The 11000 Gallon Vertical Liquid Storage Tank is a Norwesco polyethylene vertical storage tank standing 167 inches tall on a 144-inch (12-foot) diameter footprint. Rated for liquids up to 1.5 specific gravity, it holds 11,000 gallons and is built for bulk water storage where capacity and a stable round base matter more than portability. If you are sizing a single large reservoir for rural fire protection, irrigation supply, process water, or rainwater and reuse aggregation, this is the kind of high-volume vertical tank that anchors the system. For spec-by-spec planning, see our complete 11,000-gallon vertical tank buyer's guide.
Will this Norwesco vertical tank work for your site?
The numbers to plan around: 11,000-gallon capacity, 167 inches of height, and a 144-inch diameter footprint, so confirm your pad and any overhead clearance before ordering. Because this is a large vertical storage tank, loaded weight drives nearly every install decision. Full of water (specific gravity 1.0) the contents alone weigh 91,740 pounds, and at the tank's full 1.5 specific gravity rating the contents can reach 137,610 pounds. The 1.5 rating is a capability, not just a caution: this tank is not limited to water, handling liquids up to 50% denser without giving up capacity, which is why it suits process and reuse service as well as plain water storage. For a quick reality check on volume versus available space, run your dimensions through the Tank Sizing Calculator and review the Tank Sizing Guide. See the technical drawing on this page for the fitting layout and detailed dimensions, and confirm exact bulkhead outlet, manway, and overflow sizes against that drawing or with our team before specifying pump and suction plumbing.
Pad, foundation, and anchoring
A tank holding this much weight cannot sit on bare or uneven ground. The 144-inch-diameter base needs a level, fully supporting foundation engineered for the loaded weight you intend to store. Our guide to concrete pad sizing for above-ground polyethylene tanks walks through the ACI 360R-10 framework and where the ACI 318 boundary applies, so your pad matches the 137,610-pound maximum rated load rather than just the water weight. Empty, a tank this tall and wide is also vulnerable to wind uplift, so anchor it to the engineered pad for both the loaded and empty load cases.
The mistake to avoid
The most common error on a tank this size is foundationing for water alone. The 91,740-pound full-water figure is only correct if you store nothing heavier than water; this tank is rated to 1.5 specific gravity, which is why the maximum rated contents weight is 137,610 pounds. If your application could ever hold a denser liquid, size the pad and any anchoring to that higher number from the start. If this tank feeds a private fire-protection system, read our guide to fire-water reservoir tank design for rural and remote sites for NFPA 22 sizing discipline and freeze-protection considerations. For a multi-source water program, our overview of industrial water reuse tank topology covers grey-water, rainwater, and HVAC condensate aggregation.
This Norwesco vertical storage tank ships LTL freight from Albertville, Alabama, quoted live to your ZIP code. At 144 inches wide and 167 inches tall it travels as oversized freight that typically requires open-deck transport and mechanical offload, so confirm site access and unloading equipment when you request your quote. Get an exact number with our Freight Cost Estimator or call 866-418-1777 to coordinate delivery. Detailed dimensions and the fitting layout are on the technical drawing on this page, and our team can help confirm this 11,000-gallon vertical tank fits your space and storage plan.
3 Year Warranty
