Door frame 18mm too wide for standard french internal doors

[Chloe Bunce]

Hello, We need to replace our current internal french doors, however the width of the door frame is 1390mm and the standard door sizes seem to be either 1372mm or 1524mm, both too big or too small.

Does anyone have any ideas of the options outside of getting bespoke doors made?

Could we cut a 1524mm door down? The current double doors have a thin wooden strip added to one side, which you can’t see unless very closeup, would this be an option?

Thanks in advance for any suggestions!

 

[foxhole]

You could reduce frame size with 18mm thick timber on one side allowing smaller doors to fit.

 

[Tigercubrider]

Or 9mm on each side