Wow, looks great, and you are moving fast. I like the layout. The fact that you didn't do the border around the perimeter is telling me you want to go up the wall? If so, I like it even more.
I thought of doing a border but it will give the garage space the illusion of being smaller than it really is. Second, the long wall on the side that's not tiled yet is out of square by 2.5". A border would really emphasize the out of squareness. I'm still undecided about the baseboards, I want to finish the floor first and then figure out if I'll do the baseboards using the lighter tiles which will also act as a border.
Looks awesome can't wait to see the final product. Was it mandatory to use porcelain? I'm in southern ontario as well, and was hoping to use ceramic. What is your professional opinion?
Porcelain is not mandatory, but it would be preferred for our environment especially if you plan to park your daily driven snow covered vehicles in the garage during the winter months. True porcelain tiles generally have less than 0.5% water absorption. Plus they're more stronger and have a more durable finish, which can take more abuse. For me, I wanted to make sure my floor is pretty much bullet proof, because I do a fair bit of tinkering on cars and woodworking.
If you're looking at ceramic tiles based off of price, porcelain has come down in price and can be easily found for around $.80 sq.ft
Understand the key to a strong floor is all in the prepping and installation of the tiles (ceramic or porcelain) with no voids!!!