Yes, our storage containers are weatherproof! At American Trailer & Storage, our 10, 20, and 40-foot containers are built with 14-gauge steel walls, marine-grade plywood flooring, and standard locking cargo doors that seal out rain, wind, humidity, and dust. Your tools, materials, and inventory stay dry and protected, even during the hottest stretch of a Midwest summer.
What Makes a Storage Container Weatherproof?
Shipping containers were originally engineered to cross oceans, which means they were designed to handle salt spray, rain, and weeks of brutal sun. The same construction that protects cargo at sea protects your supplies on a lot in the Midwest.
Three features do the heavy lifting:
- 14-gauge steel walls. Thick corrugated steel resists dents, wind, hail, and whatever else a Midwest storm throws at it. It also blocks moisture completely.
- Marine-grade plywood flooring. Marine-grade flooring is built to resist moisture and humidity, so the floor stays solid underfoot and your materials stay off damp ground.
- Standard locking cargo doors. The double doors on every AT&S container close with gaskets that seal against rain and wind-driven dust.
Will the Summer Heat Damage What's Inside My Container?
A weatherproof container keeps precipitation and moisture out, but here's the honest answer from folks who've stood inside one in August: steel absorbs heat. On a 95-degree day, the inside of a standard container gets warmer than the air outside.
For most job site storage — tools, lumber, equipment, fixtures — that's not a problem. These materials handle heat fine, and the container protects them from the real threats: rain, humidity, UV exposure, and theft.
But if you're storing anything temperature-sensitive, or if people will be working inside the container, that's where modification comes in.
Can a Storage Container Be Climate Controlled?
Absolutely. Our technicians can modify any container you purchase with heating and cooling, which is one of our most popular upgrades, especially for ground-level offices. Add insulation, HVAC, ventilation, windows, and electrical, and a steel box becomes a comfortable on-site workspace in any season.
Climate control makes sense if you're planning to:
- Run a ground-level office where your team works daily
- Store temperature-sensitive materials like adhesives, paint, or electronics
- Convert a container into a customized space for your business
Come with the idea, and leave with a custom solution built to your exact specs.
How Do I Know Which Container Is Right for My Site?
You don't have to figure it out alone and you won't get stuck on hold with a 1-800 number trying. Call your local AT&S team, tell us what you're storing and for how long, and a real person in your market will walk you through it: rent, buy, or customize, with straightforward pricing and no hidden fees.
Once you've made the call, we deliver in 48 hours or less, placed exactly where you need it on your site. When the job wraps, we pick it up just as fast so your business keeps moving.
Frequently Asked Questions
Are storage containers waterproof or weatherproof? Weatherproof is the accurate term. Containers seal out rain, wind, snow, humidity, and dust in normal conditions. They aren't designed to be submerged, so place your container on level, well-drained ground for the best protection.
Do storage containers leak? A well-maintained container should never leak. At AT&S, we conduct regular inspections on our fleet to ensure the safety, quality, and condition of every container before it reaches your site.
How hot does it get inside a storage container in summer? Interior temperatures can climb 20–30 degrees above the outside air on sunny days. That's fine for most equipment and materials. For anything heat-sensitive — or any container people will work in — ask us about adding ventilation, insulation, or full climate control.
What sizes of weatherproof containers does AT&S offer? We offer 10, 20, and 40-foot containers, all built with 14-gauge steel walls, marine-grade plywood flooring, and locking cargo doors. Our team can help you pick the right size for your site and schedule.
Can I rent a weatherproof container short-term? Yes. We offer flexible rental options that keep your project on budget, plus rent-to-own conex containers if you're unsure about your long-term needs.
Need weatherproof storage on your site this month? Call your local AT&S office in Kansas City, St. Louis, Springfield, Omaha, Davenport, or Des Moines, IA. Talk to a real person, get straightforward pricing, and have your container delivered in 48 hours or less.