I want to replace my doors.? I want to replace the doors for my bedrooms and bathrooms. ...

I want to replace the doors for my bedrooms and bathrooms. I noticed that most places flog the doors pre-hung with the jambs and they're pretty expensive. Do they not trade the doors just by themselves?

I know I would hold to measure and cut the hinge holes, but that's effortless. I just don't want to hold to buy the whole pre-hung door & jamb.
How do I even up my wall prepared...
Answers:    I merely replaced my doors in my bathroom (2) and one contained by my bedroom... I bought mine at home depot. I just measured the door frames and took the measurments within. Far less expensive than purchasing the full thing (door and jamb) Some of the doors don't enjoy knobs on them, so craft sure before you purchase whether the door cost includes the knob or not...
Garage conversion?
Any lumber yard and most home centers put up for sale doors prehung or not prehung (called slab)