In <R7> section f., it says non-shatterable plastics can have 0.070" thickness. Can you stack 0.070" thick plastics on top or beside each other without breaking this rule ? Thanks in advance!
:p:D
Before we start, please note that Plexiglass (mentioned in the thread title) is not considered a non-shattering plastic and is not legal in the VEX Robotics Competition.
Yes, this legal, provided that all stacked pieces still come from your 12" x 24" allowance.
Thank you for the reassurance, we are very appreciative of it. 
You’re welcome!