Those two in the front don't look equally spaced apart, and that's because they weren't. (I used the wrong mark at first and went back to fix, but I wanted to take the photo while this huge cloud was approaching.) Spars are all poplar, 2-up laminated, for a total of 1 1/2" square.
See the framing for the AC in the front?
This is a bit of a puzzle, because the unit will fit in from the outside, but not from the inside. This has to do with two little legs on the bottom of the AC, which I'll either remove or use as part of the exterior support system. Not something I can worry about now--because I framed this perfectly, giving it an extra 1/8 all around--but this had to be done NOW anyway. Another decision I made was to use a double spar at the bottom, so raise it off the floor 1 1/2". The unit CAN sit flush on the floor (it's built that way), but instinctively, it seemed to make more sense to raise it a little. (Floor vibration???)
I didn't follow the Cubby plans as to spar spacing. They're 12 inches or less apart, except for the two around the fan, which are 14. (See below.)
Notice the one side door cut on the left. We'll get back to that.
Now, here's the framing for that fan at the very top, or just an open vent, haven't decided yet:
I made it 14 1/16". So when they say a 14" opening, it had BETTER be a 14" opening. I just used single cross pieces here. Didn't see the need to make this double.
Now, back to that wonderful door:
It was a b**** cutting that birch around the door opening with this little cheap triangular hand/utility/drywall saw that I had just bought for this purpose. So newbies here, if you can beg, borrow or steal for a reciprocating saw for this chore, by all means do it. I didn't even do the OTHER one yet, because I was so exhausted yesterday from this. (And I'm going to hve to do the same thing for my EXTERIOR skins.) The cut was fairly clean, but I'm not too concerned about any roughness. It will be belt sanded anyway.
Today, I'm not gonna kill myself. It's Father's Day, and if it doesn't start pouring, I'm just going to cut that other door and into the pool we all go. During the week or next Saturday, I'll run my ground wires. Then just wait for my bendy birch to arrive from Massachusetts.