Installing solid wood flooring requires a certain level of skill, attention to detail, and familiarity with the necessary techniques and tools. While it can be a challenging task, it is not necessarily extremely difficult. The difficulty level may vary depending on factors such as the type of installation method (nail-down or glue-down), the complexity of the space, and the installer's experience. For individuals with basic carpentry skills and a willingness to learn, installing solid wood flooring can be a rewarding DIY project. However, it's important to note that proper preparation, accurate measurements, precise cutting, and careful attention to detail are crucial for a successful installation. If you are unsure about your abilities or the specific requirements of your installation, it is advisable to consult a professional flooring installer who can ensure a high-quality and long-lasting result.