For the fourth of July dad and I headed to Home Depot so I could stimulate the economy in good consumer fashion. We ended up buying more studs than I'd planned on because the sling of cheap 'whitewood' happened to be really good quality fir, and who knows what the cheap sling will be in two weeks? (this also drove the decision not to build the north wall thicker, since for that it' d make more sense to buy 2x6s and the 2x6s were crap, while the 2x4s were really good. We could still fur it out, but cutting and applying all those furring strips would be a lot of work for an R-6 insulation boost).
Back at my place, I started work on the sill plate (cutting to size and countersinking the holes for the anchor bolts so the wall plate would sit flush) and wall plate...
While dad worked on pulling the siding away from the header and figuring out where to make the cut so my new window would be at the same level as the existing ones, and then did the tricky plunge cut:
(The 1x2 is just tacked up there so he had something straight to cut against).
The deconstruction and plunge cut were the hard bits; the framing went together in twenty minutes, and then we propped the garage door over it again so dad could run off to his 4th of July party (E and I celebrated by making Japanese food and watching a French movie).
Saturday we sheathed, and now it looks like a real wall!