The best heavy-duty hard tonneau covers built in the USA that are the ultimate in locking and sealing your truck bed. Shop now from the official store.

DiamondBack covers are the toughest, strongest, most reliable truck bed covers ever built and come in a variety of configurations. Shop now.

DiamondBack HD is a hard locking tonneau made of aluminum. It's a rugged, heavy duty truck bed cover that seals and secures your bed. Shop now.

For those looking to go the extra mile in protecting their truck bed, the Tailgate Seal offers added peace of mind. Designed to help guard against dust and water, it’s a smart addition for many truck owners. Patented Taper Seal® technology; Automotive-grade EPDM rubber; Effortless installation

DiamondBack 180 is a locking butterfly door tonneau cover with two near full-length, side opening panels that seal and secure the bed of your truck. Shop now. X

We build the toughest truck bed covers on the market and we stand behind them. DiamondBack products come with a limited lifetime warranty which covers both the manufacture and parts of the cover. Learn more

The brains behind the brawn. A patented design provides the platform for a new way of hauling using heavy duty truck bed covers. Learn more.

The best heavy-duty hard tonneau covers for the Ram 1500 that are built in the USA and are the ultimate in locking and sealing your Ram’s bed. Shop now from the official store.

Proudly crafted in Pennsylvania, we construct our truck bed covers and accessories using metal, hardware, and welding supplies that all come from American suppliers.

Bed length is the distance between the inside of your tailgate and the bulkhead. Does Your Bed Have an In-bed Track? An in-bed track requires special cap clamps for installation.