Monument Gate Strong and stately, Monument Gate captures the look of hand-cut stone with bold shapes and rich texture. Its classic design brings lasting character to any space. Winter Valley 20.25 sqft per Box Smallest Size: 8” x 12” Medium Size: 8” x 16” Largest Size: 8” x 20” Min/Max variable thickness: 1/4” to 1 1/2” Approx. 2 lbs per sqft Non-rated and Fire rated option