Q: What information should I bring with me to Jimstone Co.? A: You should bring dimensions, linear footage, square footage, and general application ideas pertinent to the project you are inquiring about. We can give you a good idea as to the amount of stone needed if you bring the proper information. Q: What is flagstone? A: Flagstone is not a particular type of stone per se. It simply means that the stone is quarried in slabs or flat sheets. Sandstone can be a type of flagstone, as well as limestone and granite.