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Side Open Semi Box

Side Open Semi Box

Designed to last a million miles

Side Open Semi Box

Lifetime Warranty

Designed to last a million miles

  • Lifetime Warranty since 1980 = over-engineered and overbuilt
  • American Made by skilled tradesmen
  • Built with only premium materials and components
  • Sealed for protection from thieves and weather
  • Multiple finish options
  • Lifetime Warranty – Retire your truck but keep the box
Lifetime Warranty

Underbody tool boxes are often overlooked when ordering trucks and trailers. They all have similar looks on the outside and seem very simple. Take another look before you order. Look at the metal thickness: if it’s not an 1/8-inch thick, it just won’t last! Road conditions are too tough. Look at the hinge. Does it look oversized? If not, it’s not tough enough. Are the hinges stainless steel? How about the way the hinge is fastened? Rivets work loose after time. This could be the weakest point of the tool box.

WHY AN HPI™ Side Open Semi Box

Angle braces, Corner Gussets, Bottom Face Stiffeners.  Highway Products Boxes are completely reinforced to prevent the torsional forces that causes welds to crack and boxes to fail.   The Structure is the secret to our Million Mile Boxes

WHY AN HPI™ Side Open Semi Box

Angle braces, Corner Gussets, Bottom Face Stiffeners.  Highway Products Boxes are completely reinforced to prevent the torsional forces that causes welds to crack and boxes to fail.   The Structure is the secret to our Million Mile Boxes

¼” SS Hinges w/ 3/8” knuckle secured by Torx Screws.  SS T-Handles with 3/8 locking rods.

1/8” 5052 Aluminum – Marine Grade Aluminum

Upgrade from Smooth Aluminum to Polished Stainless Steel Doors, or even Powdercoat your boxes for a unique look

Perfect to mount under bodies, or use for a variety of applications (show flat bed and other weird location for box)

Everything build at Highway Products gets our Lifetime Guarantee

Checkout some photos and videos of Side Open Semi Box.