When Otis got to the point where a late-night escape over the bars of his crib was inevitable, I took it upon myself to build him a big-kid bed. The crib mattress was still plenty big, so I built the thing around that.
Here’s a closeup of the peg that holds the slats in place:
Here’s Mom and Otis helping measure out the spacing between the slats (Duplo blocks were just tiny bit the wrong size but three scrabble tiles–two laid lengthwise and one up on its edge–proved to be just right):
First flop: