RigidCore™ Technology: High-Strength, Foam-Filled Lid

Our RigidCore™ foam-filled lid is the backbone of every UWS tool box. Instead of relying on patchwork reinforcements like rod braces, styrofoam, or partially supported lids, we reinforce the entire lid with a solid foam core engineered for consistent strength and rigidity across its full span.

That full-coverage support helps the lid hold its shape through hard work, rough roads, and daily use. The lid stays straight, shuts clean, and locks the way it should. No binding. No misalignment. RigidCore™ is built for real work, delivering long-term durability you can count on every time you reach for your tools.

Exclusive Design for Exceptional Strength

RigidCore™ is a patented technology built into the lid of UWS tool boxes. The lid is completely filled with a hardening, expanding foam material, sandwiched between two aluminum plates. As it hardens, the foam and the plates together create a solid structure.

Hidden from view, RigidCore™ technology greatly enhances the strength of the lid, far beyond that of a traditional tool box.

The foam-filled lid greatly enhances tool box strength and overall structural integrity. It also helps prevent bending and warping of the box and lid even under heavy use.

Because of its rigidity, the lid is highly resistant to binding, allowing the gas struts to operate fluidly and ensuring smooth opening and closing of the box.

The foam-filled lid is completely integrated with the tool box and is undetectable from the outside, maintaining a streamlined look on your truck.

Welded, Extra-thick Aluminum

UWS tool boxes and storage chests are also constructed with extra-thick aluminum. While other boxes typically use aluminum about 0.045” to 0.050” thick, we use 0.058” diamond-plate aluminum to construct our boxes.

The aluminum is precisely welded into a one-piece tub design, increasing the box’s strength and maximizing its water-resistance.

Proudly Designed, Fabricated, and Welded in Florida 

RigidCore™ technology is applied to each of our truck tool boxes at our manufacturing facility in Perry, Florida. We design, fabricate, and weld our truck tool boxes in the United States because we believe in the value that American manufacturing brings and the quality that it guarantees.