Measure the cabinet opening
Decide on the door style
Choose the wood or sheet material
Cut the door parts to size
Mill the edges and profiles
Cut joinery for the door frame
Cut the panel or center insert
Dry fit all parts
Sand all surfaces
Assemble the door
Clamp the door until dry
Trim and square the door if needed
Sand the assembled door
Apply primer, stain, paint, or finish
Install hinges on the cabinet door
Mount the door to the cabinet
Adjust the hinges for alignment
Install handles or knobs