Shipping Container Dimensions and Sizes
Understanding standard shipping container size, shipping container dimensions, and shipping container measurements helps you choose the right unit for storage, transport, or building.
The most common shipping container sizes are 20 feet or 40 feet long, 8 feet wide, and 8.5 feet or 9.5 feet tall. The taller containers are called High Cubes. If you are wondering how wide is a shipping container is, the shipping container width for standard units is 8 feet on the exterior. In total, shipping container sizes come in lengths of 10 ft, 20 ft, 40 ft, or 53 ft. The inside measurements of shipping containers are a bit smaller. See exact shipping container dimensions below. These container sizes cover most residential, commercial, and agricultural projects and give you a clear sense of the size of shipping container that will work for you.
When people ask about the dimensions of a shipping container, they are usually comparing different shipping container size options for storage, shipping, or building projects.
See exact shipping container dimensions below:

Last updated: November 2023
Common Shipping Container Sizes Snapshot
Below is a quick view of standard shipping container size options that most customers use. Use this snapshot when you want to know the exact dimensions of a shipping container before you order.

20ft Standard Dry (8'6" x 8' x 20')
Weight: 4500 Ibs
Max Gross Weight: 66,139 Ibs
Interior Dimensions
Length: 19' 5"
Width: 7' 8-1/8"
Height 7' 9-5/8"
Door Opening
Width: 7' 8-1/2"
Height 7' 5-3/4"
Thickness
14 Gauge

40ft Standard Dry (8'6" x 8' x 40')
Weight: 8500 Ibs
Max Gross Weight: 66,139 Ibs
Interior Dimensions
Length: 39' 3/8"
Width: 7' 8-1/8"
Height 7' 9-5/8"
Door Opening
Width: 7' 8-1/2"
Height 7' 5-3/4"
Thickness
14 Gauge

40ft High Cube (9'6" x 8' x 40')
Weight: 8750 Ibs
Max Gross Weight: 68,008 Ibs
Interior Dimensions
Length: 39' 4"
Width: 7' 7"
Height 8' 9-5/8"
Door Opening
Width: 7' 8"
Height 8' 5"
Thickness
14 Gauge
These shipping container sizes are the most common standard shipping container size choices for storage, building, and freight shipping.
Rare Conex Box Container Sizes
Rare conex box shipping container sizes include the 10 ft and 53 ft containers. Due to a smaller secondary market for these sizes, they can be very costly when available. The 10 ft container is often used for smaller shipments or specialized freight, while the 53 ft container is an extra-long option for larger loads.
Customers looking for a 10 ft container will find that a 20 ft container, which is twice the size, typically costs less than a 10 ft unit. For those seeking a larger container than the 40 ft, it may be more cost-effective to purchase two 40 ft containers. This often results in a much lower cost per square foot compared to a 53 ft unit.
We understand that some customers may require a smaller 10 ft container due to space limitations, and we are here to help you find the right solution for your needs.
What Materials Are Used To Make Shipping Containers?

Shipping containers are often referred to as Conex boxes or ISO containers. They're all referring to the same type of steel container used for shipping goods internationally or domestically. All shipping containers are made to the same specifications per the International Shipping Organization (ISO) Standards with the same type of steel, thickness, structural beam to insure uniformity between all shipping container manufactures worldwide.
These containers are built to last. The primary material used to build an ISO shipping container is Cor-ten steel, also known as “weathering steel”. Cor-ten steel is a corrosion-resistant steel that is used in many industries where exposed steel is in harsh conditions. They also feature continuously welded steel framing to support an incredible amount of weight. The size of shipping container you choose does not change the core structural materials.
Here are the dimensions of the materials used to make shipping containers:
Walls: 14-gauge corrugated steel sheets with .075-inch thickness
Framing: 7-gauge tubular steel with 0.187-inch thickness
Floor Structure: 6” steel cross members
Flooring: Purin reinforced 1-⅛” Marine Plywood Floors
How Many Square Feet Are In Shipping Containers?
Deciphering the interior square footage within standard shipping containers clarifies how much floor space you'll have for your projects or storage. Square footage is another way to understand shipping container size without memorizing every shipping container measurement. As mentioned earlier, the inside dimensions of a shipping container are smaller than the exterior dimensions due to the space that the conex box walls and framing take up. Here's the essential square footage info:
10-foot container: 80 square feet on the exterior and about 75 square feet on the interior.
20-foot container: 160 square feet on the exterior and about 150 square feet on the interior.
40-foot container: 320 square feet on the exterior and about 300 square feet on the interior.
40-foot High Cube:320 square feet on the exterior and about 300 square feet on the interior.
How Many Cubic Feet Do Shipping Containers Have?

Buying a shipping container requires understanding the cubic footage of different shipping container sizes. It helps in selecting the right unit for your storage, shipping or building needs. Here's a quick rundown of exterior and interior cubic footage of shipping containers:
10-foot container: 680 cubic feet on the exterior and about 560 cubic feet on the interior.
20-foot container: 1360 cubic feet on the exterior and around 1,172 cubic feet on the interior
40-foot container: 2720 cubic feet on the exterior and about 2,350 cubic feet on the interior.
40-foot High Cube: 3040 cubic feet on the exterior and about 2,694 cubic feet on the interior.
High Cube Containers Vs Standard Shipping Containers

Should I buy standard sized shipping containers or a high cube container?
Shipping container dimensions are fairly simple to understand, as the only thing that really changes is the length of the shipping container, or the height if you're looking into high cube containers.
High Cube containers are a foot taller than standard shipping containers at 9.5 feet tall versus 8.5 feet tall.
High Cube containers are our best sellers because many people prefer more head space in container build projects, or they need storage space that can be stacked high. For many customers, the standard shipping container size is ideal, while others appreciate the extra headroom of a High Cube.
How to Choose the Right Container Size for Your Project
Embarking on a project that involves a shipping container means unlocking endless possibilities, whether for storage, transport, or innovative architecture. Choosing the right size is crucial, and here's how you can navigate this decision.
First, pinpoint your project's specific needs. For straightforward storage or transport, a standard 20-foot container might suffice. They're ideal for storage sheds, cabins, pop-up shops, or a shipping container garage.This container size works well when you need a balance of cost, space, and mobility.
However, if you're dreaming bigger—like constructing a container home, a container office, or a spacious art studio—a 40-foot container provides double the space, making it suitable for such ambitious projects. Its ample room is perfect for a chic, modern dwelling or a dynamic work environment.
For projects needing extra height, high-cube containers are perfect. They're a favorite for carports, commercial spaces, or tiny homes, offering that much-needed headroom or loft space. The size of shipping container you select depends on your layout, access, and budget.
How Much Do Shipping Containers Weigh?

Navigating the world of shipping can be a bit like learning a new language, especially when it comes to understanding all the jargon. Let's break down some of that heavyweight lingo—specifically tare, payload, and gross mass—so you can feel like the captain of your shipping endeavors!
First off, "tare weight" is just a fancy term for how much an empty container weighs. Different shipping container sizes and shipping container dimensions come with different tare weights.
10-foot shipping containers weigh about 2,200 pounds (1000 kg)
20-foot shipping containers weigh about 4,500 pounds (2,041 kg)
40-foot shipping containers weigh about 8,300 pounds (3,750 kg)
40-foot High Cube containers weigh about 8,800 pounds (4000 kg)
What is the Payload Weight For Conex Shipping Containers

The "payload" is the total weight of the cargo you can safely pack into your container. 40 foot containers can be loaded with up to 63,000 lbs of weight and stacked 10 high. That is why they are so useful for building multi-story homes, apartment buildings, and college dorms. Here are the precise payload capacities for every shipping container size.
10-foot shipping containers can safely hold about 20,000 pounds (9,071 kg)
20-foot shipping containers can safely hold about 61,729 pounds (28,000 kg)
40-foot shipping containers can safely hold about 63,053 pounds (28,600 kg)
40-foot High Cube containers can safely hold about 63,053 pounds (28,600 kg)
What Are The Sizes Of Conex Box Shipping Containers For Sale?
At Container One, we sell 3 sizes of conex box shipping containers: 20 foot standard, 40 foot standard, and 40 foot High Cube. 'Foot' refers to the length of the container. These container sizes match the most requested standard shipping container size options on the market. Here are the exact dimensions:
20 Ft Shipping Container Dimensions
20 foot Standard shipping containers are some of the most common shipping containers available for purchase and for freight and storage. 20 ft shipping containers have a length of 20 feet, a height of 8'6", and a width of 8 feet. Internally, their dimensions are 19'5" long, 7'8" wide, and 7'9" high. Their gross weight is 4,500 lbs. The door opening is 7'8" wide and 7'5" tall. Their square footage is 160 sq ft on the outside and around 150 sq ft on the inside. The cubic footage of storage space in a 20 ft Standard container is approximately 1,360 cubic feet on the exterior. If you are focused on shipping container width and door width, these measurements help answer how wide is a shipping container for loading and unloading. Get an instant quote on 20 ft standard containers.
40 Ft Standard Shipping Container Dimensions
40 foot shipping containers are the most often used as freight shipping containers for big businesses trading overseas. The shipping container dimensions for a 40 ft container are 40 ft long, 8'6" high, and 8 feet wide. Internally, these dimensions are 39" long, 7'8" wide, and 7'9" high. They have a gross weight of 8,500 lbs. The door opening is 7'8" wide and 7'5" tall. Their square footage is 320 sq ft on the outside and 300 sq ft on the inside. The cubic footage of storage space in a 40 ft Standard container is approximately 2,720 cubic feet on the exterior. See 40 ft shipping containers for sale if you need a larger shipping container size for your project.
40 Ft High Cube Shipping Container Dimensions
40 foot High Cube containers offer higher ceilings and more cubic footage of storage than standard 40 footers. The dimensions for a 40 ft High Cube container are 40 ft long, 9'6" high, and 8 feet wide. Internally, these dimensions are 39" long, 7'8" wide, and 8'9" high. They have a gross weight of 8,750 lbs. The door opening is 7'8" wide and 8'5" tall. Their square footage is 320 sq ft on the outside and around 300 sq ft on the inside. The cubic footage of storage space in a 40 ft High Cube container is approximately 3,040 cubic feet on the exterior. See40 ft High Cube container for sale if you want more height without changing the container size footprint.
Modified Shipping Container Dimensions and Sizes
Container One offers a variety of modified shipping containers in various sizes that are perfect for a range of uses, from secure storage to custom projects. These modified containers are available in sizes such as 10 ft, 20 ft, and 40 ft, and can be tailored to suit your specific needs. They are ideal for businesses, homes, or farms that require secure and versatile storage or specialized space for different applications.
Each of our container units come with features, such as windows, doors, insulation, or electrical setups, making them suitable for both storage and unique projects. If you want to customize your container further, we provide flexible options to meet your needs.
For more information on our modified containers, visit our collection page here.
Portable Storage Container Dimensions and Sizes


Container One also sells brand new portable storage containers in sizes of 8 ft, 12 ft, 16 ft and 20 ft that are ideal for self storage, moving or keeping job-site materials safe. 'Foot' refers to the length of the container. Here are the exact dimensions for storage containers:





