Reassemble the Cabinets
Install the door hinges first. Position each hinge one hinge-length from the bottom and the top of the door (use the hinge itself to mark the location by lining it up with the door edge and marking the wood at its opposite end). When you bore the screw holes use a self-centering drill bit, which aligns itself in the hardware screw hole and sets the right depth so you won't drill through the door (Image 1).
Note: Before you install the hinges, orient the doors so the grain or pattern points either up or down on all the doors. Which way is a matter of choice, but a uniform look is generally more pleasing (Image 2). (The grain tips on the doors for this project all point down.)
Create a jig for pre-drilling door hinge holes in the cabinets. A shelf clamped to the bottom rail ensures that all doors will line up evenly when hung (Image 3).
Install door shock absorbers inside each cabinet opening to enable the doors to open and close smoothly. These work especially well with cabinet doors that have glass inserts (Image 4).
If you purchased new drawer fronts and boxes separately, lay one of the new drawer boxes on an old drawer front to ensure proper alignment. Take equal measurements on the top, bottom and sides, then transfer these dimensions to the new front panel. Drill pilot holes for the screws and clamp the front and box together when installing the screws from inside the drawer box (Image 5).
Repeat these steps with the other drawers. When finished, install the drawer pulls.
Reattach the old slides to the new drawers, or install new drawer slides. Older cabinets typically have 3/4-extension slides. Upgrading to full-extension slides adds convenience, and the new hardware will last longer (Image 6).