Underbody Tool Boxes

Underbody Tool Boxes

When you’re running hard miles, organization and security matter. Our underbody tool boxes provide storage under your trailer or flatbed, helping you protect tools, gear, and cargo accessories without taking up valuable deck space. Built from a high-strength aluminum alloy and crafted in the USA by trusted manufacturer Sturdy-Lite, these boxes are made to last.

Under Trailer Tool Box Options

We offer three styles of under flatbed tool boxes - each is mounted on the curb side with a bright mirror finish aluminum body that resists corrosion and cleans up easily.

They also all have reinforced corners and a limited manufacturer's warranty for your peace of mind.

Standard Double-Door Underbody Tool Box

This classic is ideal for daily use and is a favorite for haulers who need reliable access to tools and equipment while keeping the underdeck clear and tidy.

• Dual doors that open from the center for access from either side.
• A stainless steel lock rod opens just like a trailer door and delivers strong, tamper-resistant security. It can be padlocked for extra theft protection.
• Heavy-duty rubber gasket makes these toolboxes waterproof!

Flush-Door Underbody Tool Box

For a more stylish toolbox, check out our flush-door tool box.

• Features the same double-door access, custom waterproof gutter system, and stainless steel lock rod as the standard tool box.
• Has stainless steel strap hinges for added corrosion-resistance.
  

Single-Door Drop-Down Wrecker Box

Built for the flatbed wrecker industry, this under trailer wrecker tool box with a load-rated door makes lets you open the door and stand on it for quick access to your trailer.

• A single, full-width drop-down door - perfect for situations where a curb or other obstacle would prevent double swing out doors from opening.
• Load-rated door cables are quieter than chain and won't catch on your tools.
• Like all Sturdy-Lite tool boxes, it's waterproof!

Built to Withstand the Road

No matter which model you choose, all of our Sturdy-Lite underbody tool boxes are built in the USA to exacting standards:

• High-strength aluminum alloy construction for lightweight durability.
• CNC-machined and laser-cut for consistent performance.
• All welds performed by AWS-certified welders.

Why Use Under Flatbed Tool Boxes?

Mounting tool boxes under a flatbed or trailer frees up valuable cargo space and helps keep essential gear organized, protected, and within easy reach:

• Winch bars
• Winch straps
• Fifth wheel pin puller
• Extra oil and more!

Questions?

Get in touch with our team of product experts today if you need any help choosing the right under trailer tool box for your application. And don't forget the installation brackets!

Complete the rest of your trailer setup with headache racks, flatbed tarps, chains and binders, and more.