The Best Average Dining Room Size Background. The list of typical room sizes shown below should be used only as a guide for general planning purposes and to determine overall square footage of a proposed plan. This isn't problematic because there shouldn't be too much circulation.
The dining area should be large enough to hold the table and chairs you find appealing.
The average american home is 1,800 sq ft. A dining room is a room for consuming food. This guide shows average room sizes for australian homes. Shapes and sizes of dining tables, chairs and furniture need to be considered so personal movement is not impeded when the room is fully in use.