Hanover's Permeable Paver, the Permeable 3 1/4” x 18”, meets standards set forth by the Americans with Disabilities Act (ADA). With a 1/16” bevel, the Permeable 3 1/4” x 18” is produced with a 4” thickness. Minimal openings provide a comfortable walking surface while allowing for water percolation. The Permeable 3 1/4” x 18” can accommodate wheel chair traffic making it the perfect choice for high foot traffic areas such as walkways, plazas and entrance ways. Suggested for pedestrian use only, the 3 1/4” x 18” is available in Hanover's full range of colors creating endless design options.