If you’re looking into building your own house or are looking for a new home, it would help to know what the Common Room Sizes are. Having this information will give you a good idea of how big or small a room needs to be in order for it to be comfortable enough when the furnishings are already in place.
The square footage of the house is not the main determining factor in conceptualizing rooms in the house and their Common Room Sizes, although it does play a part.
However, perhaps the most important factor for consideration here is your personal preference. How big would you want your bedroom to be, for instance? Do you want a small, cozy nook for your study or work area? Finally, how large is your family and how many bedrooms will you be needing, for kids and adults in the family?