I have an install next week and need the size of the Bracket at the end of the Mast (that screws to house). I am mounting on a horizonal 2x8 facia that has a 1x2 trim piece I need to cut out to the width of the bracket. I'd like to locate my rafter and cut the trim so the Bracket will go between (so the installer can't miss the rafter with the center bolts). I'm assuming my facia is nailed to therafters. My guess is it is about 4"x7", but a more accurate number would be helpful.