[header] How to install flagstone [title] Plan your project. [step] To decide how much stone to buy, you'll need to calculate the square footage of the area you plan to cover. You'll also need to make sure your project is safe and legal before you expend your time, energy, and money on it. 
[substeps] Start by consulting local building codes to make sure your planned project doesn't violate the law. This information should be available on your city government's website.