Locate wall studs with a stud finder
Mark the cabinet height and position on the wall
Draw a level reference line
Measure and mark the mounting points on the cabinet
Drill pilot holes in the cabinet back or hanging rail
Hold the cabinet in place at the marked height
Drive screws through the cabinet into the wall studs
Use wall anchors only if studs are not available and the cabinet is light
Check that the cabinet is level
Tighten all fasteners securely
Install additional cabinets by aligning and fastening them together
Recheck stability before loading the cabinet