The top of the door at its widest point measures approximately 30 & 1/8 inches
The bottom part is difficult to measure because of the radius but I got 25 & 1/2 inches ?
I also measured this at 25 & 3/4 inches
and this at 8 & 1/2 inches
It would be best if I could make a paper template of the door from where the top starts to turn horizontal to the bottom edge and mail it to you. Let me know if you would like me to do that. I don't go back to work until Friday so I have time.