One of the determining factors for the selection of suitable floor for the garage is the purpose of usage. You can choose cheap or expensive flooring. If it will be used like a storage of various items then concrete is a choice and at the same time cheap option. It is easy to clean and lasts several years. Shortage of this material is that is not suitable if the garage is used like a workshop. Another options is painting of the floor. You can paint the floor in the color that you want, with standard color for concrete or epoxy coating. Epoxy floors are resistant on oil, gasoline, chemicals, easy to maintain and have a sleek appearance. Another options for the garage floor are tiles. Tiles can be ceramic, plastic or flexible rubber. For your inspiration look some garage floor ideas.
Nice post. Thank you!