Now that the shop is complete, I have a few roll around items, like tool box, lawnmower, dolleys etc and I do not want to have to lift them over the sliding door runner. At the time all the doors were installed I chose not to have them buried in the cement as if something happens to them you have to dig them out and even if flush with the cement rolling stuff over plastic will crack anyway. With that said I had the guy down the street fab up a SST ramp that covers it and eliminates any damage going in and out. This is removable and only needs to be there when moving something in and out.