Locate wall studs with a stud finder and mark their centers
Measure and mark the cabinet layout on the wall
Draw a level reference line for the cabinet bottom or top
Remove cabinet doors and shelves if needed to reduce weight
Mark the cabinet mounting holes on the wall
Drill pilot holes into the studs
Install a temporary ledger board at the correct height
Lift the cabinet into place and rest it on the ledger board
Check that the cabinet is level and plumb
Drive screws through the cabinet back into the studs
Tighten screws securely without overdriving
Mount adjacent cabinets and clamp them together if needed
Fasten adjoining cabinets together through the face frames or sides
Recheck level, plumb, and alignment after fastening
Reinstall doors and shelves
Remove the ledger board and patch any wall marks if needed