Ditto using the drill bit to make a small hole in each corner of the rectangle, so your blade can have a starting opening. The piece of plywood you end up with could serve as a door over that window once the hardware cloth (mounted on inside) is in place. Lightly sand down the edges, get the right type of hinge (hinges confuse me...
), paint both sides of the wood piece, then attach like a door to close off your new window in the winter, if that is your intent.
), paint both sides of the wood piece, then attach like a door to close off your new window in the winter, if that is your intent.
