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Semi and Flatbed Underbody Truck Tool Boxes                      The toughest underbody and tarp tool boxes on the highway As seen at The International Trucking show, Las Vegas Convention Center, Heavy Duty Trucking, Trailer Body Builder, Equipment World, Concrete Contractor, Light Truck & SUV, Fleet Equipment, Trucker's Connection, Through the Gears, My Little Salesman, and Fleet Owner magazines.   Highway Products Inc., established in 1980, built its reputation on manufacturing the toughest semi truck and trailer underbody tool boxes on the highway. This unique line of tool boxes features no-sag doors and is constructed of the thickest grade of aluminum stock utilized in the industry: 1/8" marine grade aluminum.   Highway Products A name you can trust

Pulling out the stops

Does it look like you could build a house on top of it?

Underbody tool boxes are often overlooked when ordering trucks and trailers. They all have similar looks on the outside and seem very simple.  But wait!  Let's take a look at the inside.

Look at the metal thickness - if it's not 1/8th inch thick, it won't last long. Road conditions are just too tough. Look at the hinge. Does it look oversized? If it doesn't, it's not tough enough. Are they stainless steel? This could be the weakest point of the tool box. How about the way the hinge is fastened. Rivets often work loose after time. How about the inside construction of the tool box. Does it look like you could build a house on top of it? If you are putting heavy or awkward items in the tool box, do the doors open to the sides? If not you will be leaning over the drop door to load and unload which is not a back saving feature.

Want some extra "slam on the brakes" looks for your truck or trailer?

You could be using your tool boxes every day to access your tarps, chains, straps, tools, and other equipment. So, you need to take a second look at the tool boxes before you buy. There can be a lot of difference and for the same price or maybe a few dollars more you will save money, your back, and time in the long haul because you won't have to deal with cheap locks or construction on a rainy winter night. How many times have you seen tool box doors being held shut with bunji cords or flapping open in the wind. This in not what you want to see on your truck.

Highway Products underbody truck tool boxes have internal design features that make them extra tough: 1) the larger semi truck tool boxes have both a 1/8" "C" channel stiffener bar welded in the bottom front corners and fully-welded top-to-bottom inside vertical posts. (features ruled out by other manufacturers due to the extra expense); 2) An oversized continuous style, stainless steel piano hinge, with a 1/4" pin attached with unshakable, 1/4 inch stainless Torx™ screws (not rivets) assures long term performance. Torx screws also allow you to replace a damaged tool box door without special tools and expense; 3) The same Heavy-duty "T-handle" stainless steel locks and mechanisms we have been using for 30 years keep your valuables secure. A five year warranty locks the deal. Others have one year or nothing.

Double-door, side-open underbody truck tool box

Single door, drop-open underbody truck  tool box

Now, let's take a look at the inside.

Doors that will never sag and don't need bunji cords to keep them closed.

The doors of our double-door, side open underbody tool boxes close into the frame of the box. The frame style underbody tool box keep the doors protected from road debris and even bottoming or in a high center situation.

We have seen many times where the trailer has been high-centered on railroad tracks, dragging the underbody tool boxes, and actually lifting the trailer off the ground while dragging. Afterwards, only minimal damage to the bottom of the Highway Products underbody tool boxes. The doors still worked fine. We've seen where the trailer was dropped, fully loaded, without the landing gear down. The boxes took the full force. Minimal damage to the underbody tool boxes and the doors still worked fine.

We have customers that have been transferring Highway Products tool boxes from their old trucks and trailers to their new ones for over 20 years, because they last. This means millions of miles! They are truly the toughest tool boxes on the market.

Remember, you will be using these boxes for a long time. Get good ones!

Our full faced underbody tool boxes are equipped with an internal rain gutter. This makes for a very water tight underbody tool box. Highway Products developed this style of internal rain gutter in the early 80's and since has been copied by most other manufactures because of it's ease of manufacturing . We use this style of underbody tool box where it performs best for the situation. Still a great tool box.

Sturdy mounting systems

To properly support underbody tool boxes and their contents, we always recommend mounting them in a cradle type of mounting system that does not allow side-shifting. We call side-shifting the travel the tool box moves when stopping and starting. This undesirable travel tries to tweak the tool box which works hardest on the corners. In fact, our experience shows most of the problems with underbody tool boxes are due to an inadequate mounting system.

Because of cost and circumstances it is often more desirable to mount from the sides of the tool box. So we offer two mounting systems: Please visit our mounting bracket page.

Want something special? Ask for mirror finish Stainless Steel doors. (Seen on top picture)

Avoid problems down the road, add looks, demand that your dealer install only Highway Products tool boxes for your truck or trailer. After all, you will be the one using them. If they are not a dealer for Highway Products, no problem. We can set them up instantly. (we get a lot of new dealers from our customers demanding our products.)

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Call 1 800 TOOLBOX
(1 800 866 5269)