'29 coupe door opening dimensions

Getting ready to start fitting the rear quarters to new subrails (not drilled) on a '29 sport coupe. I've been doing searches and can't seem to find a dimension from the A to B pillar. Could someone open the door on their coupe or sport coupe and get me a measurement of the opening width at the hinge points, top and bottom, please? Every pic I've seen so far indicates the door width at 29 1/4", but nothing about the inside opening width.
Thank you-much appreciated.
RB

 

i could get you one a little later today. im sure someone will beat me to it.

 

Upper from A pillar to B Pillar even/Level with Hinge = 28 1/4 "

Lower A Pillar to B Pillar even/Level with Hinge = 28 " on my 29 Business Coupe

if you want the measurement taken from the hinge pins ,I can do that also

 

That works just fine, I needed a starting point.
Thanks for your help.
RB

 

If you have the doors, fit them before attaching the quarters permanently.
I've seen '29 doors that varied as much as 3/8".
Good idea to check them.

 

Once I get the hinges sorted out I'll do that.
Thanks,
RB