H
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Tried using a 12-inch taping knife on a cathedral ceiling job in Austin. It was a bad idea.

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3 Comments
riverp37
riverp372mo ago
Oof, that sounds like a special kind of arm workout.
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jennifer_west
Read a blog post from a drywaller in Florida who said anything over a 10-inch knife on a steep pitch is just asking for trouble. The weight and leverage make it hard to control, especially with overhead work. He recommended using a smaller, lighter knife for ceilings to keep the mud from sagging. Makes total sense after thinking about the physics of it.
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the_david
the_david2mo ago
Depends on your technique. A 12-inch knife works fine if you keep your mud tight and use a solid pole.
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