Roll up tonneau cover for GMC 2500HD Short Bed

Can’t comment on the roll-ups your interested in, but want to suggest an alternative. I’ve had a 3-fold TonnoPro on my 2013 Silverado SB for 8 years and love it. It was less expensive than most. The soft vinyl cover holds up well (3-4yrs of snow in MN winters). I flip fold it to the front when running with the 5er. It doesn’t require any additional rails or hardware that impinges on the bed opening. Give it a look.