It depends on the cabinet line. Some cabinet doors are "reversable" and the boxes are drilled on both sides. These are usually the inexpensive lines that may need to be assembled in the field by the installer. Some are not, and must be ordered correctly from the beginning. Most of your mid and upper end lines will be this way. Those that are reversable will have square doors, and will need cover plates to go over the hinge drilling in the opposite side of the box to make it look cosmetically attractive.

That's not to say that if you order a door hinged the wrong way that your installer can't rebore the box and move the hinges to the opposite side if the door is a square one, but it never looks as good as the factory bore for the most part because it can't be done "flat" under a drill press.

Our Thomasville cabinets came complete - doors and drawers all installed. We took them off while installing. So yes, it's important to get the hinge direction right.

Thanks! I'll double check!!!