Shipping Containers & Conex Boxes for Sale in Seattle, WA
Looking for shipping containers in Seattle? US Conex delivers new and used conex boxes, storage containers, cargo containers, and connex boxes across all of Washington state — from Seattle and Tacoma to Bellingham, Bellevue, Everett, Spokane, and beyond. All 10ft, 20ft, and 40ft units are inspected and backed by a 25-year warranty. Pay only after you inspect on-site.
Why Choose US Conex in Seattle?
✅ We accept all major debit and credit cards
✅ Fast 10 Business-Day Delivery
20ft & 40ft Conex Boxes for Sale in Seattle & Tacoma
US Conex offers the best prices on new and used conex boxes in Seattle and Tacoma. We have stock in two major depots in the Seattle-Tacoma area — covering 10ft, 20ft, 40ft standard, and 40ft High Cube sizes — and can deliver to your location within 10-20 business days or sooner. Whether you need a conex box in Seattle, a shipping container in Tacoma, or a storage container in Bellingham, request a quote to see our best deals.
Used Wind & Watertight Containers in Seattle
Used Cargo Worthy Containers in Seattle
New - One Trip Containers in Seattle
*Please note price does not include delivery and may vary depending on availability!
Where to Buy Used Shipping Containers in Seattle, Tacoma & Bellingham?
If you are looking for used shipping containers for sale in Seattle, Tacoma, Bellingham, or anywhere in the Pacific Northwest, US Conex has the inventory you need. A used conex box or connex box is the ultimate solution for extra storage, job site storage, custom modification projects, or container home builds across Washington state.
Since purchasing used storage containers is often done sight unseen, we provide complete transparency so you can shop confidently. We offer all standard grades, including Wind and Watertight (WWT) for secure storage, Cargo Worthy (CW) for structural integrity, and One Trip containers that look "like new." You can read our reviews or check out recent deliveries on our social channels to see the quality of our steel storage containers.
After selecting your size—whether a 20ft used shipping container or a 40ft High Cube container—you can instantly check shipping container prices and find out the delivery cost by entering your ZIP code in our quoting tool. Our agents will search our inventory of used shipping containers in Seattle and Tacoma yards to give you the total cost, including delivery to your location. For more information or to get a quote, call us today and our sales team will help you choose the best option.
Shipping Container Delivery Across Washington State & the Pacific Northwest
US Conex delivers more than 30 conex boxes and shipping containers daily within a 200-300 mile radius of our Seattle-Tacoma yards. We provide fast delivery to the entire region including Everett, Bellevue, Renton, Kent, Auburn, Federal Way, Puyallup, Bremerton, Olympia, Redmond, Bellingham, and beyond.
To schedule shipping container delivery to Seattle, Tacoma, or any city in Washington state, call us or enter your ZIP code in the quote tool above to check our current delivery timeframe.
Modified & Custom Conex Boxes in Seattle — From the Port to Pop-Up Shops
Seattle is a thriving seaport metropolis, and the Port of Seattle manages millions of containers annually. Used conex boxes and modified shipping containers have become a staple for local businesses needing secure on-site storage and cold storage that protects goods from the damp Pacific Northwest weather.
In recent years, custom shipping containers and modified storage containers have revolutionized Seattle's architecture. From the famous Starbucks Reserve Roastery to the Box House Hotel, steel containers are being repurposed into container offices, pop-up shops, and container homes in Seattle — creating sustainable spaces at a fraction of traditional construction costs.
Whether you are a developer looking for shipping container modifications, a contractor needing job site storage, or a homeowner interested in container homes in Seattle, our inventory supports this growing local ecosystem.
Custom & Modified Shipping Containers — Seattle Sizes & Options
Looking for modified containers in Seattle or custom storage containers built to your specifications? US Conex can source and deliver custom shipping containers for a wide range of Washington state applications:
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Custom container offices — prefab workspaces for construction sites and startups
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Modified storage containers — roll-up doors, shelving, lighting, and ventilation
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Double door containers in Seattle — easy access from both ends for workflow efficiency
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24ft containers in Seattle — a less common size we can source on request
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Container homes and ADUs — CW-grade units for residential conversion projects
Contact us to discuss your custom container project in Seattle and get a delivered price for the Washington state area.
Why Seattle Shipping Container Prices Are Among the Best in Washington
Our ability to offer competitive shipping container prices in Seattle and fast delivery across Washington state relies on the city's robust infrastructure. Seattle is a major logistics hub — and our direct access to Port of Seattle terminals, the Duwamish Waterway, and major rail lines means we pass the savings directly to you:
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I-5 allows us to rapidly deliver used shipping containers north to Everett and south toward Tacoma and Olympia.
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I-90 connects us to the east, allowing for delivery to Issaquah and beyond the Cascade Mountain Range.
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SR 99 and SR 520 provide critical access for our trucks to reach residential and commercial sites in downtown and the suburbs.
By leveraging access to the Port of Seattle and major rail lines like BNSF and Union Pacific, US Conex ensures that whether you need a 40ft used shipping container or a 20ft conex box, it arrives at your location quickly and affordably.
Seattle & Tacoma Businesses Using Conex Boxes — Real Case Studies
Emerald Studios, a Seattle-based film production company, deployed a 20 ft container from US Conex for on-set prop storage, cutting off-site rental costs by 30% and streamlining logistics within three weeks of order. The unit arrived in just 12 business days matching industry standard Seattle depot delivery times and ensured no delays to shooting schedules.
Cascade Brewery Co. utilized a 40 ft high-cube container to store kegs and event equipment for their annual Hop Fest, preserving inventory on-site without any structural modifications. This approach slashed external equipment hauling expenses by 40%, yielding annual savings exceeding $15,000.
Meanwhile, a popular Pike Place Market bistro used two 20 ft containers for peak-season ingredient storage, freeing up critical kitchen floor space and cutting off-site warehouse fees by 25%. By leveraging US Conex’s pay-after-inspection policy and Seattle depot, these clients benefit from cargo-worthy, wind- and watertight containers backed by responsive support and flexible payment terms
Customer Testimonials
5.0
"We needed extra space during a renovation, and US Conex delivered a 20ft used shipping container from their Seattle yard right to our driveway. The driver was skilled, and the box is wind and watertight. The perfect solution for on-site storage!"
Sarah M.
Seattle, WA
5.0
"I needed a secure job-site unit in Tacoma fast. US Conex had the best shipping container prices and delivered a 40ft High Cube container the very next day. The unit is clean, solid, and the doors work perfectly. Unbeatable service and fast delivery."
Mike D. Tacoma Construction Pros, WA
5.0
"I needed a secure job-site unit in Tacoma fast. US Conex had the best shipping container prices and delivered a 40ft High Cube container the very next day. The unit is clean, solid, and the doors work perfectly. Unbeatable service and fast delivery."
James L.
Logistics Manager, Kent, WA
Frequently Asked Questions
What types of shipping containers do you sell in Seattle?
US Conex sells new and used conex containers, shipping containers, storage containers, cargo containers, and sea containers in the Seattle-Tacoma area. All units are built from CORTEN anti-corrosive steel and available in three grades:
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New One-Trip — made one journey from the factory to the US, essentially brand new
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Used Cargo Worthy (CW) — certified for ocean export, structurally sound
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Used Wind & Watertight (WWT) — fully weatherproof, most affordable option
Available in 20ft standard, 40ft standard, and 40ft High Cube sizes. See current pricing in the table above.
What is the difference between a WWT and a CW container?
WWT (Wind & Watertight) containers are weatherproof and structurally sound — guaranteed no holes or leaks — but are not certified for ocean transport. They are the most affordable option for on-site storage, job sites, and residential use.
CW (Cargo Worthy) containers are certified for international ocean freight. They meet stricter structural standards and are the right choice if you need to export goods or require a container approved for shipping. CW units typically cost a bit more than WWT.
Both grades are inspected before delivery and backed by our 25-year structural and leak warranty.
Can I rent a conex container in Seattle?
Yes. US Conex offers conex container rental in Seattle with flexible terms from 1 to 24 months — no credit check and no security deposit required. We also offer a rent-to-own option where your monthly payments go toward purchasing the unit outright.
To rent or buy shipping containers in Washington, fill out our rental application on the Rent page and we'll review it within two business days.
Which areas in Washington and the Pacific Northwest do you deliver to?
From our Seattle-Tacoma yards, we deliver shipping containers across Washington state and the Pacific Northwest, including:
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Western Washington — Seattle, Tacoma, Bellevue, Everett, Olympia, Bellingham, Kent, Renton
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Eastern Washington — Spokane, Ellensburg, Yakima, Tri-Cities
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Neighboring States — Portland metro area and parts of Northern Oregon and Idaho
We deliver within a 300-mile radius, making us the go-to source for storage containers in Washington and shipping containers in Seattle.
Do I need a permit for a storage container in Seattle?
Permit requirements in Seattle depend on how and where you place the container:
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Temporary placement on a public street/right-of-way: You will need a Street Use Permit from the Seattle Department of Transportation (SDOT).
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Permanent placement on private property: You may need a zoning review or building permit from the Seattle Department of Construction & Inspections (SDCI).
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Temporary placement on private property (e.g. construction sites): Usually allowed without a permit, but you should verify setback requirements.
We recommend calling SDCI at (206) 684-8600 or checking the Seattle Services Portal before ordering if you plan a permanent installation.
Can I inspect the conex container in person before purchasing?
Depot visits are not allowed for safety and liability reasons — but our pay-after-delivery option effectively gives you the same protection. The container is delivered to your property, you inspect it on-site, and only then do you complete payment. If the unit does not match the agreed grade or condition, you are not obligated to accept it.
Every container is also covered by our 25-year structural and leak warranty from the date of delivery — covering significant structural defects and leaks for the life of the unit.
Are your shipping containers suitable for international shipping or export from the Port of Seattle?
Yes. Our Cargo Worthy (CW) grade containers are certified for international ocean transport and are available for export from the Port of Seattle or Port of Tacoma. If you need containers for international shipping, select CW grade when requesting your quote. Our New One-Trip containers are also export-ready and in near-pristine condition.
How is the shipping container delivered, and what site prep is required?
We deliver our containers using a tilt-bed truck, which slides the container off the back of the trailer directly onto the ground. You will need a flat, clear path that is at least 60 feet long for a 20ft container, or 100 feet long for a 40ft container. To get a total delivered price, enter your ZIP code in our quote tool. A container specialist will contact you within 3 business days to confirm availability and walk you through the order process.
