Which way should kitchen cabinets open???
Actually, there are no set rules as to placement of knobs.
But here's a starting point:
On modern style cabinet doors, 'knob' style pulls may be places about 1 1/2" to 2" from each of the edges (Side and bottom of the door).....
If using 'handle' style pulls, rather than 'knobs':
Placed horizontally: You could center them 2" to 4" from the bottom of the door and about 2" from the side edge of the door.
Placed Vertically: They can be centered on the side 'rail' of the cabinet that runs vertically...and about 2" from the side edge of the door.
Additionally, if you have alot of knobs/pulls to install, you really should either:
build a 'jig' (template jig)...with pre drilled holes for the knobs...
... or you can even purchase an acrylic jig at one of the large home stores.
Using a jig insures that the knobs or pulls are each placed identically onto each door panel ...
- Build Well -