Can you guys send me in the right direction. Guy at work ask me what size of a disconnect he would need to put in so that he could put in a generator in garage and feed his house.

What is code on this and were is it at in code book i havent had chance to look up and havent had much exposer to this but have also considered doing this at home.

I am industrial electrical maintenance man and haven't had much residential experience. but i do have code book and follow best i can at work and have 8yr experience but i don't want to tell him anything wrong and i think he wants me to do the work.