I've been trying to find bulk fluted/extruded plastic and aluminum, but the few places that have pricing are pretty expensive. GE has a plastic shop in Coppell, but their site is SO fancy that it doesn't work in IE or Mozilla engines. Western Extrusions is in Carrollton, on Sandy Lake. I used to drive by them all the time. It's aluminum only and no info on pricing online. Plus, aluminum = sharp edges = death, and cutting it would be difficult. I'd probably have to get a jig saw.
Making my own pipe dome would be a PITA, but out of aluminum, it would be pretty light. But then, I'd have to steal a parachute. :)
AND, despite what anyone in "the industry" says, "corrugated" is NOT a noun and is insufficient in detail to adequately describe a product.
It's corrugated cardboard, or corrugated fibreboard, or corrugated kraft paper, or whatever.
Corrugated is an adjective.
You can have corrugated plastic too.
Corrugation is a way of creating a fluted sheet by having a sinusoidal sheet sandwiched between two flat sheets.
But, I'm tired of talking about this sheet.
Plastiweb Modern Plastics
PlastiDip for safety on the fort ends.