I am installing a rock paver walkway in my backyard. It won't be walked on frequently except by my dog. Approximate dimensions will be 9 x 4 feet. A base of about 4 inches of sand will be needed based on the size of the rocks I'm using.
Do I need a crushed rock base under the sand? I'm trying to do this as inexpensively as I can, because I'm only renting the house. I live in South East Pennsylvania if it matters.