Using Router to Flush Trim Door Jambs
I’m a homeowner installing new pre-hung doors in my house. My house was built in 1939 and has plaster walls. The walls vary in thickness from about 5″ to about 5 1/2″.
I’m planning to have the doors (TruStile) hung on 5 1/2″ jambs. However, before I do that, I want to figure out how I’m going to trim the jambs flush with the walls where the walls are less than 5 1/2″ thick.
How do pros typically handle this problem? I could probably do this with a jigsaw, block plane, or MultiMaster. What about using a router with a flush trim bit. Running the bearing along the wall should result in a perfectly flush jamb, right? I think the only areas that I wouldn’t be able to do using the router would be the top corners and the bottoms because of the width of the router base.
As a more advanced approach, what about using a Festool MFK 700 with the horizontal base? This would also allow me to do the top corners (though still not the bottoms).
This may be a completely insane/stupid idea, but figured I’d ask. What do you guys think? Thanks.