The Snyder Industries 13,800-gallon HDPE vertical tank is a major bulk storage asset, standing 184 inches tall on a 165 x 165 inch footprint. Molded from white polyethylene and carrying a 1.5 specific gravity rating, it stores water and heavier liquids at full volume without the wall thinning you have to watch for in lower-rated tanks. If you are sizing a bulk water store, fire reserve, or process holding tank, this is the upper end of what a single poly vertical storage tank can do.
Will it work for your site?
The numbers that matter on a vertical tank this size are the loaded weights and the install envelope. Filled with water, it carries 115,092 lb. At its maximum rated contents, the 1.5 specific gravity ceiling, it reaches 172,638 lb. That is the load your foundation has to carry, so the pad design has to come first, not last. A 165 x 165 inch footprint under that kind of weight puts you squarely in concrete-pad territory; our concrete pad sizing guide walks through the ACI 360R-10 framework and where the ACI 318 boundary sits. The 184-inch height is over 15 feet, so plan overhead clearance for the delivery and crane set, and account for fill-line height and top-fitting access in your layout. To confirm this capacity matches your draw and refill cycle, run the numbers through our Tank Sizing Calculator and the Tank Sizing Guide.
Wall thickness and the 1.5 SG rating
This is an ASTM-certified HDPE vertical built to the sizing logic operators of large tanks need to understand. The wall is engineered thicker at the base where hydrostatic pressure is highest and tapers up the sidewall. The one spot people overlook is the vapor-saturated headspace near the top, where premature failures often originate and routine liquid-side inspection misses them; our guide on HDPE tank wall thickness at the vapor-saturated headspace explains the ASTM D1998 sizing logic behind it. Fitting sizes and positions are confirmed on the technical drawing on this page, so do not assume a standard inlet, outlet, or vent configuration. Check the drawing for the exact dimensional callouts and fitting layout before you finalize plumbing.
Common use cases at this size
A 13,800-gallon vertical is large enough to serve as a fire-water reservoir for rural and remote sites; if that is your application, size it against NFPA 22 discipline rather than convenience, and plan freeze protection if you are in a cold climate. Our fire-water reservoir design guide covers the sizing math and the polyethylene tank's role in a private fire protection stack. If your service ever moves toward a double-wall containment requirement, the Snyder Captor double-wall freeboard sizing guide explains how much usable volume you actually get once freeboard is accounted for.
The mistake to avoid
The single biggest error on a tank this large is pouring or approving a pad sized to the empty tank or to the water-full weight alone. Design to the maximum rated contents weight of 172,638 lb, not the 115,092 lb water figure, so you have margin if the stored liquid is ever denser than water. Get the foundation engineered to that ceiling and this tank will outlast the pad it sits on.
This HDPE storage tank ships LTL freight from the Snyder plant in Washington Court House, OH, quoted live to your ZIP, so you can see at a glance whether you are a regional or cross-country haul before you pull a rate. Get your exact number with our Freight Cost Estimator, or call 866-418-1777 and we will line up the carrier and the rate for a tank this size. Listed price is before freight.
