How would I cut vent holes in my metal siding coop?

[ChirpyChicks1]

I have an 8'x6' coop and I'm needing to put in more vents. How would I go about cutting a hole to put in gable vents?

 

[blucoondawg]

Circular saw. Wear your safety glasses as chips will fly. This is how building contractors cut steel panels

 

[the75]

You could also use an angle grinder with a metal cutting disc. The disc looks like the same material used for brake pads, but it cuts through metal like a charm. I've cut through stainless steel like it was butter using the same method.

 

[ChirpyChicks1]

Thanks

 

[Ernie G]

Agree angle grinder.