20-Foot Shipping Container: Dimensions, Sizes & Weights
If you’ve been searching for a 20-foot shipping container in Edmonton, Calgary, Leduc, or anywhere across Alberta, Seabox Depot has what you need. Operating from our 5-acre yard in Leduc, right in the heart of Alberta we supply new and used 20 ft sea cans to homeowners, contractors, farmers, and businesses across the province.
Before you buy, it pays to understand exactly what you’re getting. This guide walks you through every key specification of a standard 20-foot container: exterior and interior dimensions, door openings, weight limits, payload capacity, and the best uses for Alberta properties and job sites.
Exterior Dimensions
The 20-foot dry freight container , also known as a TEU (Twenty-foot Equivalent Unit) — is the global standard of intermodal shipping. On the outside, a standard 20 ft container measures:
• Length: 20 ft 0 in (6.06 m)
• Width: 8 ft 0 in (2.44 m)
• Height (Standard): 8 ft 6 in (2.59 m)
• Height (High Cube): 9 ft 6 in (2.90 m)
Interior Dimensions
The usable interior is slightly smaller than the exterior due to wall, floor, and ceiling thickness. Inside a standard 20 ft container, you have:
• Interior Length: 19 ft 4 in (5.90 m)
• Interior Width: 7 ft 8 in (2.35 m)
• Interior Height (Standard): 7 ft 9 in (2.38 m)
• Interior Height (High Cube): 8 ft 9 in (2.70 m)
• Floor Area (approx.): 148 sq ft (13.9 m²)
Door Opening Dimensions
The double swing doors at the rear of a 20 ft container open to:
• Door Width: 7 ft 8 in (2.34 m)
• Door Height (Standard): 7 ft 5 in (2.28 m)
• Door Height (High Cube): 8 ft 5 in (2.58 m)
Weight & Payload Capacity
Weight specs matter whether you’re transporting goods or placing a container on a property in Alberta. Here are the key figures:
• Tare Weight (empty): approx. 4,850–5,070 lbs (approx. 2,200–2,300 kg)
• Maximum Gross Weight: approx. 66,140 lbs (approx. 30,480 kg)
• Maximum Payload: approx. 61,290 lbs (approx. 27,800 kg)
• Internal Volume (Standard): approx. 1,172 cu ft (approx. 33.2 m³)
• Internal Volume (High Cube): approx. 1,320 cu ft (approx. 37.4 m³)
What Can You Fit in a 20-Foot Sea Can?
A 20 ft container holds roughly the contents of a two- to three-bedroom home, or a solid volume of commercial goods. For Alberta buyers, that translates to practical examples like:
• Approximately 800–1,000 medium-sized moving boxes
• The full contents of a 2–3 bedroom home
• One standard half-ton pickup truck or compact vehicle
• A complete workshop with tools and equipment
• Seasonal gear , snowblowers, ATVs, hunting equipment, RV supplies
• Construction site materials, hand tools, and safety equipment
• Agricultural supplies: fencing, chemicals, seed, and small machinery
New vs. Used 20-Foot Containers in Alberta
- At Seabox Depot in Leduc, we carry both new and used 20 ft containers, and the right choice depends on your project.
- New containers have made only one trip from the manufacturing facility in China to Canada. They feature minimal wear, intact Corten steel construction, and fully operational door hardware.
- They’re the best option for modifications, residential conversions, retail pop-ups, or any application where aesthetics matter.
- Used (cargo-worthy) containers have been inspected and certified as wind, water, and light-tight with no major structural damage.
- They’re a cost-effective choice for construction site storage, farm yards, rental depots, and any application where function matters more than appearance.
- All used units in our Leduc yard can be viewed on-site before purchase, no surprises.
Popular Uses for 20-Foot Containers Across Alberta
The 20 ft sea can is one of the most versatile sizes available, and Albertans put them to work in a wide range of industries and settings:
• Secure on-site storage for oil sands, mining, and construction projects across Northern Alberta
• Farm and acreage storage in rural communities
• Retail pop-up shops in Calgary and Edmonton
• Converted home offices, backyard workshops, and garden studios
• Tool and equipment storage on Edmonton and Calgary job sites
• Temporary storage during home renovations or moves
• Emergency staging and disaster relief in remote Alberta communities
Why Buy Your 20-Foot Container from Seabox Depot?
Seabox Depot is based in Leduc, Alberta, centrally located between Edmonton and Calgary, and positioned to serve the entire province. Here’s what sets us apart:
- 5-acre yard with a diverse inventory of new and used containers, all available to view before purchase
- 30,000 sq ft CWB-certified shop for custom modifications, windows, doors, insulation, electrical, plumbing
- Delivery across Alberta, Saskatchewan, BC, and beyond
- Over 1,500 containers delivered last year
- Financing available to help you own your container outright
Ready to buy a 20-foot shipping container in Alberta? Browse our full inventory of new and used 20 ft sea cans. Shop 20-Foot Containers at Seabox Depot
Frequently Asked Questions
- How wide is a 20-foot shipping container?
A standard 20-foot container is 8 feet wide on the exterior and approximately 7 feet 8 inches on the interior. - How heavy is an empty 20-foot sea can?
An empty 20 ft container weighs approximately 4,850 to 5,070 lbs (2,200–2,300 kg), depending on the manufacturer. - Can a 20-foot container be delivered to my property in Alberta?
Yes. Seabox Depot delivers 20-foot containers across Edmonton, Calgary, Leduc, Red Deer, Grande Prairie, Fort McMurray, Lethbridge, Medicine Hat, and all points between. - What is the difference between a standard and High Cube 20-foot container?
A High Cube container adds one extra foot of height (9'6" exterior vs. 8'6"), giving you more vertical space inside. It’s ideal for storing tall items or converting the unit into a workspace. - Are used 20-foot containers weatherproof in Alberta winters?
Yes. All our cargo-worthy used containers are wind and watertight. Corten steel construction is built to handle extreme temperature swings, making them well-suited to Alberta’s climate.
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