Hello, l am a high school student moving away to play college football next fall. During the upcoming winter months I would like to do some sprint training in my uncle's warehouse which is currently vacant. The problem is the concrete floor is not great for sprinting on. I was hoping to lay down a strip of something or other about 3 or 4 feet wide and maybe 90 feet long. I don't have much money to spend. I was at Home Depot today and saw some 4x8 sheets of osb that were reasonably priced, and wondered about using 11 or 12 of those sheets laid end to end. I guess it wouldn't be ideal but maybe better than concrete. If anyone had some suggestions for me it would be greatly appreciated. Thanks a lot.