You may want to check with your local Building Department. You are adding living space to your mobile home.
Things to consider are: light and ventilation, heating and/or cooling, wiring, footing size for the added weight, safety of the structural framing (tie-in), etc.
You could be in a high wind (Florida, etc. area) or a seismic zone (CA, etc.) that address special concerns.
When you go to sell, you may end up tearing it all out. Be safe, G
Things to consider are: light and ventilation, heating and/or cooling, wiring, footing size for the added weight, safety of the structural framing (tie-in), etc.
You could be in a high wind (Florida, etc. area) or a seismic zone (CA, etc.) that address special concerns.
When you go to sell, you may end up tearing it all out. Be safe, G