Measure the space accurately
Decide the cabinet style and dimensions
Choose materials such as plywood, hardwood, or MDF
Create a detailed cut list
Gather tools and hardware
Cut all cabinet parts to size
Drill shelf pin holes if needed
Assemble the cabinet box
Square the cabinet during assembly
Attach the back panel
Build and install face frames if using them
Make and fit doors and drawers
Sand all surfaces smooth
Apply stain, paint, or finish
Install hinges, slides, and handles
Mount the cabinets securely to the wall or floor
Check alignment and make final adjustments