Alamo Stone? Company offers a wide variety of natural stone for pool coping and exterior projects. Our standard coping is available in 1-1/4" and 2" thickness. Custom 3" up to 6" thick coping is available in some stone choices; consult with your Alamo Stone? sales representative. Enhance your next project with limestone, quartzite, and sandstone products that Alamo Stone? has to offer. Our cut stone division can cut anything to size including custom radius cutting for steps, spas and pool coping.