Truncated Domes Cast-In-Place Replaceable Tiles - 2' x 5' American Made Access Tiles are Distributed Nationally by Truncated Domes Depot with Every Order Getting Free Ground Shipping. Expedited air shipping is not available. Product ships from New York warehouse, typically in 1-4 business days. 2' x 5' Size - Cast in Place ADA Compliant Truncated Domes - Wet Set in Cement Measures 2.35" center to center and the in-line dome spacing meets federal and state requirements 0.9" base and 0.45" top diameter truncated dome size and spacing The perimeter of the tile is made to meet ADA requirements for surface height transition in order to eliminates trip hazards When tiles are adjoined, dome spacing remains consistent either side-by-side or end-to-end Smooth transition for rolling items such as strollers, wheelchairs, and walkers is facilitated by wide in-line dome configuration Provides exceptional, anti-slip, diamond grip™ properties with micro texture design With over 20 years of professional manufacturing and design engineering going into the production of these truncated domes it's no surprise how easy and fast it is to install and replace this product. The unique two-part design allows for quick and easy replacement of damaged or worn out domes making this a permanent solution for your new construction project.