Double wall tanks from Steel Tank and Fabricating Corp. (STAFCO) offer built-in secondary containment, making them a preferred solution for applications where environmental protection, code compliance, or added safety is required.
Double wall tanks are designed with two layers of steel:
- Primary tank for fluid storage
- Secondary tank that acts as a containment barrier in case of a leak
This design eliminates the need for separate containment systems in many installations.
Applications
STAFCO double wall tanks are used to store:
- Gasoline
- Diesel fuel
- Waste oil
- Aviation fuel
- Chemical products
- Other hazardous or regulated liquids
They’re commonly found in:
- Fleet fueling facilities
- Industrial plants
- Equipment yards
- Remote refueling stations
- Emergency power system backups
Tank Construction and Materials
Available configurations include:
- Carbon steel or stainless steel
- Horizontal or vertical orientation
- Capacities from a few hundred to tens of thousands of gallons
- Optional features like pump platforms, ladders, fill ports, and gauges
Compliance-Ready Fabrication
STAFCO fabricates double wall tanks to meet multiple industry codes, such as:
- UL-142
- F921
- Flameshield®
- UL-2085 Fireguard® (for fire-rated installations)
We can also accommodate regional regulations and custom engineering requirements.
Advantages of Double Wall Tanks
- Built-in containment for leak prevention
- Reduced site preparation for containment infrastructure
- Easier compliance with EPA and local spill control regulations
- Long-term storage safety for volatile or hazardous liquids
Let’s Get Started
At STAFCO, we take pride in providing personal service—plain and simple. Contact us today to discuss your project and get a quote for a custom-built double wall tank.
Double Wall Skid Tanks
| Gallons | Tank Size / Material | RFQ | Images |
|---|---|---|---|
| 300 | 38″D X 5’0″L X 12GA/12GA | Request Quote | View Image |
| 516 | 46″D X 6’0″L X 12GA/12GA | Request Quote | View Image |
| 1,000 | 46″D X 12’0″L X 10GA/12GA | Request Quote | View Image |
| 1,000 | 64″D X 6’0″L X 10GA/12GA | Request Quote | Image Coming Soon |
| 1,500 | 64″D X 9’0″L X 7GA/10GA | Request Quote | Image Coming Soon |
| 2,000 | 64″D X 12’0″L X 7GA/10GA | Request Quote | View Image |
| 2,500 | 64″D X 15’0″L X 7GA/10GA | Request Quote | View Image |
| 3,000 | 64″D X 18’0″L X 7GA/10GA | Request Quote | View Image |
| 4,000 | 64″D X 24’0″L X 7GA/10GA | Request Quote | View Image |
Double Wall Tanks with Saddle Option
| Gallons | Tank Size / Material | RFQ | Images |
|---|---|---|---|
| 3,000 | 64″D X 18’0″L X 7GA/10GA | Request Quote | Image Coming Soon |
| 4,000 | 64″D X 24’0″L X 7GA/10GA | Request Quote | View Image |
| 5,000 | 96″D X 14’0″L X 1/4″/10GA | Request Quote | Image Coming Soon |
| 6,000 | 96″D X 16’0″L X 1/4″/10GA | Request Quote | View Image |
| 8,000 | 96″D X 21’4″L X 1/4″/10GA | Request Quote | View Image |
| 10,000 | 96″D X 27’0″L X 1/4″/10GA | Request Quote | View Image |
| 10,000 | 120″D X 18’0″L X 1/4″/7GA | Request Quote | Image Coming Soon |
| 10,000 | 126″D X 15’7″L X 1/4″/7GA | Request Quote | Image Coming Soon |
| 11,600 | 126″D X 18’0″L X 1/4″/7GA | Request Quote | Image Coming Soon |
| 12,000 | 96″D X 32’0″L X 1/4″/7GA | Request Quote | Image Coming Soon |
| 15,000 | 126″D X 23’9″L X 1/4″/7GA | Request Quote | View Image |
| 20,000 | 126″D X 30’0″L X 1/4″/7GA | Request Quote | Image Coming Soon |
| 25,000 | 126″D X 38’9″L X 1/4″/7GA | Request Quote | Image Coming Soon |
| 30,000 | 126″D X 46’6″L X 1/4″/7GA | Request Quote | View Image |
If you don’t see the exact size you need, feel free to contact us to review your requirements.
Need equipment for your double wall tank? STAFCO can help there as well. Our large inventory of pumps, vents, nozzles and gauges allow us to install most of the equipment at the factory if requested; enabling your double wall tank to quickly be put into service.
2,000 Gallon UL142 Double Wall Tank fully outfitted with pump, overfill prevention valve, spill container, all required venting and level gauge.
1,000 Gallon UL142 Double Wall Tank fully outfitted with pump, overfill prevention valve, spill container, all required venting and level gauge
8,000 Gallon 3-Compartment Double Wall Tank with 50′ hose reels and submersible pumps. Ready for use upon arrival at customers location.
