[plastiquebeech]

Impossible to manufacture? Or financially impossible to build a factory for the purpose and larger infrastructure to accommodate transportation?

I'm curious if there is something about acrylics which makes it impossible to make very large single pieces.

[barbegal]

I guess you could transport it at immense cost. But you'd also need a machine capable of moulding or extruding it this big. Current maximum for plastic pipes is about 3.5m diameter https://www.agru.at/en/applications/agruline/grand-opening-r... so you'd need something which is capable of more than 3 times the diameter.

[CoastalCoder]

Could one pour liquid acrylic into a mold (like with a concrete foundation), rather than extruding it?