The Norwesco 12000 Gallon HDPE Vertical Liquid Storage Tank is built for bulk water and liquid storage at scale, standing 193 inches tall on a 141-inch diameter footprint. Molded from polyethylene with a 1.9 specific gravity rating, it carries the headroom to hold liquids well denser than plain water, which makes it a workhorse for fire-water reservoirs, agricultural bulk supply, and industrial process storage where 12,000 gallons of capacity needs to live in a single vertical tank.
Will this tank work for your site?
Size your foundation around real loaded weight, not gallons. Filled with water, this tank carries roughly 100,080 pounds of contents; at its full 1.9 specific gravity rating the contents alone can reach about 190,152 pounds. That is a 90,072-pound jump over water, so the pad must be engineered to the 190,152-pound figure if you ever intend to run near 1.9 SG. Designing the foundation to the water weight is the failure mode. All of that load sits on a 141-inch diameter footprint, so the concrete has to be sized to match. Run the numbers with the Tank Sizing Calculator and the Tank Sizing Guide, and walk the pad math through our guide on concrete pad sizing for above-ground polyethylene tanks before you pour.
The 1.9 specific-gravity rating is the spec to read correctly
The most common mistake on a tank this size is treating the specific-gravity number as a license to fill it with anything. The 1.9 rating defines how dense a liquid the wall is engineered to hold at full height; the heavier your liquid, the harder the lower wall works. For straight water service (water = 1.0) that 1.9 rating is generous headroom, but it also means one tank can cover water, many fertilizer and UAN solutions, and process liquids up to 1.9 SG without stepping up to a more expensive model. Verify your liquid's specific gravity against the 1.9 rating before commissioning. Just as important is the fitting and gasket side: the only confirmed fitting on the technical drawing for this tank is a 22-inch lid, so bulkhead fittings, outlets, and the lid gasket all have to be matched to your stored liquid. Confirm gasket elastomer compatibility against your liquid, not just the tank wall, and see the technical drawing on this page for fitting locations and dome detail. For fire-protection duty, work through reservoir sizing and freeze protection in our fire-water reservoir tank design guide, read where large HDPE tanks actually fail in our breakdown of HDPE tank wall thickness at the vapor-saturated headspace, and get the full walkthrough of this size in our 12000 gallon vertical liquid storage tank buyer's guide.
Freight and site access on a tank this size
At 193 inches tall (about 16 feet) and 141 inches in diameter (about 11.75 feet), this tank moves as an oversized load and cannot be tilted into position the way a smaller tank can. Confirm overhead clearance, gate and door width, and whether you will offload by crane or forklift before you order. The freight advantage is real: Norwesco molds this HDPE vertical tank at four plants spanning four states, so almost any buyer is within roughly one freight zone of a molding point, which keeps LTL on a 100,080-pound-class oversized load materially shorter than competitors shipping from a single coast.
This Norwesco vertical storage tank ships LTL freight, quoted live to your ZIP code from whichever plant is nearest you: Fairfield, TX; Hanford, CA; St. Bonifacius, MN; or Washington Court House, OH. Get a real number with the Freight Cost Estimator, or call us at 866-418-1777 and we will match you to the closest plant and walk through delivery for a tank this size.
