








Jeep JLU M.A.S.S. Cargo Shelf - Adjustable Height
Your Jeep JL has plenty of capability – but not always plenty of space. Our MASS Cargo Shelf changes that.
Built from lightweight but strong 5052 aluminum, this shelf bolts into your JL to create a second level of storage in the cargo area. Whether you’re hauling camping gear, recovery tools, or the week’s groceries, the MASS Cargo Shelf keeps it all organized and off the floor, while still leaving room underneath for coolers, bins, and the bulky stuff.
It’s not just storage – it’s part of our MASS (Modular Adaptable Storage System) line, meaning you can mount other accessories right to it. From overlanding to weekend errands, this shelf makes your JL a smarter, more capable machine.
Key Features:
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Maximize Your Cargo Space – Adds a second tier for smarter packing.
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JLU-Specific Fit – Designed exclusively for the Jeep JLU Wrangler.
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5052 Aluminum Construction – Lightweight, strong, and corrosion-resistant.
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MASS Compatible – Mount MOLLE panels, trays, and more for ultimate customization.
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Made in the USA – Designed, built, and tested in St. George, Utah.
If you’re tired of gear piles in your JL, this is your answer. Pack more. Pack smarter.
JL-1576-00
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Pickup available at Warehouse
Usually ready in 2-4 days. Call to confirm.Pairs well with
Instructions
*Product photos may contain optional components.

Jeep JLU M.A.S.S. Cargo Shelf - Adjustable Height

Soft Top Fitment
This was designed for the JLU hard top, but will work well with the soft top. Here are some photos of it installed in our JLU with the soft top. There are also some details about fitment.

Multiple Materials
We combine three different materials to provide ultimate strength and still keep it as light weight as possible.
- 1/8″ steel for the vertical supports that attach to the roll bar for superior strength and lateral stability.
- 1/8″ steel for the side spreaders. This ensures that the platform parts are able to strong over the entire span of the shelf.
- 1/8″ aluminum for the platform parts. This is where we can save some weight. Due to the mounting method, we are able to reduce the weight of the largest components in the rack.
- 1/8″ steel for the vertical, under-platform supports. Here’s where we got fancy. The vertical steel supports bolt in and provide a huge amount of vertical strength.
- 1/8″ steel for the edge guards to provide maximum strength for securing cargo.

Technical Specs
- Width (left to right): 42″ (1067mm)
- Depth (front to rear): 22-1/4″ (656mm)
- Lowest Height (bottom of shelf) (from floor*): 18″ (~457mm )
- Maximum Height (bottom of shelf) (from floor*): 22″ (~559mm)
- Shelf Weight: 30 lbs (seriously)
*Heights are from the top of the MASS Platform.
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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FAQs
Please read our FAQs page to find out more.
Where are your products made?
All American Adventure Lab products are proudly designed, tested, and manufactured in-house in St. George, Utah, using high-quality materials and precision processes. We are committed to American manufacturing and craftsmanship.
Do you offer installation instructions?
Yes! Most of our products include detailed install instructions. Check the "Instructions" section below the product details above. If we have a digital version of the instructions, they will be included there. You will also receive a printed sheet with your order that details how to ask questions or receive installation assistance.
Can I return or exchange an item?
We stand by our products. If something doesn’t work out, reach out to us within 30 days of delivery. Full return and exchange policy is available here.