That’s very similar to where I was going with my torsion box design (that wood whisperer video is one that I used as source material). The main, outstanding element I had left in my Fusion project was offsetting the alternating rows of small pieces. My construction plan was to use hot glue to assemble the initial grid, rather than pin nails or pocket screws, so butting the ends wouldn’t make assembly difficult. I like the idea of leaving the other options available.