The Snyder Industries 6500 gallon HDPE vertical liquid storage tank is a 6,500-gallon polyethylene vertical storage tank built for bulk water and liquid storage where you need real volume in a single footprint. It stands 153.5 inches tall on a 120 x 120 inch base, so plan your pad and your overhead clearance before it arrives. Molded in natural white polyethylene and built to ASTM D1998, the standard that governs HDPE wall thickness for upright polyethylene storage tanks, its 1.5 specific gravity rating means the wall is engineered to hold heavier-than-water contents, not just plain water.
Quick spec reference
- Capacity: 6,500 gallons
- Footprint: 120.0 x 120.0 inches
- Height: 153.5 inches
- Material / color: HDPE, natural white
- Specific gravity rating: 1.5
- Full water weight: ~54,210 lb
- Maximum rated contents weight: ~81,315 lb
Will this tank work for your site?
Filled to capacity with water, this tank carries roughly 54,210 pounds of liquid weight, and its 1.5 SG rating supports a maximum rated contents weight of about 81,315 pounds. That second number is the one that matters for your foundation: a tank this size demands a properly engineered, level concrete pad rated for the full loaded weight, edge to edge across the 120 x 120 inch footprint. Anything less than a flat, fully supporting base and you risk stress-cracking the tank floor over time. The 1.5 specific gravity rating is a real advantage here — it lets you store denser, heavier-than-water liquids up to that gravity, service a standard 1.0 or 1.1 SG water tank cannot handle. If you are sizing for a specific liquid level or comparing against a smaller body, run the numbers through our Tank Sizing Calculator and review the Tank Sizing Guide first. For this exact model, the 6500 gallon vertical tank buyer's guide walks through the full purchasing picture.
Reading the specs and the drawing
The technical drawing on this page shows the dimensional layout for this specific model. Because a 6,500-gallon vertical tank can be ordered in different configurations, fitting layout — inlet, outlet, manhole, and vent sizes and positions — is set per order, so confirm those against the technical drawing or call 866-418-1777 before you commit a plumbing plan or pour a pad. For a deeper look at why the upper wall behaves differently than the liquid-side wall over a tank's service life, the HDPE tank wall thickness guide walks through the vapor-saturated headspace and the ASTM D1998 sizing logic that operators should understand. If this tank is headed into a rural fire-protection or reservoir role, the fire-water reservoir design guide covers NFPA 22 sizing and cold-climate freeze protection.
The mistake to avoid
The most common error on a tank this large is treating the 1.5 specific gravity rating as headroom you can ignore. It is a structural rating, not a free pass: if your contents are heavier than water, design to the 81,315-pound rated weight, not the 54,210-pound water number. And never partially support the base on blocks or an uneven slab. A vertical HDPE tank wants continuous, flat bottom support across its full 120 x 120 inch footprint.
This Snyder vertical storage tank ships LTL freight from the nearest of Snyder's plants in Lincoln, NE or Philippi, WV. Routing matters on a unit this size: an Eastern site will typically pull from Philippi, WV and a Central or Western site from Lincoln, NE, which can materially change your LTL quote. Freight is quoted live to your ZIP rather than included in the listed price — get an exact number through our Freight Cost Estimator, or call us at 866-418-1777 and we will work out the best routing for delivery to your site.
