Raehelen, there is plenty of room to get in the tub and it is easy to step over. The height of the tile is 17-1/4 inches and the tub lip is about 1-1/2 inches so approx18-3/4 inches total height. I am only 5'4" and have short legs. I have no trouble what so ever getting in or out of the tub.
Hope you can tell from the attached picture that there is a very nice back rest at the closet end of the tub. With the sloped/contoured backrest and the arm rests it really is a very comfortable tub to relax in.
The tub is Kohler's Mariposa. It comes in different lengths but they are all 36 inches wide. If you could make that work for you, I highly recommend the tub.
Her is another picture of it.
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