Add Yahoo as a preferred source to see more of our stories on Google. Achieved by spraying, troweling, or rolling drywall compound onto your walls and then "knocking it down" with a knockdown knife, ...

“Mudding,” the process of applying multiple thin coats of drywall compound to the joints and screw indentations in newly hung drywall, sounds messy, and it is. When done correctly, the result is a ...