I have a 200 amp mobile home hook up my mobile home is hooked on it and I was wondering much elec. I could pull out of my outside box without affecting my home.I'm wanting to wire my garage.

A normal garage uses very little power, lights when in use, garage door opener, maybe some small hand power tools.

So adding a garage to a 200 amp service should not be any problem.

How much power is needed for this garage?

220 welder 220 air compressor 110 mig welder and 10-15 110 floresent lights