I ike 12 x24 tile but I also need to have some clue as to your style .It also is nice to know where you live since a sun room IMO is great where the climate is iffy but a porch much nicer in a more warm climate/

I would say my style is traditional. We live in Middle Tennessee. There are very few days we can use our screened porch because of the heat and humidity here. The sunroom will have a separate heating/air unit, so we will still be able to open the screened windows on the rare days when the weather cooperates.