18x18x48 Underbody Toolbox - Heavy Duty Aluminum

Maximize storage on your flatbed, trailer, or work truck without weighing down your chassis with our commercial grade underbody toolbox. Our 18x18x48 underbody toolbox delivers 9 cubic feet of secure storage in a lightweight, corrosion-resistant package. Built from extra-thick 0.125" aluminum, this box is engineered to withstand road grime, salt, and heavy commercial use while keeping your gear dry and accessible.

Whether you're outfitting a flatbed, semi-truck, or dump trailer, our design mounts easily to your chassis to add functionality to your unused space.

Key Features

• HD Aluminum Construction: Built from 0.125" (1/8-inch) thick aluminum for superior strength to weight ratio (double the industry standard)
  
• Weather Ready Finish: Premium matte black powder coat offers extra protection again corrosion and road debris.
• Vibration Resistant Hinges: Features four-piece stainless steel huck-bolted hinges that won't rattle loose over time.
• 90 Degree Dropdown Door: Store and access your equipment easier with a full dropdown door opening 90 degrees.
• Premium Door Cables: marine-grade, vinyl coated steel cables that resist road salt and corrosion.
• Weather-Sealed: Automotive-grade one piece gasket keeps water and dust out of your tools.
• Secure Locking: 2x Die-cast heavy duty T-Handle latches (adjustable with key lock) for maximum security.
• Precision Built: Robotically welded seams ensure structural consistency and durability.

Specifications

Height	18"
Depth	18"
Length	48"
Material	0.125" Aluminum
Storage Capacity	9 Cubic Feet