The Snyder Industries 20000 Gallon HDPE Vertical Liquid Storage Tank (SKU SII-3030000C26) is a white, high-density linear polyethylene vertical storage tank built for large-volume water and liquid storage where a small footprint and tall column matter. It stands 242 inches tall on a 165 x 165 inch footprint and is molded from high-density linear polyethylene per the ASTM D1998 sizing logic covered in our wall-thickness guide. Rated to 1.9 specific gravity, the shell is qualified for liquids up to roughly 1.9 times the density of water. Full of plain water this tank holds about 166,800 pounds of contents; at its maximum rated 1.9 SG it is built to carry up to 316,920 pounds. Those are the numbers that drive your pad design, not a guess.
Will this 20,000 gallon vertical tank work for your site?
At 20,000 gallons in a vertical column, this is a tank you size around foundation and access, not just capacity. The 165 x 165 inch footprint and 242 inch height belong on an engineered above-ground pad. The 1.9 SG rating is a hydrostatic qualification, not spare capacity for water, so size your pad to the service you will actually run, then check the math against the heavier rated load. Before you commit, run your volume and refill numbers through the Tank Sizing Calculator and the Tank Sizing Guide so the tank matches your draw-down and standby needs. If this is fire-water or rural reserve storage, our guide on fire-water reservoir tank design for rural and remote sites walks through NFPA 22 sizing discipline and freeze protection, and a dedicated 20000 gallon vertical liquid storage tank buyer's guide covers this size class in depth.
Pad and foundation: get this right first
The most common and most expensive mistake on a tank this size is under-building the foundation. A 242 inch tall vertical tank loaded with water concentrates a heavy, tall load onto a 165 x 165 inch footprint, and that pad has to be flat, level, and continuously supported across the entire base. Our walkthrough on concrete pad sizing for above-ground polyethylene tanks lays out the ACI 360R-10 framework and the ACI 318 boundary so your contractor sizes the slab for the real load. It is also worth understanding where HDPE tanks actually wear: the piece on HDPE tank wall thickness at the vapor-saturated headspace explains the ASTM D1998 sizing logic and why premature failures often start above the liquid line.
Freight and fitting setup on a tank this size
A 20,000 gallon vertical tank ships LTL by freight, quoted live to your ZIP. This unit ships from the Snyder plant in Washington Court House, OH, and the rate depends on your delivery location and site access, so get an exact number before you order. Confirm offload equipment and overhead clearance for a 242-inch-tall unit before delivery. Fitting and outlet configuration is set at order, so call 866-418-1777 to specify your inlet, outlet, manway, and vent sizing along with site access. Run your ZIP through the Freight Cost Estimator for a live quote, or call 866-418-1777 to confirm delivery and offload requirements for a tank this large. Listed price is before freight; LTL is quoted separately.
