Wallstone is generally 1-8 inches thick, 5-16 inches wide (also known as the face), irregular in shape, and semi-smooth on the top and bottom.
This material is available in thin (1 – 3″), regular (2 – 4″ and 4 – 6″), and heavy (6 – 8″). This makes for easier stacking. Wallstone is primarily used to build walls.