BoM Question

[Browzilla]

As ship date is getting ever closer, our team (or at least me) are starting to work on the BoM (Bill of Materials). I finally found my copy of the template provided, to note to my horror that weight had a column to be filled out.

Getting the weight on some of this stuff will require some disassembly. Is the weight required? I can't imagine it would be, all that really matters is that the robot's under 120. But I'd also not find out that it is in Milwaukee and have to be madly disassembling the robot there to get weights.

While we're discussing this, regarding the pricing. If, for example, we use a 20"x14" piece of sheet aluminum, we're allowed to use a smaller piece to get an average price for the other, right? For example find out the price per square inch of the piece, times the total square inches?

Ex. 1/2" plywood at 20 cents a square inch, and a 50 square inch section = $10 on the BoM?

I know it's in the rules, but I'm a little confused on the implementation.