Generally, the entrance door can't be arched, but the doorway in the indoor light wall can be arched.

Determine the highest point of the arched door opening

It is suggested to add steel beams at the door instead of lintels.

The arch hole adopts light steel keel sauce doorway.

Fix gypsum board on light steel keel

Scrape gypsum putty on gypsum board, grind it flat, then brush interface agent and then paint.