In-Stock & Ready to Deliver

40-Foot Side Opening Container  Wide Access & Large Capacity

SuperBox offers these unique units, providing incredibly wide access and ample space, perfect for large-scale showrooms, extensive workshops, or simplified loading. These containers are built to give you the most flexible access to a large interior, making big projects easier to manage.

Backed by Trust & Industry Standards​

Proud Member of EPDA​

5-Star Google Reviews​

Recognized by NPSA​

Benefits of Choosing a 40-Foot Side Opening Container

  • Full Side Access

    The entire long side opens, making it incredibly easy to load oversized items, set up large displays, or create an open-air environment for events.

  • Versatile Design

    Ideal for pop-up retail, mobile showrooms, extensive workshops, or any project needing a wide, unobstructed opening to a big space.

  • Large Capacity with Easy Entry

    Combines the generous volume of a 40ft container with the convenience of side access, simplifying logistics for bulky goods.

  • Proven Durability

    Built from Corten steel for demanding international shipping, these units perform reliably for years in Hawaii's climate.

  • Strong Security

    When closed, the robust side doors provide excellent security, equipped with strong locking mechanisms.

  • Good for Customization

    The large opening is a perfect starting point for unique container fabrication into specialized units.

Detailed Specifications:

40-foot Side Opening Container Standards


External Dimensions (L x W x H):

40' x 8' x 8'6"

Construction Material:

Corten Steel (Corrosion-Resistant Steel)

Internal Dimensions (L x W x H):

Approx. 39'5" x 7'8" x 7'10"

Floor Type:

1.1" Marine-Grade Plywood

Side Opening Dimensions (L x H):

Typically 38'5" x 7'5"

End Door Opening Dimensions (W x H): 

Typically 7'8" x 7'5"

Tare Weight (Empty Weight):

Approx. 9,888 lbs

(Slightly heavier than standard due to reinforced frame)

ISO Code (if applicable):

For e.g., 45G1 (often modified from standard)

Payload Capacity (Max Cargo Weight):

Up to 59,000 lbs

Condition: 

Available in various grades: New, Used & WWT 

Gross Weight (Max Weight with Cargo): 

Up to 68,000 lbs

Appearance: 

New units are clean, used units show signs of wear.

Cubic Capacity: 

Approx. 2,385 cu ft

Ventilation:

Standard vents for air circulation.

Customization Options

Add full insulation types, drywall, and various flooring options for comfortable, finished interiors, maximizing the usable space. High-efficiency insulation options like spray foam or rigid panels ensure climate control, while drywall and a selection of flooring finishes transform the container into a fully customized, comfortable environment.

Ideal Applications

Easy Loading & Unloading

Ideal for items that are wide or awkward to load through traditional end doors, simplifying logistics.

Mobile Workshops

Benefit from abundant natural light and an open feel for artistic endeavors.

Storage

Safely store tools, machinery, supplies or other critical equipment, knowing it's fully secure. 

Our White Glove Delivery

Step 1: Get a Quote

After you've selected your new container or mobile office, our logistics team will contact you to confirm all the details. This includes the precise delivery address, any unique site requirements, and your preferred delivery date.

Step 2: Logistics

Our experienced logistics experts take over. We use our decades of expertise to plan the most efficient and safest route, even for complex deliveries with challenging access points. You receive regular updates throughout the process.


Step 3: Smooth Delivery

On your scheduled delivery day, our professional, certified driver arrives with your container or mobile office. Our team is equipped to navigate any on-site challenges to ensure secure placement. Your container arrives within 1-3 days.

We're Committed to 5-Star Service

Read our customers' feedback:

I was very happy with the container I bought from Superbox. It was the cheapest I found and delivery was on time and professional.  Sarah was a pleasure to deal with.

These guys are top notch we have purchased 6 containers from them already and always delivered on time and containers are always as described. They even do our container moves for us from Job site to job site.

This is the 2nd container we’ve purchased from Superbox Inc. to store in our church parking lot. Sarah has been amazing to work with and also great delivery drivers dropping the container right where we wanted it…

Ready for to get a custom quote?

Trusted by residents, businesses, non-profits

and government agencies

We have discounted rates for bulk shipping container buys for non-profits, government agencies and businesses.

SuperBox Case Studies

Scoring House Polo Club

At Scoring House Polo Club, we delivered a custom 20ft high cube container with sliding doors, skylights, a floating deck, full electrical package, and kitchen installation — fully mobile on a custom chassis.

Launcher Aerospace

For Launcher Aerospace, we converted a 20ft high cube container into an insulated meeting space with sliding doors, LED lighting, electrical setup, a rooftop deck, and steel staircase.

Fast delivery in just 1 to 3 business days


Getting your container ordered and delivered is seamless with our expert team. We always perform a delivery site assessment beforehand to confirm access and ensure any special equipment like tilt-bed trailers or Hi-Ab crane-equipped vehicles are ready for tight spots or challenging terrains.


Our team coordinates all delivery logistics, making sure your container arrives just where you need it, with ease. 

Have Questions?

Call US

888-830-3028

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Frequently Asked

Questions

  • What are the main benefits of a 40-foot side opening container?

    The primary benefit is the full, wide access along the long side, which is perfect for businesses like pop-up shops, mobile showrooms, or large workshops. It allows for easy loading of oversized items, creates an inviting open space for customers, and provides excellent natural light and ventilation,  useful in a variety of climates.

  • How is the structural integrity maintained with such a large side opening?

    Our container fabrication process for side opening units includes robust structural reinforcement around the new opening. We add heavy-duty steel framing and supports to ensure the container maintains its original strength and durability, adhering to safety standards even with the large side access.

  • Can this container be used for a temporary event space or a permanent structure?

    Yes, a 40ft side opening container is highly versatile for both temporary and permanent uses. Its portability makes it great for events, while its durable Corten steel construction and potential for extensive insulation types, HVAC, and interior finishing make it suitable for long-term, fixed structures.

  • What kind of site preparation is needed for a 40ft side opening container?

    Like all large containers, proper site preparation is crucial. This involves ensuring a level, firm surface, which might require a concrete pad or gravel base. We always perform a delivery site assessment to advise on the best preparation and ensure clear access for the large unit and specialized delivery methods and equipment.

  • Are there options to enclose the open side when not in use?

    Absolutely. We offer various custom doors for the open side, including bi-fold doors, glass sliding doors, or roll-up doors. These allow you to fully enclose and secure the space when needed, providing flexibility for different uses and weather conditions.