- Eliminates stall cavities caused by pawing - Minimizes bedding use and cost - Minimizes stall cleaning labor - Excellent comfort for your horse 8 mat minimum order for free freight to a business address. Call 1-800-335-1880 for a freight estimate on orders less than 8 stall mats. Horse Stall Mats $89.00 Horse Stall Wash Mats $140.00 CMI products toll free order and help line 1-800-335-1880. OHIO RESIDENTS will be charged Ohio Sales Tax unless we have a OHIO SALES TAX EXEMPTION FORM on file. The form is available at the link on the left side of this page.