We often have garage sales on weekends, so we packed many our used items in cardboard boxes but we dont want the people drive up to our garage door for picking up the heavy boxes because with a very steep driveway and an occupied garage , only small cars can come up safely.


So we put the boxes into a plastic storage container, and slide the container down to the ground level for the neighbors to pick up and load onto their cars.
But the driveway is made of aggregate concrete, scraping the container, therefore over time bottom of our plastic containers get worn easily. This idea works well! saving us the effort of carrying the boxes to the ground floor. But quite likely the plastic containers couldnt last long.

We want to modify this design by placing a durable 0.5 - 1 inch thick rubber / plastic layer or mat along the driveway so we can slide the boxes, just like those conveyor belt we see in airports.


We tried weedmat but the weedmat is too thin. So there are still too much friction of the aggregate concrete gripping our boxes.
Know this is a challenge rarely seen in many forums.
Any ideas / suggestion are greatly appreciated!