How to Paint Paneled Doors in Your Home
Paint the vertical panels of the door, again following the grain.
Work from the top down to the bottom edge. To keep surfaces smooth, paint from dry areas stroking toward wet paint. Let the paint dry and cure according to the paint manufacturer’s instructions.
Remount the hardware and hang the door. If you didn’t take down the door, try to keep it ajar for as long as possible after you paint it. It can take as long as a week for it to cure. The longer you can wait, the less you risk the surface becoming marred.