Modified shipping containers for sale
Sea cans that have already been built into something: site offices, workshops, garages, cabins, pop-up shops and storage fitted with shelving, power and extra doors. Buying one finished is usually faster than hiring a fabricator, and you can see exactly what you get.
New modified containers are added every week.
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Common modifications
- Man doors, roll-up doors and windows cut into the side walls
- Spray foam or batt insulation with plywood or steel liner
- Electrical panel, lights, outlets and a heater
- Shelving and racking for parts and tools
- Vents and a sloped or pitched roof to shed snow
Every cut opening needs a steel frame welded around it; a hole cut without one weakens the box.
Sea can garages and shops
A popular build on prairie farms and acreages is two 40 ft sea cans set parallel with a fabric or steel roof spanning the gap. The containers become lockable storage walls and the covered space between them becomes a shop or equipment shelter. Roof kits are sold to fit, but most municipalities treat the finished structure as a building that needs a permit.
What modified containers cost
A basic insulated job-site office starts around $13,000–$15,000 and finished units with heat, A/C and power commonly list for $25,000–$30,000 or more. Insulating a sea can with spray foam alone typically costs $2,000–$6,000 depending on size and foam thickness. Ask for the electrical inspection paperwork on anything wired.
Questions
Do I need a permit for a modified sea can?
Often, yes. A container used as an office, shop or living space is usually treated as a building, so check with your municipality before you buy. Wiring should be done by a licensed electrician and inspected.
Can I have a sea can modified to order?
Yes. Many dealers modify containers in their own yard. Use the quote form to describe what you need and up to three suppliers will price it.