There will not be any difficulty because you are cutting with the grain of the corrugation and can even use them as guides in some instances.
How do you cut steel siding.
Step 1 cutting lengthwise.
To cut in openings.
You can cut mild steel up to about 3 8 in.
To cut corrugated metal siding lengthwise or with the corrugation you can simply use a set of electric shears to do the job.
Hot metal chips will fly everywhere.
How to cut metal siding step 1.
My guys like to use and abrasive blade on a 4 1 2 grinder.
A handheld cutting tool fitted with a metal cut off wheel will easily cut through sheet.
Commercial panels i use kett power shears works ok on the ground but when you are cutting in a door opening into panels that are already installed the shears arent as good.
Jigsaws and metal cutting band saws are more work but can make most cuts in light to medium sheet metal.
Marking the siding using a permanent marker to make a line on which to cut the metal siding.
The snips work best when cutting shorter lengths such as across the width of a single sheet.
Wear a strong pair of gloves to protect yourself.
Selecting the surface the metal siding is placed on a strong surface.
Thick using a ferrous metal cutting blade.
Tin snips leave jagged edges so handle the metal carefully.
In our test it cut through rebar like a hot knife through butter.
Using the right tools to do the job will make it easy.