Artistic Pavers® Steplock® GLPSGB48 4" x 8" Granitelock® Paver Sterling Gray 1-5/8" Thickness is an excellent alternative to natural granite and has the same beauty of the natural stone in a very durable and strong paver. Steplock® Granitelock® pavers are designed for pedestrian applications including patios, swimming pool decks, lanais, walkways and more. Steplock® pavers and coping are also excellent for architectural and decorative uses, including raised walls, pool coping, steps, spillways, fountains, planters and benches.