I did end up cutting it square (and it is still huge). It was WAY too big to try and keep with cutting it (plus I sold eight pieces I cut off for $20 a piece to help pay for the framing). I squared up the sides and after realizing framing it myself was ay too big of a job, I had some one frame it for me. I decided to cut the top and bottom to match the sides because it was 6' tall. It is still 58" tall and wide. :
