On-site storage, we’ve got you covered

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Our mission is to deliver quality portable storage where and when it is needed with a dedicated, local customer service team.

We offer convenient storage and quick transportation for Colorado residents and businesses needing short- or long-term storage. Whether you are on the move, renovating, or are a business needing on-site storage for seasonal storage, excess inventory, or contractor projects, we’ve got you covered.

Our owners are both born and raised in Colorado and have created businesses throughout the state in industries from farming to development to storage and a wide range in between. Somewhere in the middle of all this activity, The Box Portable Storage was founded. Starting as a self-storage location in Greeley, CO by the name of 1st Avenue Storage, what materialized was a portable storage option that is locally owned and operated, provides a superior product and a convenient service for our own community.

No more moving from truck to storage space and back again. No more packing up materials and tools in separate locations for storage from job to job. We’re bringing that convenience and security directly to you.



meet our sister companies and Business Partners


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1st Avenue Storage provides prompt, quality, and secure services for all your storage needs. We are proud to offer an “all-in-one” facility that includes: onsite storage for both personal goods and RV’s, portable storage, and 24-hour accessible larger units.


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custom graphic works

Custom Graphic Works is an all in one design and print operation for everything including stickers, banners, large format items, business cards, vehicle wraps and more.  Our on-site designer can help you get the perfect look and our high-quality material, competitive pricing, and top-notch production staff will help your vision come to life.


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renewable fiber

We are your boots on the ground. We are your transportation professionals and your landscape-supply experts. Our team is ready to exceed your expectations and deliver high-quality supplies and logistics.


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Windham Developments

Windham Developments is proud to be a local company focusing on Owner Representation, Due Diligence, Entitlements, Planning, Land Use, Land Development & General Contracting.  Current focus is on light industrial development.