When you're using shelf positioning, the best locations for an adult are: The bottom two shelves The top shelf Right in the middle at eye level Right below eye level

When using shelf positioning, the best locations for an adult are:1. The top shelf: This is typically the most accessible for adults and allows for easy reach without bending or stretching.2. Right in the middle at eye level: This is also a good option as it is at a comfortable height for most adults and allows for easy access to items.3. Right below eye level: This is another good option as it is at a comfortable height for most adults and allows for easy access to items.The bottom two shelves are generally not the best options for adults as they can be difficult to reach and may require bending or stretching.