Hi Paul and welcome to the forum! You'll find us an odd lot (perhaps akin to the doors you bought)
I can't see any reason why a door of the right size wouldnt fit an appropriate opening but without seeing the application and doors its very hard to advise - when you say framed and ledged, do you mean external Californian Bungalow doors? If you can, take a pic on low res and either post it here or send it to me at steve_is@graphic-designer.com and I will resize it and post it here.
BTW what suburb are you in and what style is the home? If it's a new home, maybe you have a sales pic or two that would help give an indication.
Cheers and have fun