Detail this asset from Unity Store: Original Link
This is a paid asset, but now you can download Animated Sci-Fi Doors Free.
Animated Sci-Fi Doors v1.0
This pack contains 4 professional quality doors with high quality PBR textures in 4k resolution. Included script to open automatically as the player approaches, and to close when the player moves away. You can select sound for opening and close of each door.
High quality PBR textures in 4k resolution.
Prefabs ready to drag and drop in your project.
Ideal for industrial or futuristic world.