Fairly simple, especially if you have a miter station. So many repeating cuts. I think I cut the entire couch in 20 minutes.
I believe we’re in this for about $250; including screws, and cushions, and paint. Very inexpensive compared to purchasing.
So, I routed the arms with a 45 and added a 2x2 rail to keep the cushions from moving out the back.
I will be turning it into a sectional soon. Also painting it red...