We have an existing rectangular deck on the back of our home. The deck is approximately 12' wide and 37' long. I am adding approximately 10' x 10' on each end of the deck making it a u shape. The stairs will wrap the inside of the u shape. My question involves framing the stairs in the corners of the u shape. There will be four steps from the deck to the lawn. I don't know what to do stair framing wise to make this work in the corners.