Depends, regular ones as a single blade since they're assembled in the factory. But there are attempts to do it differently because of the inconvenience. A swedish company make wind turbine towers out of wood that can be assembled on site: https://modvion.com/

Here are some images to give you an idea of the size of large wind turbines https://growsverige.se/2023/02/11/storleken-svindlar-pa-nya-...