As retail theft continues to rise, having effective loss-prevention strategies in place has become critical for any business dealing with high-value merchandise.
From jewelry and luxury boutiques to cannabis dispensaries and sporting goods retailers, secure product displays are no longer optional—they’re essential.
One of the most innovative advancements in retail security is the Theft Deterrent Level (TDL) system, a standardized method for evaluating the security performance of display cases.
This unique system helps retailers better understand the protection levels offered by different case designs and make informed decisions regarding safeguarding their inventory.
What Is TDL?
Theft Deterrent Level (TDL) is a classification system that assigns a security rating to retail display cases based on their ability to deter and withstand theft attempts, including smash-and-grab attacks.
Much like UL ratings in safes or fire protection ratings for cabinets, TDL provides a measurable, transparent standard that helps retailers select the right level of security for their unique environment.
Rather than relying on generic terms like “secure” or “reinforced,” TDL ratings communicate what a case is designed to resist; this allows store owners to tailor their displays to their merchandise risk level, location, and the customer experience they want to create.
Why Theft Deterrent Levels Matter
Historically, many retailers had no way to compare the security strength of display cases accurately. Visual design and merchandising appeal often took priority over structural security, leading to significant vulnerabilities—especially in high-theft industries like jewelry, pawn, or cannabis.
The introduction of the TDL system changed that. It created a common language for security, allowing businesses to decide the level of safeguarding they want to employ.
- Owners assess their risk based on merchandise type and location
- They then choose display cases built for their actual threat environment
- Can minimize losses due to smash-and-grab or opportunistic theft
- Potentially reduce insurance costs by using certified secure fixtures
Understanding the TDL Scale
The TDL system is tiered to reflect different levels of theft resistance. Each level includes specific construction features such as advanced locking systems, reinforced framing, laminated safety glass, and anti-pry enhancements.
TDL-1: Basic Theft Deterrence
This entry-level classification provides essential security features for lower-risk retail environments. TDL-1 cases are best suited for locations with 24/7 surveillance and limited foot traffic.
Typical features may include tempered glass and simple locking hardware—enough to deter casual theft or unplanned shoplifting.
TDL-2: Moderate Theft Resistance
Cases rated at TDL-2 can withstand more deliberate attacks, such as those involving tools or blunt force. Standard upgrades at this level include laminated safety glass, hidden locking systems, and stronger joinery.
This level is ideal for businesses that display moderately valuable items in areas with a higher theft risk.
TDL-3: High Theft Deterrence
At the top of the scale, TDL-3 represents the highest level of protection currently available in commercial display case design. These cases are built for maximum security and feature multiple layers of laminated glass, steel reinforcements, anti-pry edges, and robust locking mechanisms. Some models may also include integrated alarm triggers and sensors.
TDL-3 cases have wide use in retail settings that carry extremely high-value or regulated merchandise, such as diamond jewelry, collectible firearms, or premium cannabis products.
Proven Results in Real-World Environments
Retailers using TDL-rated cases often report a significant decrease in theft incidents. These cases not only act as physical barriers but also serve as strong psychological deterrents to would-be criminals.
In some documented break-ins, TDL-3 cases withstood full-force attacks long enough for security systems or law enforcement to respond, resulting in zero loss.
Loss prevention professionals have noted that TDL-rated cases provide a measurable return on investment, particularly when theft losses can exceed thousands—or even tens of thousands—of dollars in a single incident.
Security That Doesn’t Compromise Style
One common misconception about secure display cases is that they must be bulky, unattractive, or difficult to integrate into modern retail spaces.
However, TDL-rated cases are fully customizable and can meet aesthetic goals while maintaining high levels of security.
From sleek jewelry towers and glass-topped cannabis counters to durable sporting goods cabinets, retailers can find options that look just as good as they perform.
Who Should Consider TDL-Rated Cases?
Any retailer dealing in valuable, regulated, or high-theft merchandise can use TDL-rated display cases. These cases provide business owners with peace of mind, help them meet insurance requirements, and act as a first line of defense against external threats.
Whether launching a new store or upgrading security in an existing location, investing in the appropriate Theft Deterrent Level can help protect products and profits.
Work With Jahabow Industries
As a display case expert, Jahabow is committed to providing innovative and customized solutions that meet retailers’ unique needs.
Contact us today to explore how the right TDL-rated display case can protect your inventory or to learn about our range of display case options.
Together, we can transform your store into a captivating shopping destination.