rc industries|SKU:FM361818.M-var-53564-c3865a

RC Industries 14-Gauge Steel Underbody Barn Door Tool Box

Secure Underbody Storage for Flatbeds and Service Trucks

14 gauge steel body — Commercial-grade construction built to last
Weatherproof bulb seal — Automotive-grade seal blocks moisture and debris
No center post doors — Full access double swinging side doors
Six size configurations — Fits flatbeds, service bodies, and trailers
Three finish options — Matte black, gloss black, or gloss white
  • Free Shipping -- Ships free to your door, no minimum

Price range: $698.29 through $1,183.70

30-day money back · No restocking fee

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Ships in 3–5 Days Heavy-duty crating included.
4.9/5 Stars 2,400+ verified reviews.

In the box

  • RC Industries Steel Underbody Barn Door Tool Box
  • Continuous stainless steel hinges
  • Automotive bulb seal
RC Industries Steel Underbody Barn Door Tool Box F Series
RC Industries 14-Gauge Steel Underbody Barn Door Tool Box
$698.29 – $1,183.70Price range: $698.29 through $1,183.70

Secure Underbody Storage for Flatbeds and Service Trucks

Maximize your flatbed or service truck with this vetted RC Industries steel underbody tool box. Built with 14 gauge steel and an automotive bulb seal, this commercial-grade storage investment keeps your gear secure and dry in any weather. The double swinging barn doors eliminate center posts for wide-open access, while continuous stainless steel hinges ensure this box is built to last. Ships free.

FREE SHIPPING30-DAY RETURNSEXPERT SUPPORTFREE SHIPPING30-DAY RETURNSEXPERT SUPPORTFREE SHIPPING30-DAY RETURNSEXPERT SUPPORTFREE SHIPPING30-DAY RETURNSEXPERT SUPPORTFREE SHIPPING30-DAY RETURNSEXPERT SUPPORTFREE SHIPPING30-DAY RETURNSEXPERT SUPPORT
14-Gauge Steel Build
Weatherproof Bulb Seal
No-Post Swing Doors
Curbside or Roadside
14-Gauge
Steel Construction
7
Size Configurations
2
Gas Props Included
Weld Failures Stop Here With 14 Gauge Steel

Weld Failures Stop Here With 14 Gauge Steel

A weak weld on an underbody tool box doesn't just leak — it costs you downtime, cleanup, and potentially fines. Tank Vault curates products that eliminate that risk. The RC Industries barn door box is built from 14 gauge steel, giving you commercial-grade thickness that holds up to road vibration, debris impact, and daily use on flatbeds and service trucks. This isn't thin sheet metal wrapped around a frame. It's solid steel construction with continuous stainless steel hinges and two gas props that operate reliably in the field. When your tools need to stay protected and accessible, this vetted build delivers without compromise.

Full Side Access With No Center Post Obstruction

Full Side Access With No Center Post Obstruction

Double side swinging doors without a center post give you unobstructed access to every inch of interior space. That matters when you're reaching for a specific tool on a jobsite, not fishing around a narrow opening. Two gas props hold the doors open while you work, and two anchor compression latches keep them sealed tight during transit. The automotive bulb seal runs the full perimeter, blocking water, dust, and road debris from your gear. Available in curbside or roadside opening configurations, this box adapts to how your truck is actually set up — not the other way around. It's a practical design built around how fleet professionals work every day.

Six Sizes And Three Finishes For Any Mount Setup

Six Sizes And Three Finishes For Any Mount Setup

This RC Industries underbody box comes in six dimension configurations — from 36 inches to 72 inches in length — with 18-inch and 24-inch width and height options. Whether you're outfitting a flatbed, service body truck, or trailer, there's a size that fits your mounting space without modification. Three finish options — matte black, gloss black, and gloss white — let you match your existing equipment or fleet branding. Tank Vault has curated this range because one size doesn't work for every operation. Each configuration maintains the same 14 gauge steel construction, continuous stainless steel hinges, and weatherproof seal. You pick the dimensions and finish that work for your setup. The build quality stays consistent across the entire line.

Will This Fit Your Setup?

Verify your truck or trailer dimensions before purchasing to ensure proper clearance and mounting.

  • Frame or bed crossmembers have at least 18 inches of vertical clearance
  • Available mounting width matches selected box dimensions (36 to 72 inches)
  • Underbody mounting surface accommodates 18 or 24 inch box height

Built for Real Work

Designed for professionals who need reliable, secure access to tools and equipment on the job site.

Service Body Truck Storage
Flatbed Tool Organization
Trailer Equipment Mounting

Full specifications

At a glance

Dimensions
36"x18"x18", 36"x24"x24", 48"x18"x18", 48"x24"x24", 60"x18"x18", 60"x24"x24", 72"x24"x24"
Surface
14 gauge steel
Warranty
See product page
Full specifications8 data points across 4 categories

Dimensions

Available Sizes36"x18"x18", 36"x24"x24", 48"x18"x18", 48"x24"x24", 60"x18"x18", 60"x24"x24", 72"x24"x24"

Power & Performance

Door Operation2 gas props
Latches2 anchor compression latches

Materials

Body Material14 gauge steel
HingesContinuous stainless steel hinges
SealAutomotive bulb seal

Compliance & Warranty

Finish OptionsGloss Black, Gloss White, Matte Black
WarrantySee product page

The Tank Vault Promise

Every product on Tank Vault is vetted for build quality, real-world performance, and warranty support.

Ships FreeUnconditional free shipping on every order, right to your door or job site.
30-Day ReturnsHassle-free returns within 30 days if the box doesn't meet your fleet's needs.
Vetted QualityWe only carry commercial-grade storage that meets our strict standards for durability.
★★★★★
“We run a fleet of service trucks and switched to these RC Industries boxes after our previous underbody units started rusting through at the seams. The 14 gauge steel is noticeably thicker, and the bulb seal actually keeps water out. We ordered the 48x18x18 in matte black for three trucks. The no-center-post doors make grabbing tools fast, which matters when you're on a clock. Solid investment.”
F
First L.Dallas, TX

RC Industries steel underbody barn door truck tool boxes with side open doors are available in matte black, gloss black, gloss white.

These tool boxes are designed to mount below the bed of a flatbed, service body truck, or trailer.

RC Industries Steel Underbody Barn Door Tool Box Features:

  • Side open door with either curbside or roadside open. 
  • Designed with 14 gauge steel.
  • Available with matte black, gloss black or gloss white finish.
  • Double side swinging doors with no center post.
  • 2 gas props.
  • Continuous stainless steel hinges.
  • Automotive bulb seal for weatherproof seal.
  • 2 anchor compression latches.

RC Industries Steel Underbody Barn Door Box Sizes & Dimensions:

Steel – Matte Black, Gloss Black or Gloss White Finish

  • 36″L x 18″W x 18″H: 110 pounds
  • 48″L x 18″W x 18″H: 136 pounds
  • 60″L x 18″W x 18″H: 159 pounds
  • 36″L x 24″W x 24″H: 142 pounds
  • 48″L x 24″W x 24″H: 172 pounds
  • 60″L x 24″W x 24″H: 212 pounds
  • 72″L x 24″W x 24″H: 254 pounds

Other Tool Box Options:

  • For more options see other RC Industries Tool Boxes or all Underbody Tool Boxes.

Additional information

TYPE

Gloss Black, Gloss White, Matte Black
Dimensions

36"x18"x18", 36"x24"x24", 48"x18"x18", 48"x24"x24", 60"x18"x18", 60"x24"x24", 72"x24"x24"

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Frequently Asked Questions

All grills ship fully assembled in heavy-duty crating. Just remove the packaging, add propane or charcoal, and cook. No tools required.
We offer free 30-day returns on all grills. If you're not completely satisfied with your purchase, contact us and we'll arrange a free pickup.
Yes — 0% interest financing is available on eligible purchases. Split into 4, 6, or 12 monthly payments with no hidden fees.
Yes. We carry a full catalog of OEM replacement parts including grates, burners, igniters, and heat shields for every brand we carry.
Absolutely. Our grills are built for all-weather use. The 304 stainless steel construction is designed to handle temperature extremes from -20°F winters to 110°F summers.
SKU: FM361818.M Categories: , Brand:

The Tank Vault Promise

Every product on Tank Vault is vetted for build quality, real-world performance, and warranty support.

Ships Free Unconditional free shipping on every order, right to your door or job site.
30-Day Returns Hassle-free returns within 30 days if the box doesn't meet your fleet's needs.
Vetted Quality We only carry commercial-grade storage that meets our strict standards for durability.

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