Use a straight edge to draw a clean rectangular or square hole around the drywall damage. A straight-sided shape makes it ...

To repair plaster walls ... Next, secure the loosened field to the lath between joists with more washers. Finally, skim-coat ...

Drywall is a staple in most homes, and so are drywall dings, drywall cracks, and every other kind of drywall damage you can ...