
So. Before felting:
Also note that amazing blaze of color in the center. I think all four skeins were the same colorway, but the first and last were definitely a different dye lot. (The first might be a different colorway; the orange is pretty distinctive. I don't know because I get fiber from M's excess stash and it's not labeled.) Anyway, also note the grey striping makes it seem wavy and wrinkled, but I assure you, it's flat.
I was so damned happy to be done with this rug that I forgot all about bagging the project and sticking a towel into the cycle to give it something to felt against. I just threw it in hot with a drop of Soak and let it go. Maybe that's the secret, although everything going through the washer for the next few days is going to sport tufts of wool.
I wish I'd remembered to measure it... unfelted, it was about 36 inches in diameter, I think. Here's a before and after with Murdercat for scale.