 8 ft 6 in tall (standard) or 9 ft 6 in tall (high cube). Interior: 39 ft 6 in × 7 ft 8.5 in × 7 ft 10 in (standard).
How many square feet is a 40-foot container?
Roughly 320 square feet of floor space, regardless of standard or high cube.
Is a 40-foot high cube worth the extra cost?
Yes, when you need vertical clearance — palletized goods, tall equipment, racking, or a converted office/home where insulation eats into ceiling height. It adds ~15% volume on the same footprint.
What is a conex container?
“Conex” is industry shorthand for a standard steel shipping container; a 40-foot conex and a 40-foot shipping container are the same unit.
Can a 40-foot container store a car?
Yes. A 40-foot car storage container comfortably secures one vehicle (often two compact cars end to end) plus equipment, with weatherproof, lockable protection.
Conclusion
In summary, 40-foot shipping containers offer a versatile and durable solution for various applications, from storage to transportation to construction. Understanding the dimensions and differences between standard and high cube containers helps you make informed decisions based on your specific needs.
At Aztec Container, we provide a range of 40-foot shipping containers for sale or rent, ensuring you get a reliable and high-quality product. Our containers are built to withstand harsh elements, making them ideal for secure and long-lasting use.
Whether you need a container for storing personal items, transporting goods, or constructing modular homes, we have the right option for you. Our team is committed to offering transparent pricing, professional service, and expert local delivery.
Ready to find the perfect 40-foot shipping container? Contact us today for a quote! We’re here to help you with all your container needs.
For more information, reach out to us. We look forward to assisting you!