Roll-N-Lock A-Series Retractable Tonneau Cover
Our A-Series retractable tonneau cover brings secure cargo protection to your truck bed without sacrificing access. Built with interlocking aluminum slats that roll open and closed in seconds, the cover automatically locks at any position along the bed rail. You get full weatherproof sealing when closed, and you can retract the cover completely to haul oversized loads. The low-profile design sits flush with the bed rails to preserve fuel economy and maintain your truck's clean lines. Installation takes less than an hour with basic hand tools—no drilling required on most applications.
We engineered the A-Series for drivers who need quick access to cargo throughout the day but won't compromise on security when the truck is parked. The automatic locking mechanism engages every time you close the cover, and the aluminum slat construction resists prying and cutting attempts far better than vinyl or fabric alternatives.
Key specifications
Construction and materials
Every Roll-N-Lock A-Series retractable tonneau cover starts with 6063-T6 aluminum slats—the same alloy used in aircraft structural components where weight savings and corrosion resistance both matter. We apply a powder-coat finish over the aluminum to resist scratches, UV fade, and salt exposure in coastal or winter climates.
The slats interlock along their entire length, so there’s no fabric or vinyl to tear or wear through. When you close the cover, EPDM rubber gaskets run the perimeter of the bed to block water, dust, and road spray. The canister housing that stores the rolled-up slats bolts directly to the front bed wall, and the side rails mount to your existing stake pocket holes on most truck models—no drilling into the bed itself.
Locking and security features
The A-Series cover locks automatically every time you slide it closed. A keyed cylinder near the tailgate controls the locking mechanism, and you can set the cover to lock at any point along the bed—half open, three-quarters open, or fully closed. This lets you haul tall items in the front half of the bed while keeping the rear section secured.
Because the slats are solid aluminum, cutting through the cover requires power tools and makes enough noise to draw attention. The side rails bolt from underneath, so there are no exposed fasteners for a would-be thief to remove. When the cover is fully retracted into the canister, you still have access to the entire bed without removing any components.
Installation process
No-drill mounting on most applications
We designed the A-Series to use your truck’s factory stake pocket holes and bed rail clamps, so installation on most Ford, Chevy, GMC, Ram, and Toyota models requires zero drilling. You’ll mount the side rails first, bolt the canister to the front bed wall, then attach the slat assembly to the rails. The entire process takes 45 to 60 minutes with a socket set and an adjustable wrench.
For trucks with bed liners or bed rail caps already installed, you may need to adjust the clamp position slightly. The cover works with spray-in liners, drop-in liners, and most bed rail systems like the manual-latch variant that some fleets prefer for heavy-duty cycle counts. We include detailed instructions with photos for each truck model, and our technical support line can walk you through any fit questions before you start.
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Common questions about the A-Series cover
Yes, the A-Series is designed to work with both spray-in and drop-in bed liners. The side rail clamps adjust to accommodate the added thickness of a liner, and the installation instructions include specific torque specs for liner-equipped beds. If you have a bed rail cap system installed, you may need to reposition the clamps slightly to clear the cap edges, but no modifications to the liner itself are required.
For best results, install the cover after your bed liner is fully cured if you're adding a spray-in liner. Drop-in liners should remain in place during cover installation.
The A-Series cover is not designed to support standing weight or heavy cargo placed directly on the slats. The aluminum slat system is engineered to resist forced entry and weather exposure, but walking on the cover or stacking heavy items on top can bend or crack individual slats.
If you need to access your truck from above, retract the cover fully and use the open bed. For applications where you need a tonneau cover that supports weight, consider a hard folding cover or a one-piece rigid lid instead.
Yes, as long as your cargo doesn't extend above the bed rail height. The cover rolls along the top of the bed rails, so items stored below that level won't interfere with operation. If you're hauling tall items, you can lock the cover in a partially open position to protect the front or rear section of the bed while leaving the other section accessible.
Avoid forcing the cover closed over protruding cargo—this can damage the slats or bend the side rails. If an item is too tall, retract the cover fully or adjust your load position.
Clean the slats and side rails every few months with mild soap and water to remove dirt, road salt, and tree sap. Avoid abrasive cleaners or power washers, which can damage the powder coat finish. Lubricate the side rail tracks twice a year with silicone spray to keep the cover rolling smoothly.
Inspect the EPDM gasket seals annually for cracks or compression set—replace the seal kit if you notice water intrusion increasing over time. Check the canister drain tubes periodically to make sure they're not clogged with debris.
Roll-N-Lock includes a limited lifetime warranty on the aluminum slats, side rails, and canister housing against defects in materials and workmanship. The EPDM seals, drain tubes, and locking mechanism are covered for three years from the date of purchase.
The warranty covers manufacturing defects but does not cover damage from accidents, improper installation, or modifications to the cover. Keep your purchase receipt and register your cover online within 30 days of installation to activate the full warranty coverage.
Most factory bed rail tie-down systems remain accessible with the A-Series installed. The side rails mount above the bed rail surface but leave the stake pockets and tie-down cleats exposed. If you use a third-party rail system like Yakima or Thule, measure the rail height before ordering—the cover side rails need clearance to slide along the bed without hitting the accessory rail.
For flush-mount tie-downs or D-rings installed directly in the bed floor, the cover won't interfere at all since it operates above the bed rail line.
Most truck owners install the A-Series themselves in under an hour using basic hand tools. The cover ships with detailed instructions, all necessary hardware, and a drill template for models that require bed wall mounting. No welding or cutting is required on any application.
If you're not comfortable working with hand tools or if your truck has custom bed modifications, a professional installer at a truck accessory shop can typically complete the job in 30 to 45 minutes. Some dealers include free installation with purchase.