There wasn't a 1.16+ version, so here ya go.
And yes, I realize now that the new block generator has a door generating feature (my 1 hour for nothing D:)
Credit: https://www.pixelpapercraft.com/papercraft/5436bbeb7acf17646b000080/doors-minecraft-18
Silhouette design: https://drive.google.com/file/d/17096hWVA5ZrYGEP_zh931SrgMvmGkZ5J/view?usp=sharing
How to Print?
1.Click on the papercraft design image.
2.Make sure it has not been resized by your browser (you might need to click the image again).
3.Print using your browser's Print function.