The Best Lifetime Investment Truck Tool Box

If you’ve got loose tools and other gear rattling around in your work truck, then you know you’ve got problems. First, you can never find what you need without good tool storage. You waste time at every work site searching for what you need. You might have even wasted money buying a tool you already have because the original is in your truck somewhere, and you couldn’t find it when you needed it. 

Secondly, loose tools bumping freely around your truck bed can easily be damaged. Sure, your hammer will likely come through unscathed, but your power drill might not be so lucky. Additionally, while the hammer certainly survives, it’s probably leaving its mark on your truck bed in the form of scratches and dents. 

The bottom line: loose tools in your truck bed aren’t good for you, the tools, or your truck. 

The answer is a work truck toolbox, and CTA’s Underbody Carbon Steel Toolbox is the best underbody tool box you can buy. We recognize this is a bold claim, but we stand by it because the CTA toolbox outperforms the competition at every turn. Our underbody steel toolbox is the last toolbox you’ll ever need to buy. We guarantee it. 

 Here’s why: 

Underbody Mounting

The biggest drawback of most truck tool boxes is that they encroach on the already limited space in your truck bed. Our underbody toolbox adds storage in a space you’re not using for anything else.  

Underbody boxes are mounted beneath the bed of your truck between the front wheel and the cabin or at the rear between the back wheel and the bumper. You get the safe, secure, organized storage space you need without affecting anything else you need to haul in your truck. Underbody boxes solve a problem without creating a new one. 

Textured Black Powder Coat Finish 

CTA puts a textured black powder coat finish on the carbon steel underbody toolbox that protects against scratches and smudges. It also protects against rust and corrosion. In contrast, the industry standard is a wax-based glossy black finish that looks amazing out of the box.  

The glossy finish will keep the rust away but it’s highly susceptible to scratches and smudges. That glossy black looks great on day one but quickly loses its luster; our textured finish looks great today, tomorrow, next year, and every year after. 

12-Gauge Steel 

Gauge measures thickness; the higher the number, the thinner the steel. Most underbody toolboxes are made from 14-gauge steel. At CTA, we make our carbon steel underbody toolbox from 12-gauge steel.  

This gauge is thicker and stronger than 14-gauge. As a result, you’re getting the best underbody tool box that’s more durable than others made from thinner steel.  

Stainless Steel Hinges 

Stainless steel piano hinges, versus traditional mild steel, never seize and never require greasing or other maintenance. They open smoothly and easily every time. Thanks to their stainless steel build, they can take on severe weather conditions and regular use.   

This ensures your toolbox stays functional and secure for years on end. Each part of the best underbody tool box should be designed to last. 

Compression Latch 

Our truck tool box features a die-cast, heavy-duty, T-handle compression latch. It also comes with built-in locking cylinders, steel latch protection, key locking, and a padlock option. This latch is a true compression latch, which means the door is pulled flush to the box. It creates a tight, impenetrable seal is created against the gasket when the box is closed and latched.  

 A standard, non-compression latch like those found on other boxes leaves the door a bit wiggly, and a wiggly door makes it easy for dust and water to get in. 

One-Piece Gasket 

CTA uses a one-piece, automotive-grade gasket that goes all the way around the door on all four sides with no joins. A one-piece gasket is less likely to develop leaks or tears because of this. In comparison, our competition’s boxes have a three-sided gasket with a separate piece along the hinge with glue, and therefore vulnerable, joins at the corners.  

CTA designed the best truck tool box that keeps out water, dust, and other elements. It protects tools and equipment from rust and damage caused by moisture or dirt. 

Superior Water Protection 

No one can control the weather or external elements, which is why water protection is important for the best underbody tool box. In addition to the compression latch and one-piece gasket, our box also has a rain gutter around the door frame which directs water around and off the box. We take protecting your tools from water damage seriously and we’ve added multiple layers of protection to keep your gear safe and dry. 


The interior of our box features precision robotic welds and lipped steel at the edges for reinforcement. Our underbody truck tool box also has drain holes in the bottom that you can unplug for leaks inside the box and adjustable steel chains – not cables – that let you set the drop-down door exactly where you want it. And our box is fully designed and built in the USA.  


If you’re not already convinced of the superiority of the CTA carbon steel underbody toolbox, then the fact that it comes with a 10-year warranty should clearly tip the scales. The next best box has a 1-year warranty.  

The Best Tool box. Period. 

The CTA carbon steel underbody toolbox is the best underbody tool box on the market today, bar none. There are many boxes on the market like truck tool boxes from Kobalt, but  none can touch the quality and durability of this exceptional work truck toolbox.  

Our tool box is durable because it’s made from 12-gauge carbon steel.  It features a stainless steel hooked-on hinge, a one-piece gasket, a die-cast heavy-duty adjustable compression T-Handle latch, and a textured black powder coat.  

This is the best underbody truck tool box because it is impermeable, durable, and aesthetically superior to any other option. It’s available in a range of sizes, and our experts crafted it with your convenience in mind. It has a single or double latch, so your valuable items are stored safely and securely under your truck bed. It doesn’t take up useful space in your truck bed and it doesn’t need to be attached to your bed rail. 

 All toolboxes from Chandler Truck Accessories are built to meet the highest standards. Are you ready to install tool storage that you never need to think about again? Then you’re ready for a toolbox from CTA. 

We’re here to help you get the best under body truck tool box, so give a team member a call today to discuss the details. Don’t wait; better storage is a phone call away.