Cargo Popper
The Alum-Line Cargo Popper is a lightweight, all-aluminum, and universal slide-in cargo box designed to fit in the bed of a pickup truck. This model is built specifically for transporting general cargo, tools, or equipment—offering a secure, weather-resistant alternative to traditional truck toppers. It features durable construction, easy access through rear doors, and is ideal for users who need a removable and versatile hauling solution. Universal to all makes of trucks. Customizing the size to fit your needs is easy to do.
Lightweight Strength That Outperforms Steel
High-strength aluminum delivers durability without unnecessary weight.
Proudly Made in the USA Since 1986
American-built trailers and work products trusted nationwide.
Designed for Commercial & Recreational Use
Built to handle demanding jobs, daily hauling, and custom applications.
Standard Features
Standard features engineered for strength, longevity, and everyday reliability.
- (1) piece aluminum roof with heavy-duty roof rail
- Heavy-duty extruded sides ((1) 5" air space on all (4) sides)
- Double rear doors with latch arm
- Extruded front panels with viewing space
- Inside height 41"
- Width 46"
- Air spaces will accommodate slide-in Lexan or hinged panels
- Standard 8' unit weighs 300 lbs
- Models available to fit any make of pickup and any length of box
- Includes grab handles on each side (Note: use grab handle to secure Popper to inside of pick-up box)
Optional Features
Optional enhancements designed to tailor your build for specific jobs, loads, and real-world use cases.
- Hinged aluminum cover panels (per ft.)
- Lexan enclosures for air space (per ft.)
- Height each 6" (per ft. of popper length) (Add/Subtract)
- Luggage rack on top (per foot) includes crossbars
- Center divider gate
- (2) way roof scoops
- Vinyl lettering available
- 6' (3) piece portable ramp (20"W x 26" sides)
- Ramp only
- Solid diamond plate floor
- Quick connect trailer light
- Dome lights
- Marker lights
- American Flag Decal
Popular Sizes
See Our Products in Action
Get a closer look at the design, construction, and real-world performance behind every Alum-Line build.
Decades of experience, trusted by thousands—precision, strength, and reliability in every build.
American-built aluminum products designed for real-world work, backed by three core principles for every product delivered
Built on 40 Years of Proven Craftsmanship
Since 1986, Alum-Line has produced premium all-aluminum trailers, truck beds, bodies, boxes, and specialty transport solutions for customers across the U.S. Our decades of experience shape every weld, panel, and design we build.
USa Manufacturing Power That Sets Us Apart
With over 120,000 sq. ft. of production space, dedicated plants, and continuous expansion, Alum-Line delivers the strength, precision, and consistency needed for commercial-grade performance in every product.
Nationwide Network Backed for years
Supported by 200+ dealers across the country and protected by a five-year workmanship warranty, our aluminum solutions are engineered to outperform steel and built to last a lifetime.
Trailers Built For Hard Work Across America.
With years of hands-on experience and a commitment to quality craftsmanship, we turn raw materials into real-world solutions — from custom industrial parts to full-scale fabrication projects.
Years in Business
120,000 Sqft Manufacturing Facilities
Dealers Across the USA
Where Workmanship Lasts a Lifetime.
Specials
Limited-run pricing on select aluminum builds—grab deals before they’re gone.
New Products
Newly engineered additions built for tougher jobs and higher performance.
Reviews
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Warranty
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