Okay, I can see how someone could look at the pictures in my last post and just think "This dude hasn't built anything. Those are just rectangles." Fair enough.
So, it is my pleasure to present...
Stairs.

Yesterday, Sunday, I designed, framed and completed most of three stairs, or climbing blocks, for my two guys to us to access the second story of their little palace. Also, I completed the floor structure for the first floor, and much of the second. The hold up now is lumber.

Tonight, Monday, was allegedly a night off. A was a total trooper, basically giving me up for the weekend to work on this, and tending to N & Z all by her lonesome, for like the 6th and 7th day straight. So, tonight she's chillin' with her homegirl, while I'm on Daddy duty.
So, I got the boys to bed, and then I brought out the table saw to do some light cutting, to get ready to install safety rails -- an integral part of what I'm now calling Phase 1.
Getting started, and knowing where I needed to end up, but not knowing how exactly I was going to do so has been a learning experience. Part of what I learned is that this project is going to go, formally, in about 4 phases. Each phase represents a point at which I could safely walk away, allow the boys to play and if need be, determine that the project is effectively completed.
Phase 1 is not yet finished... clearly. At the end of Phase 1, the house will have an open-air, fully decked lower floor (check), three climbing blocks/ stairs (almost check), a fully decked upper floor (half check), safety rails on the upper level and a safely installed slide, climbing rock wall, pirate ship wheel, and mounted binoculars.
I bought the slide, wheel and binoculars, and as I said Saturday I have the wall. What I don't yet have is all the lumber, and since actually purchasing and installing the lumber involved taking the car seats out of the SUV, and folding the seats down, and getting to the store, and spending money to do so, all of this probably after the boys go down for bed at 7:30...it's not quite as easy as it sounds.
Anyway, at the end of Phase 1, we'll have a functional playscape (not playhouse per se) that will look something like this:

...with safety rails.
...or will it look something like this:

I had planned on having the slide on the broad side, along, eventually, with a door, and maybe a window, but at this point, I'm considering switching the two, because the rock wall, and climbing blocks would be right next to each other. I'm open to any suggestions anyone may offer in the comments section... in the unlikely event anyone ever reads this... ever. Enough with the ellipses.
Phases 2, 3 and 4 are, as yet in an undetermined order. One phase involves the walling in of the lower deck, to actually turn the structure into a formal play house. Another phase is to install a roof or shade on the top to keep my little yella-headed kids from burning up like the vampires in that whatchacallit Anne Rice movie. And the other step would be to build the swing structure.
I can see a logic to doing any of these next. Obviously, the swing structure is the biggest upgrade to the overall play experience. I already bought the swings, and to tell the truth, I plan on installing the heavy duty swings, so that my hefty ass can sit on them. That would be nice to have, if the boys are in the playhouse, and I want to sit nearby. (You can maybe see my hammock in some of those pictures, but that dude doesn't get much use)
On the other hand, if I do that before the house is walled in, then I run the risk of a kid stepping out of the lower floor, right in front of someone who's swinging. Getting concussions are generally against house policy.
So there's the argument for doing the house first. It is also a big upgrade for the play experience, but doesn't raise the safety issue that the swing might present.
Clearly this is good, but it ignores the fact that I plan on installing house grade siding on the house structure, which means that only one side will be fully weather resistant, while the other will be essentially designed to keep out of the rain, raising the point that I should perhaps install the roof, or cover, which really does the least for improving playtime, before installing the walls.
But, I'm getting ahead of myself. First up is finishing the floors and rails. No telling when that will happen, but if first impressions, from my harshest critics are any indication, the sooner the better.