For lack of any better ideas a book was laid on the sheet and traced around. Then the sides marked and cut for 4" walls over a 9x12" floor.
Really just to see if it would be useful or not. Open top access has well known problems. Then once at work an unceremonious dump of tools from the other tote to this one.
I really did not bother to consider quantity nor weight at all. And it was big enough with better access to most used (difficult access to least used also) if nearly completely disorganized.
The next I made was 7 X19" with 4" walls but have not done a follow up with the owner. See if he hates it and how much.
Living experiments not based on science, needs nor faith but more because I was bored sunday afternoon. Lol! I could be great at designing new Dodge cars!!!!