Hello! this is my first post! I am about to start excavating and dry laying a natural, all color bluestone patio and I want to see what the consensus is for the dry material. I will be laying 3-4 inches of gravel and then stone dust or cement sand… I have heard stone dust is the best choice...

I am in a green building class and we are building a straw bale shed (for garden tools). I am looking to use NY Bluestone and either crushed stone or stone dust instead of a mortar mix. We will not be using a cement slab for the floor so I was wondering what the best way to do the flooring would...