What is the recommended (assuming there is one) way to paint a new unfinished solid wood front door and jamb - What type of paint should I use, what type of brush, how should I prep, and how many coats should I do. There are some holes in the jamb so I assume I should use a wood filler and sand prior to painting. Any advice is recommended.
To do this right take the door down.remove hardware, remove gaskets. lay door flat on saw horses, apply a exterior oil based primer to all raw wood with a natural bristle brush 2.5-3”.Allow to dry Rehang door and wait 24 hours.
Remove door again lay flat on saw horses. Sand the primed wood carefully smoothing the raised grain.
Dust off or blow off all surfaces. Paint with high quality exterior 100% acrylic paint of the desired color and sheen. Use a real nice nylon brush like a Purdy 3” $20.00-$25.00
Let dry. Rehang door. Wait 24-48 hours. Remove door. Repeat the sanding and blowing off dust. Apply second coat. Let dry. Rehang door reattach all hardware after 24-48 hours.
During each painting step be sure to coat the top and bottom of door.
After priming frame and jambs apply wood putty to any holes allow it to dry then sand. Apply caulk to any gaps after primer has dried. Allow caulk to dry before painting.
After final coat has dried for 72 hours reinstall gaskets.
This is a stain quality door so consider staining it; this would be a lot easier than painting. You could stain it with oil based stain and then use a wipe-on tung oil treatment over the stain. Every few years refresh the tung oil with the door in place.
The jamb and trim would be primed and painted.
If you later decided you needed a more protective finish, you could use the right polyurethane varnish over the tung oil.