How much movement does this take, the brown square being a solid 5 ft. ledge?
My reading is that it's 5 ft to walk up, then you have to climb 5 ft so that's 5x2 = 10 ft, but since you can't go diagonally through the space of solid objects, that only gets you to the middle square where you're sorta just holding onto the ledge and you still have to move 5 more ft. to get on top of it properly - so it's 20 ft total.
Is that right or am I missing something