When you are trying to determine how many GenStone panels and accessories you need, there are two ways to go about it. One way is to start by measuring the total linear feet in your improvement area. A linear foot is simply a measurement of how many feet make up the area horizontally. The other way is to determine how many square feet your area is composed of and divide that number by the coverage area of the stacked stone or brick veneer panel. We typically recommend using the linear foot method because you will need the linear feet measurement to figure out how many ledgers and trim you may want to incorporate into the project. Check out GenStone's How To Measure Guide for more information and helpful tips.