Weather Guard Lo-Side Boxes (Side Mount Tool Boxes)

Expand your truck’s storage and keep tools within arm’s reach with Weather Guard Lo-Side Boxes, also known as side mount tool boxes. Designed for professional tradesmen and fleet operators, these boxes mount securely along the bed rails, leaving your truck bed open for hauling while providing easy access to essential tools and equipment.

Each Weather Guard Lo-Side Truck Tool Box is engineered from high-strength aluminum or steel and finished with Weather Guard’s durable Armor-Tuf® powder coat for long-lasting corrosion resistance. The tamper-resistant locking system, reinforced lid construction, and full weather seal protect your gear from theft and harsh job-site conditions. Gas-assisted shocks ensure smooth opening and closing—even when your hands are full.

Weather Guard’s Lo-Side Boxes are available in multiple lengths and finishes, including Matte Black, Gloss Black, Bright Aluminum, and White Steel, so you can match your truck’s look while enhancing its functionality. Popular models fit seamlessly on most full-size and mid-size pickups from Ford, Chevy, GMC, Ram, Toyota, and Nissan.

At Upfit Supply, we carry the full lineup of Weather Guard side mount tool boxes, making it easy to find the right configuration for your work truck. Compare sizes, finishes, and latch styles to build your perfect upfit. Whether you need a single side-mount box or a matching pair, Weather Guard Lo-Side Boxes deliver the accessibility, security, and rugged design trusted by professionals nationwide.

Upgrade your truck’s storage with Weather Guard Lo-Side Boxes—built for strength, designed for productivity.