I finally got a chance to get started on sawing wood for the chair. We have a good Stanley brand hand saw, so the sawing goes fast. I just use a chair as a sawhorse, and hold the wood in place with one foot. I cut about half of the pieces needed in an hour or two.
The design of the chair is very similar to the couch that I built last year, but I still had to make a careful drawing and work out some details. The chair back is going to be different from the couch back, so I did some sitting experiments and measured how deep the seat needed to be, how far the back needed to tilt, and how high it should be. Design thrice, measure twice, cut once.`