Smooth the paper tape carefully in the wet mud, using either a 6-inch taping knife or an inside-corner taping tool that features a preformed 90-degree shape for easy bedding.

If using preformed tape corners, attach them as recommended by the manufacturer, and then smooth mud over the corners, using long vertical strokes on both sides to form a sharp, uniform corner ...

Q-I am finishing an extra room in part of my attic where a dormer was added. I am using dry wall to finish the walls and ceilings but am having a problem with finishing the joints on the inside cor… ...