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Quantity
1
Enjoy more storage space and peace of mind with our heavy-duty, lockable Rear Storage Box. It’s large enough to add six cubic feet of storage but compact enough to leave room for other gear on our Rear Door Platforms.
This heavy-duty storag...
Reviews
4.9
27 ratings
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Great product, install was a breeze
Great product. Opens up more storage opportunity for my van and the installation was a breeze. The box is solid! I purchased with the small storage box as well (top).
S
Sawyer · May 15, 2026
Van Storage Boxes and Door Rack
We chose Flatline products because they top of the line. We have found the installation is very straight forward and the parts fit together very well.
We are looking forward to using the Flatline storage boxes to hold most of our gear on our Dodge ProMaster van on our trip thru the southwest and the up length of the Pacific Coast Highway this summer.
J
James · April 20, 2026
Back Big Box?
Box arrived quickly, very well protected by packaging with no damage. Installed carefully and quickly with a buddy helping hold and align to mounting holes. The install video guy says " locktite" was included in hardware kit. Not in mine.