Have a great day, corn18! Why don't you like the concrete to finish your floor? You can paint your floor or cover your garage floor with a thin concrete layer. Use the proper concrete mix, and I suggest you consult with
a professional concrete/building company when you plan this operation. The good concrete mixes you can find on Staples, Amazon, Target. When you are choosing the proper mix, remember about your weather conditions. If you are low on budget, you can just do the cosmetic painting of the garage floor. I hope I helped you with my advice! Cheers!