Yes, you can use hardwood, but it's essential to apply a water-resistant sealant to protect it from moisture. Additionally, you should make sure to use hardwood flooring that is suitable for humid environments. You should also avoid using excessive water when cleaning the floor, as this will increase the risk of damage. Regularly cleaning and sealing the hardwood floor will help ensure its longevity. => Read More: 7 Wood Options for Solid Kitchen Cabinets