The primary benefits of wood reinforcement in acrylic bathtubs include increased structural integrity, improved durability, and enhanced user comfort.​ Fiberglass insulation provides several advantages when used in acrylic bathtubs, primarily enhancing heat retention. This insulation helps maintain the temperature of the bathwater, allowing users to enjoy a warmer soaking experience for longer periods without the need for constant heating. Additionally, it can significantly reduce noise during the filling and usage of the bathtub, contributing to a more pleasant bathing experience.