The cover requires space at the front of the bed (near the cab) to retract. Just as a canister style cover opens into-the-bed, so does the Peragon retractable bed cover. The main difference is that the Peragon cover doesn't have a permanent canister installed that can be damaged if your load shifts while in motion. Furthermore, our open design means that you don't have to worry about ice or debris building up inside of a canister and preventing operation.
If a load shift occurs with a Peragon cover installed, it would not damage anything, but you would need to move it out of the area of operation before folding the cover. Although inconvenient, no harm is done.
The solution for both scenarios is to use an adjustable cargo bar to manage loads like shown below.
The below video illustrates how the cover opens into the bed of the truck, preserving rear visibility.