After building the first chair I decided I did not like the sizing, it felt like the arms were to low and the back cushion really did not have any support so I modified the chairs a bit and rebuilt the chair and also made a matching loveseat.
I also decided to reverse the arms so the 2×6’s are on the outside instead of the inside, Originally I did this by mistake but I decided to keep it that way because it helped hold my cushion in place and I like it better that way. But most people I have asked say they prefer the arms the original way that Ana-White had them though.
I ended up making the legs 3" inches longer to raise the height.
I made the side slats and the armrests 3" shorter to reduce the depth to make my cushions fit better
For the love seat the only thing I had to change was I made the back slats the front slats and the seat slats 48" and I added in a 2x4 for support under the seat slats that attached from the front slat to the back slats.
Overall I love the way they came out very sturdy and we use them everyday!