This two piece Rowan Toilet has the following dimensions:
Tank height of 31.6875 inches
Bowl height of 16.125 inches
Tank width of 18.5 inches
Bowl width of 14.1875 inches
Total Toilet depth of 26.25 inches
The Rowan also sits 3/4 of an inch off the wall making the tip of the bowl exctly 27 inches from the finished wall on a 12 inch rough-in.
Spec Sheets for most products can be found under the "Documents" tab right next to the Q&A tab.