I am trying to model a house both interior and exterior but just not sure how to go about this. I started to model the house in max using shell modifiers, but soon found that it gets a little messy. Any tip or tricks that you pros use to accomplish this small but almost seemingly difficult feat. Thanks.

Model one at a time.

I'd roughly model the outside, and then start placing place holder objects and rooms on the inside, tweak until you can finish the outside, and then do the interior.

So in other words, I need to find my workflow.

I would model it as two separate pieces and not bother with the shell modifier.

I worked on a farmhouse environment a while ago, and I found it was best to model just the floors of the house first and nail the proportions of room sizes, then extrude upwards for the interior walls and put a ceiling on them. Then work on your exterior stuff.

Everything doesn't have to line up perfectly, this is 3d art afterall and it doesn't have to be 100% realistic!