Side Open Semi Box
Designed to last a million miles
Other HPI Semi Boxes: Semi Step Box | Side Open Semi Box | Drop Door Semi Box | Double Door Semi Box | Custom Semi Box
Semi Boxes Semi Step Box \ Side Open Semi Box \ Drop Door Semi Box \ Double Door Semi Box \ Custom Semi Box
Side Open Semi Box
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
Starting at $774
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
It’s all about the structure
Doors that never fail
Premium Materials
Choose from different finishes
Versatile use boxes
Built to Last Forever
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
WHY AN HPI™ Side Open Semi Box
It’s all about the structure
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
Doors that never fail
¼” SS Hinges w/ 3/8” knuckle secured by Torx Screws. SS T-Handles with 3/8 locking rods.
Premium Materials
1/8” 5052 Aluminum – Marine Grade Aluminum
Choose from different finishes
Upgrade from Smooth Aluminum to Polished Stainless Steel Doors, or even Powdercoat your boxes for a unique look
Versatile use boxes
Perfect to mount under bodies, or use for a variety of applications (show flat bed and other weird location for box)
Built to Last Forever
Everything build at Highway Products gets our Lifetime Guarantee
GALLERY
SPECS
FINISH
INSTALL
F.A.Q.