A guy I work with told me about this site since I'm getting ready to build a 50x60 shop he thought I could find some good advice on here. Site looks good but now I have a lot of reading to do on here.
If you've still got time, build about two-three courses of block from your garage slab. That way you can wash it out with a pressure-washer without soaking the wall studs. Almost no additional cost.
