I'm wondering if when you spoke to the manufacturer- did the question of information about load rating come up? For instance- 3/4" plexi is good for your application but at what weight and how much longer could it be made and still support the same weight proportionately?
Steel beam load calculators are easy to find, but I doubt such a thing exists for plexi. Short of hiring an engineer to figure it out I'm not sure you could conjure the answer without expensive trial and error...
Thanks again for the info!
you could use thin layer of plexi over lexan... if wanting to prevent scratching lexan, not sure how this would work/look overall ...just wanted to throw it out there
There is a way to calculate the load rating of Lexan. Ready?
The tensile strength is 9860psi while the tensile strength at yield is 899. Elongation at break is 130 percent, while at yield is it is 7 percent. The flex yield strength is 13900psi. Its falling dart impact is 125 feet per pound and notched Izod impact is 15 feet per pound.
Or you can ask an engineer
Found this info by the way on e-How. By the way, I buy Lexan at Lowes Hardware, although I don't remember if they had really big sheets. I use them for ticket windows, etc. I also use plexiglass for some applications. When mounting, they make a special washer with rubber that goes into the hole and around the hole (like a grommet almost). I get those at Ace Hardware. Keeps the stuff from cracking when I screw them down.
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