What size nest box do you need for a Flemish giant?

For a Flemish Giant rabbit, a nest box should ideally be around 24 inches long, 18 inches wide, and 12 inches high. It should be spacious enough to allow the rabbit to move comfortably while also providing a secure and private space for nesting. Ensure the box has a solid floor and is made from safe, non-toxic materials to promote a healthy environment. Additionally, consider adding soft bedding to make it cozy for the rabbit.