Two teens built a huge swastika Saturday out of folding chairs in the parking lot of a Great Neck synagogue, authorities said.

Erik Bracamonte and Joseph Cianciulli, both 16, were busted hours after they had crafted the symbol of hate at the North Shore Sephardic Synagogue, cops said yesterday.

The massive swastika measured about 12 feet by 12 feet and was discovered by the synagogue’s rabbi, Isaac Bakhshi.