If you know the dimensions of your garage, you can just plug them into the Swisstrax Designer. From there you can figure out how many edges you need and how many of each color. As well as play around with the design to see what you like. Once you have something set, send us some screenshots and more info of your garage and we can look it over to make sure you'll have everything you need. Here's a sample of what a 20x20 two-car garage would look like:
For a garage that size, here's what you'll need:
Ribtrax Pro tiles are sold in packs of 6, so use the tile counts as a baseline, and round up by one or two packs for your main color option. For your secondary border color, just round up once. This will give you enough tiles in case you mess up a cut or damage one. Plus these are nice to have extras of down the road. Choose looped edges pretty much always. For a standard two-car garage door you will want 2 packs of 10.