The Enduraplas 7011 Gallon Black Vertical Storage Tank (SKU THV07011B) is a large-capacity polyethylene vessel built for serious bulk storage, holding 7,011 gallons on a 144 in x 144 in footprint (12 ft x 12 ft) and standing 126 inches tall. Molded in black polyethylene, it carries a 1.9 specific gravity rating, which is what makes it a workhorse for heavy bulk water and dense-liquid duty where a standard 1.0-1.5 SG tank would be under-spec'd. If you have searched for a large black vertical tank or a bulk vertical storage tank and kept hitting capacity or SG ceilings, this is the size class that closes the gap.
Will it work for your site?
At this capacity, weight drives every decision. Filled with water, the tank carries roughly 58,472 lb of contents. At its full 1.9 SG rating it is engineered to hold up to 111,096 lb, which is simply 7,011 gal x 8.34 lb/gal x 1.9 SG, so you can back-calculate your own liquid's fill weight against that ceiling. Because 1.9 is the top of the rating scale, it covers essentially any dense industrial liquid you would put in a poly tank, so you will not out-grow the SG. Run your volume through the Tank Sizing Calculator and confirm the approach against the Tank Sizing Guide before you commit to a foundation.
Foundation, fittings, and design planning
A tank this heavy is a structural decision as much as a storage one. Our guide on concrete pad sizing for above-ground polyethylene tanks walks through the ACI 360R-10 framework and the ACI 318 boundary, which is exactly the reference for a 111,096 lb design load. For a fire-water or rural reservoir role, the fire-water reservoir tank design guide covers NFPA 22 sizing and cold-climate freeze protection, and reuse or aggregation setups are mapped in our industrial water reuse tank topology breakdown. Note that outlet size, quantity, and gasket type are not published for this SKU, so confirm all fitting and bulkhead locations against the technical drawing on this page or call 866-418-1777 before you plan plumbing runs.
The mistake to avoid
Do not under-build the pad. The most expensive error on a tank this large is treating a 7,011-gallon vessel like a smaller one and pouring a slab that cannot carry the filled load. Verify the 126 in height and 144 in x 144 in footprint against your clearance and access, and check your subgrade bearing against the full-rated weight, not just water weight, if you may ever store anything denser than water.
This tank ships LTL freight, quoted live to your ZIP, from the nearest molding plant in Converse, TX or Neche, ND. Southern and central US deliveries typically route from Converse, TX and northern-tier deliveries from Neche, ND; the estimator returns the cheaper lane automatically. Get a real number for your address with the Freight Cost Estimator, or call 866-418-1777 for help sizing, siting, and scheduling delivery on a tank this size.
