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Modifying Containers for Construction

Our certified experts modify containers to fit any of your construction needs.

Whether you restore homes, construct buildings or do heavy highway projects, we can modify a container to fit whatever you can imagine to make your jobsite better. We can modify containers to any size you need. We even build custom 24-foot containers specifically for plumbers and electricians, so you can rest easy knowing you have enough space for your large materials, tools and equipment.

These are the great features of buying containers your construction business can benefit from:

Inside of customized shipping container. Southwest Mobile Storage.


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Provide Your Design & Specifications

Ensure that your design includes all specifications you need and everything else you want. It’s easier to start with as many features you want and narrow down the list as you go through the process, than it is to add to the list later.

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Get an Initial Quote & Timeframe

Do you need them for storage, office or multi-use? How many containers? What sizes and door types do you need?

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Approval Process

Finalize your specifications and sign off on final quote.

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Make a Deposit

We require 50% of the total cost of your container modification before starting construction on it.

Storage container icon with tools. Southwest Mobile Storage.

We Build It with Quality Control

For your peace of mind, our certified weld inspectors and quality control inspectors inspect all work on your modified containers every step of the way, ensuring your build is of the highest possible quality.

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Pay Your Remaining Balance

The final 50% of your custom container is due before shipment.

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Delivery & Setup

Whether you need us to deliver and set it up for you, or just need our help loading it up on your trucker of choice to set it up yourself


Construction Containers to Modify

The possibilities are endless. We can modify containers into any size and custom build anything you need. You get the choice between cargo-worthy or one trip (new) containers for your custom container project. Cargo-worthy containers are wind-resistant, weathertight and typically spent 10 years carrying cargo. One trip containers have only made one cargo trip in their lifetime and are the newest possible option, as ISO shipping containers are not made in the US.

Standard Storage Containers for Rent


We’ve modified thousands of shipping containers for more than 25 years. No job is too small or too complex. Whether you just need door and window modifications or complex fabrications to turn your container into multi-story structures with plumbing and electricity – we can do it. As long as you get the proper permitting and planning done, the possibilities are truly endless.

No matter what you’re looking to create, our certified container fabrication experts can make your ideal custom container a reality.

Food & Beverage

Typical Applications

Container Events Bar
Mobile Coffee Outlet
Outdoor Catering
Pop-up Restaurant


Typical Applications

Exhibition Unit
Sales Office
Construction Site Office


Typical Applications

Car Dealerships
Pop-up Retail Shop
Auto Shop
Event Merchandising Stall
Barber Shop

Custom Use

Typical Applications

Confined Training
Garden Room
Bird Hides
Art Installation
Large Multiple Unit Container

Fire Training

Typical Applications
Customized fire training structures fabricated to meet the specific needs of the fire service industry, both domestic and international.

Container Farming

Typical Applications

Fully assembled and automated vertical, hydroponic farms built in 40 ft. insulated shipping containers.

Frequently asked questions

Do I need a design or drawing for my modified container?

You will need to provide a basic design, so we have an idea of what you want. We can draft the rest of your design based on any changes you request; however, we don’t correspond with zoning and/or permitting departments. 

Do you require a deposit for custom containers?

We ask that you pay 50% of the total cost of your container modification before we start construction on it. The final 50% is due before we ship it to you.

I have a large project in the pipeline. Would you be able to handle it?

Our 90,000 sq ft fabrication facility has an extensive staff of certified welders, electricians, plumbers, carpenters, engineers, painters and fabricators that frequently handle multiple container modification projects at a time. With such a large in-house staff and indoor facility, we’re able to provide you with precise, consistently high quality custom shipping containers no matter the size of your project. 

Do you offer a guarantee for modified shipping containers?

Modified containers come with an industry standard one year warranty.

Do you buy back containers that have been modified?

We may buy back a custom container, depending on the type of modifications, the condition of the container, our current inventory and market conditions. 

Do you have engineers on staff that can provide drawings?

We have engineers on staff who can provide basic drawings in the process of building your custom container; however, we don’t provide engineered or CAD drawings. 

What types of containers do you use for your construction?

We use ISO standard containers in varying condition for modifications. Choose from wind and weathertight (WWT) or one-trip containers, based on your needs and budget. 

What size containers do you modify?

We can custom build anything and modify containers to any size that you need. Whether you need an extra wide container or a multistory structure, the possibilities are endless. 

How delivery Works


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See our containers in action

Rows of blue storage containers. Southwest Mobile Storage.