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Underbody Boxes from North Carolina's Smith Farm Trailer Sales are available to fill any space requirement. These all aluminum boxes are made in America and built for long-term rugged use and optimum security. Smith Farm offers custom length, width and height to meet any need for underbody boxes.


Superior Aluminum Underbody Boxes

Details & Options:

  • Fill any space requirement needed
  • Strength to handle all types of rugged use
  • Stainless steel recessed latches provide optimum security
  • Machine chains suspend the door when open
  • Door swing (to the side) for no extra cost
  • Use in single or multiple applications
  • Sizes listed are also available in a top opening lid
  • Factory mounting brackets are available in steel or aluminum

Standard Features:

  • .100 aircraft grade treadbrite aluminum (.125 smooth available same cost).
  • Interlocking with rubber gasket.
  • Drop down doors with chain hangers.
  • Continuous aluminum hinges. Strap hinge on special applications.
  • Key lock recessed stainless steel T-handle latches, two latches on 4' boxes and larger.
Model # Size
Height x Depth x Length
UB2412 12" x 12" x 24" 18 UPS
UB2416 16" x 16" x 24" 24 UPS
UB2418 18" x 18" x 24" 28 UPS
UB3018 18" x 18" x 30" 34 UPS
UB2424 24" x 24" x 24" 4O UPS
UB3612 12" x 12" x 36" 24 UPS
UB3616 16" x 16" x 36" 36 UPS
UB3618 18" x 18" x 36" 4O UPS
UB3624 24" x 24" x 36" 55
UB4812 12" x 12" x 48" 3O UPS
UB4816 16"x 16"x 48" 4O UPS
UB4818 18"x 18"x 48" 52 UPS
UB4824 24" x 24" x 48" 65
UB6024 24" x 24" x 60" 80

Any Custom Length, Width & Height Available

Product Brochure

Click here to download an Underbody Box brochure, in PDF format.

Find the Underbody Box that matches your specific needs at Smith Farm Trailer Sales. Please feel free to give us a call at 336.475.1279 or click here to email us.

Explore our current inventory of items that are ready for pick up at our convenient location in Randolph County, North Carolina.



2205 Finch Farm Road • Trinity, NC 27370

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