People call me all the time already halfway into a gravel project, standing in the driveway with a tape measure, trying to figure out how much to order. It's the single most common question I get before a job. Order too little and you're paying a second delivery fee while the truck loops back around. Order too much and there's a pile of crusher run sitting in the yard for a month, in everybody's way. So here's how I actually run the math on a Durham driveway, step by step, so