This is one of many reasons that I like to use masonite rather than canvas or other "soft" painting supports. Lots of people don't like masonite for their good reasons. But when something heavy fell on this finished piece (it was framed and signed) and poked a hole in it all I had to do was use my table saw and cut off six inches. Granted, I was lucky that the hole was in a place where I could do that.
The "new" piece measures 12x24
The "old" piece measured 12x30
"THE HOLE" The hole measures about 6 inches by 3 inches.
The hole sort of looks cool in a photograph. A big bird flying by? Note the smudged signature! Oh well! What the - - - - ?