Honister Slate Mine offers two types of crazy paving – thick and thin. Thin is between half-an-inch and an inch thick, while thick is between an inch to one-and-half inch thick. Thick is best used on driveways where you’ll be parking vehicles, while Thin is perfect for pathways. It cost £20 plus VAT per square metre for thin, and £25 plus VAT per sq metre for thick. If you want to be really precise, calculate how much you’ll need by simply measuring where you want the path to go (its length and then its width) and then multiply these two figures together to get the total square metres you’ll need to cover.