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Top Tips for Buying Used Shipping Containers

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Shipping containers have become one of the most versatile and cost-effective solutions for storage, workspace, and even construction projects. Whether you’re looking to store tools, create a mobile office, or build a custom structure, buying a used shipping container can be a smart and economical choice. But before you buy, it’s important to know what to look for. In this guide, we’ll walk you through the top tips for buying used shipping containers, especially if you’re based in Northern California.

Why Consider Used Shipping Containers?

Used shipping containers are steel units previously used for transporting goods internationally. After their initial shipping lifecycle, these containers are repurposed for secondary uses. They’re highly durable and can last for decades with proper maintenance.

Benefits of Buying Used

  • Cost Savings: Typically 30-50% less than new containers
  • Eco-Friendly: Reuse helps reduce waste and environmental impact
  • Readily Available: Faster procurement and delivery
  • Functional: Strong enough for storage, building, and modifications

Tip #1: Choose the Right Container Size

The two most common sizes are:

  • 20-foot containers: Ideal for residential or small business use
  • 40-foot containers: Best for large storage needs or commercial use

Before buying, measure the space where you plan to place the container and assess how much internal capacity you’ll need.


Tip #2: Understand Container Grades

Used containers are categorized into different grades based on their condition:

  • Cargo-Worthy (CW): Structurally sound and capable of international shipping
  • Wind and Watertight (WWT): Great for static storage, no leaks
  • As-Is: Lowest grade, may have visible damage or require repairs

Always ask the seller which grade you’re purchasing and request recent photos if buying online.


Tip #3: Inspect the Condition

Even if a container is graded, a visual inspection is highly recommended. Here’s what to look for:

  • Rust or Corrosion: Especially around the bottom edges and corners
  • Dents or Warping: Could affect integrity and stacking
  • Flooring: Check for rot, stains, or damage (usually marine-grade plywood)
  • Doors & Seals: Make sure they open and close smoothly and the seals are intact

Tip #4: Ask About Modifications

Do you need a container with added features like ventilation, doors, or windows? Ask if the container can be customized. At NorCal Containers, we offer modification services to fit your specific needs.

Common modifications include:

  • Roll-up doors or side access
  • Ventilation and insulation
  • Electrical outlets and lighting
  • Shelving and partitions

Tip #5: Consider Delivery and Placement

Make sure your site is accessible for a container delivery truck. Here are a few quick pointers:

  • Ensure level ground
  • Check overhead clearance
  • Prepare for truck access and turning space

NorCal Containers provides delivery throughout Northern California and can assist in planning the setup.


Tip #6: Know the Use Case

Understanding your purpose will help you choose the best type of container:

  • Storage: Choose a WWT or CW container with minimal modifications
  • Worksite Office: Go for a modified container with insulation and electricity
  • Retail/Pop-Up Shop: Look into custom doors, branding, and interiors

Tip #7: Work With a Trusted Local Supplier

Buying locally ensures faster delivery, better support, and the ability to inspect containers in person. NorCal Containers is a leading provider of used shipping containers for sale and rent in Northern California.

Why Choose NorCal Containers?

  • Wide selection of container sizes and grades
  • Customization options
  • Friendly, local customer support
  • Quick delivery across the region

Bonus Tip: Renting vs. Buying

If you only need a container temporarily, consider renting instead of buying. Rental options are available and may be more cost-effective for short-term needs.

Rental Benefits:

  • Lower upfront costs
  • Flexible contracts
  • Quick setup and removal

Final Thoughts

Buying a used shipping container can be a practical, budget-friendly solution for many residential and commercial needs. By following these tips—understanding grades, inspecting condition, choosing the right size, and working with a trusted provider—you’ll ensure a smart investment.

Ready to Buy?

Check out our current inventory at NorCal Containers or contact us to speak with an expert.


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