One of the factors that will determine the cost of installing Manhasset Formica countertops in your home is the level of thickness that you want. Thicker countertops are much better than the average sized countertops. However, because of the additional thickness, you will have to pay more in order to get these countertops installed at home. These are some of the things that you need to discuss with your contractors ahead of time because you must plan and budget accordingly.