In need of new tennis courts, Lebanon High School recently installed post-tension (PT) concrete tennis courts. To create the courts—expected to last about 25 years—concrete is poured with cables or tendons that extend from one end of the court to the other. These cables are mechanically tightened, slowly, as the concrete hardens. This process creates tension loads within the concrete, preventing the large cracks that eventually occur in asphalt tennis courts. It is important to note that any hard surface court—whether asphalt or PT concrete—will still need to be resurfaced about every five years.