This floor is at our hotel in Scottsdale.
Sounds like a fancy hotel!
Maybe this will help explain...
Rectified is a term most often used with manufactured tiles such as porcelain as in, you guessed it, ‘rectified porcelain’. Natural stone tiles are rarely
clarified as rectified because they normally are.
Rectified tile means that each tile is identical in size – length and width. As in each 12 inch tile is actually 12 inches – exactly. And each one is identically sized. Or, more accurately, if each 12 inch tile is exactly 11 7/8″ wide, they are all exactly 11 7/8″ wide. The ’12 inch’ part isn’t the important part – the ‘identical’ part is.
What is the difference between a rectified ceramic and porcelain and one that isn’t rectified, you ask? Glad you asked. A normal (non-rectified) ceramic or porcelain tile is formed and baked. This baking process will cause the tile to shrink ever-so-slightly and each tile may shrink a differing amount. This will lead to tiles that are not identically sized. Although the difference in tiles may be only 1/64″ or smaller, if you run a row 25 feet down a floor you may end up with a total 1/2″ difference overall.
http://floorelf.com/tile-stone-types-honed-rectified-gauged
Lots of good info for the non stone guru(everyone but Mike)..!