Pulling together some other threads on the building of this ladder for my granddaughter's elevated fort.
Circular Saw Plunge Cuts
Circle/Radius Cutting Jig
With the handholds done, I've turned my attention to the ladder rungs. I had planned on making the rungs fro 2x6 lumber with blocks of 2x4 under each end as support. Then I decided that would make the rungs unnecessarily wide and I switched to 2x4 lumber for the rungs. Ended up not liking that width, so have settled on ripping down the 2x6 lumber and trimming the back edge at the same angle as the ladder. And using a router made recess pocket of the rungs on each side. Even though I used scrap stock to test the jigs for making the pockets in the stringers, I had to fill the first one in the first stringer, due to the change in the rung width.
I used a 1/4" round over bit on the 90º corners of the rungs, to match the pocket corner radii. That was nice as it made all of the corners exactly the same. Progress has been slow, mostly because there has been a lot of snow to shovel and blow at my daughter's. More to go, but there is light at the end, snow is supposed to slow up a bit in the next week, so maybe I'll get a little more shop time.
You're going to need some bracing to keep it from racking...
What is your plan for keeping the stringers from spreading...?
Just looking at the angle and the hand-holds, you might check that the hand-holds are not too far out for comfortable climbing...it almost looks like a child going up might be leaning too far back to hold the stringers...just wondering...