Steel Tank and Fabricating Corp. (STAFCO) offers a full range of UL-142 and F921 listed aboveground storage tanks designed for safe and compliant fuel and chemical storage. These tanks meet rigorous testing and construction requirements set by Underwriters Laboratories (UL).
UL-142 Tanks
UL-142 is the most widely used listing for aboveground steel storage tanks storing flammable and combustible liquids. UL-142 tanks are:
- Single wall or double wall steel construction
- Suitable for gasoline, diesel, ethanol blends, and other regulated liquids
- Built to meet both federal and local environmental requirements
They are commonly used in:
- Commercial fueling stations
- Vehicle fleet yards
- Power generation facilities
- Agricultural and industrial fueling sites
F921 Tanks
F921 tanks are a subtype of UL-142 tanks that feature double wall construction with built-in interstitial monitoring capabilities. F921 tanks are defined as:
- Vertical tanks supported on legs and skirted available with listing label
- Choose from integral support types including saddles and skids
- Support design available for all seismic requirements (engineering fee applies)
Applications include:
- Sites requiring additional containment assurance
- Installations where aboveground monitoring is preferred
- Facilities looking to avoid separate dike or berm systems
Construction and Customization
STAFCO builds UL-142 and F921 tanks to match specific project needs. Options include:
- Horizontal or vertical orientation
- Capacities from a few hundred to tens of thousands of gallons
- Carbon steel or stainless steel construction
- Custom fittings, ladders, gauges, vents, and safety systems
Choose the Right Certified Tank
UL-142 and F921 tanks help simplify inspections, reduce environmental risk, and provide long-lasting storage reliability. If you’re unsure which tank is best for your facility, we can walk you through the options.
Let’s Get Started
At STAFCO, we take pride in providing personal service—plain and simple. Contact us today to get a quote or speak with our team about UL-142 and F921 tank solutions.
