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Doorway Water Tanks - 501 to 1000 Gallons - 1001 to 2500 Gallons - Rainwater Harvesting Tanks

The Perfect Solution for Tight Spaces
You need to store a large volume of water, but your only access is a standard doorway. This common problem stops many from having a dedicated water supply. The solution isn’t to settle for a small, inefficient tank; it’s to choose a slim tank built for the challenge. At Tank Depot, our doorway water tanks are designed with an ultra-slim profile that effortlessly fits through conventional doorways, giving you access to spaces once considered off-limits for water storage....

All of our freestanding doorway tanks have a width of not more than 30” with some models as slim as 11”. We offer a full line of these plastic doorway tanks from industry leaders like Norwesco, Bushman, and ThinTanks, ensuring a reliable, long-lasting solution that maximizes your space without compromise.

Applications of Doorway & Slimline Tanks

Residential & Home Use
Residential & Home Use

Stop compromising on water storage. A slimline water tank is the perfect fit for your modern home, providing a discreet, out-of-the-way solution. Place it against a wall in your garage, basement, or utility room to secure a reliable source of drinking water for emergency preparedness, without sacrificing valuable floor space.

Rainwater Collection
Rainwater Collection

Harvest water efficiently with a poly tank that blends into your home's exterior. These doorway water tanks can be easily positioned along a wall and connected to a downspout, allowing you to collect and reuse rainwater for landscaping, gardening, and other non-potable needs.

Commercial & Industrial
Commercial & Industrial

Don't let space constraints limit your operations. For businesses with tight access points, these plastic doorway tanks offer a flexible solution for storing process liquids, providing a temporary water supply for maintenance, or serving as a backup source for commercial appliances.

Why Choose Tank Depot for Doorway Water Tanks

Unrivaled Selection
Unrivaled Selection

We offer an extensive lineup of slimline water tanks from industry-leading manufacturers, including ThinTanks, Norwesco, and Bushman. This ensures you can find the perfect tank with the right dimensions and features to fit your specific space.

Engineered for Tight Spaces
Engineered for Tight Spaces

Our tanks are uniquely designed to fit through conventional doorways, a feature that Norwesco has perfected in its freestanding water tanks. They stand upright without the need for additional stands or bands, maximizing floor space in garages, utility rooms, and against outdoor walls.

Safety and Durability
Safety and Durability

We prioritize your peace of mind. All our plastic doorway tanks are rotationally molded from FDA-approved, UV-stabilized polyethylene. They are seamless, corrosion-resistant, and built to withstand harsh conditions, ensuring safe and long-term water storage.

Innovative Features
Innovative Features

We offer slimline tanks with unique, optional value-added features. From the aesthetically pleasing, fence-like design of ThinTanks to the optional strainer baskets and accessory ports on Bushman tanks, our products provide more than just storage—they offer smart water management solutions.

Customization and Accessories
Customization and Accessories

We know every project is unique. Our freestanding tanks are designed with multiple flats for easy installation of additional fittings. We also offer a wide range of accessories, such as tank-to-tank connectors, to help you create a customized system that meets your exact requirements.

Trusted Brands and Expertise
Trusted Brands and Expertise

We partner with the best in the business. By offering products from manufacturers with decades of experience, we provide a superior product backed by a manufacturer's warranty. Our team of experts is also available to help you select the ideal doorway water storage tank for your needs.

Find Durable Doorway Water Tanks For Sale at Tank Depot

When you need a tank that fits your space and your budget, you don't have to compromise on quality or capacity. Our collection of American-made slimline water tanks is the smartest solution for space-saving water storage. We've brought together the best products from trusted manufacturers so you can easily find a durable, long-lasting tank that's ready to use.

Explore our full line of doorway water tanks for sale below and secure the perfect water storage solution for your home or business today.
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Capacity Name Diameter Length Width Height SKU Price
Buy 528 Gallon FatTank With Strainers by ThinTanks for only $0.00 528 Gallons Buy 528 Gallon FatTank With Strainers by ThinTanks for only $0.00 ThinTanks 528 Gallon FatTank With Strainers 59.04 29.53 77.56 PD-2906 As low as$2,850.00
Buy 528 Gallon ThinTank With Strainers by ThinTanks for only $0.00 528 Gallons Buy 528 Gallon ThinTank With Strainers by ThinTanks for only $0.00 ThinTanks 528 Gallon ThinTank With Strainers 94.49 18.5 77.56 PD-2905 As low as$2,850.00
Buy 793 Gallon ThinTank With Strainers by ThinTanks for only $0.00 793 Gallons Buy 793 Gallon ThinTank With Strainers by ThinTanks for only $0.00 ThinTanks 793 Gallon ThinTank With Strainers 117.32 22.83 77.56 PD-2907 As low as$3,450.00
Buy 1057 Gallon ThinTank With Strainers by ThinTanks for only $0.00 1057 Gallons Buy 1057 Gallon ThinTank With Strainers by ThinTanks for only $0.00 ThinTanks 1057 Gallon ThinTank With Strainers 117.32 29.53 77.56 PD-2908 As low as$4,250.00
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