Many years ago I built a Mismade Girl from Osborne plans. Although it worked pretty well, I built it from 1/4" birch plywood, and I seem to remember thinking that it was too thin. Looking back through my plans, the Mismade plan only specifies to use the same materials used in the Stack of Boxes, which is 1/4".

Have any of you built this and, if so, what did you use? I'm thinking of moving to 3/8" this time. Do any of you have a commercial version that you could measure to see what they used?

Thanks.

I used quarter ply.... I was stronger then. NOW I would likely use gator board or Sintra, with lamnante and reinfoced with aluminum.... and hire big guys to carry all the heavy boxes for me... And feathers! yeah, anything light....

But... seriously, I would lean toward 1/4 still, reinforced where needed.

Stay with 1/4" by all means, and as leapinglizzards suggests, reinforce it where needed. I helped a guy build one out of 1/2 in plywood (he originally was going with 3/8 but decided that would not be "heavey" enough. Those boxes were far too heavy to handle easy on stage. I wouldn't even go with the 3/8 inch, stay with 1/4 stock.