Turf grass for potty training?

Hi all, my hubby and I are adopting our first puppy this weekend. I have read to avoid puppy pads as to not associate rugs and the potty with indoors. I have seen the grass pads and was wondering if I could use my own turf mats I have. My dad gave me 3 or 4 of the large faux grass carpets and I was considering cutting them and making my own grass potty mat for just in case. It is also currently regularly below freezing where I live, and the ground is covered with a thick layer of snow pretty much everywhere. Was also wondering if this can cause confusion since the snow will be a different feel than grass will be- so would a grassy potty mat out back on our deck be beneficial to help puppy with texture association? He is 8 weeks and coming from a humane society.. mom was found with puppies at an abandoned house so I am pretty certain they have no other experience with potty training. Just looking for the best way to approach this! Thanks