how to mud an obtuse angle

Dr. Awsome · 10-23-2009, 12:20 PM

I have my drywall installed and am ready to start mudding. I'm having difficulty getting some obtuse angles to come out well. I would say the angles are around 270 deg. Is there a flexible corner bead I can use? Also is it better to use folded tape or a corner bead for 90 deg inside corners? This is my first drywall project I'm doing on my own.

joed · 10-23-2009, 12:49 PM

Inside corner get folded paper tape. Outside corners get bead. 270º is a reverse 90º. I don't get the problem.

Maintenance 6 · 10-23-2009, 12:49 PM

No corner bead on inside corners. Just tape folded at 90 degrees. For outside corners other than 90 degrees, use a corner bead with paper flanges. It will have a metal bead, but the legs will be paper. Some guys use this style for outside 90s as well. For a beginner, it will probably be easier to use a full metal 90.

Willie T · 10-23-2009, 01:02 PM

I could see having trouble getting into a tight acute angle, but an obtuse angle? That should be a piece of cake with creased tape.

Dr. Awsome · 10-23-2009, 02:44 PM

sorry, my brains wasn't working in deg form. It's probably a 130 deg angle. So it sounds like the key is to make sure the drywall is trimmed and fits nice and snug then use either the paper tape or the tape with metal in the center. The problem is it's my first time and I don't want it to look like crap when I'm done.

joed · 10-23-2009, 07:33 PM

The most important part will be gettng the line of the corner straight.