Patterson Companies Inc. typically prefers not to ship to P.O. boxes. This is primarily due to the need for secure delivery and the availability of certain shipping carriers that may not support P.O. box deliveries. Customers may find it more reliable and efficient to provide a physical street address for their shipments. This helps ensure timely and accurate delivery of products and services offered by Patterson. For specific shipping policies or any updates regarding delivery options, it is always a good idea to check the current web page of Patterson Companies Inc., where they provide detailed information about shipping procedures and practices. This can help customers get the most accurate and up-to-date information tailored to their needs.