The corner in my kitchen is right around 47 degrees. The previous counter top was made using the precut 45 degree miters. This resulted in about a 3/8 to 1/2 inch gap from the wall to the edge of the countertop and it looked terriable. The previous owner filled it with cardboard then caulked it.

So my plan was to get some straight pieces and cut my own miter. Well at least try. I assume I cut the counter top upside down but how do I cut it when the back it not flat? The counter top comes with an attached back splash do I have to cut it from the both turn it over then cut it from the top and hope it lines up?

any input would be helpful.

Thanks,
Scott