Plaster Wall Repair: Repairing Uneven Plaster for a Smooth Wall Finish

Submitted By
Tom Kraeutler
Answers
1 expert, 0 community
Q:

After steaming & scraping off three layers of wallpaper on a wall, I found that the plaster unevenly meets the wallboard where previous owners apparently covered a doorway.

Should I use Venetian plaster to fix the plaster or should I sand the taped edges down about 1/8 - 1/4 of an inch and then prime & paint the wall?  The patch on the middle of the plastered doorway is where I found it nearly impossible to remover paper from the plaster without ruining the plaster.