Natural flagstone is a popular choice is pool coping, decoration, or for the pool deck. Flagstone is a sedimentary rock, which means it is softer and more porous than a hard rock. The porous nature of flagstone gives it a natural non-slip surface and allows moisture to quickly evaporate. These features makes flagstone ideal for pool decking material. Flagstone is often used for pool decking because of its low maintenance and long lifespan. Flagstone can be cut into tiles, or allowed to remain in a more natural state of large slabs. There is true artistry in creating a beautiful flagstone pool deck and the finished product is a breathtaking masterpiece of which you will be very proud.