Chain-operated metal warehouse door being opened

The audio commences with a distinct metallic clank, resonating sharply in a large, hollow space that gives a sense of an expansive warehouse. This is followed by the unmistakable sound of a heavy metal chain being pulled, each link grinding against the other. The chain's purpose is soon revealed as the deep grating noise of a large metal door being opened fills the air. The door's considerable weight and size are evident through its stubborn resistance and the echoing groans of its protesting hinges. After a moment of struggle, the door finally gives way, producing a satisfying sound of an opening gate. Suddenly, the warehouse seems to exhale, the echo of the now-open passage bouncing off the distant walls. The audio concludes with the faint clatter of the chain being released and the door settling into its open position, leaving the space open and accessible.