Instructions are pretty straight forward. It was just my husband and I, but we were able to get it done in about 6 hours total. We built the frame yesterday, and put the roof on today. The 10x12 is the measurement from roof edge to roof edge, I was hoping it was leg to leg, guess I shouldve asked. However, its still bigger and better than our old one. Wish it came with more hooks and solid panels... I ordered panels separately, but I dont have the right hooks for them, I sent a message today hoping to order more of the hooks that came with the net sides. Took a month to ship, because it was backordered, but hoping its worth the wait! First rain tonight and tomorrow so Ill report back if Im not still in love with it!