Assess the size of your dining room: Your dining room size will dictate how large of an area rug you should use. Large dining rooms may need to utilize two or more area rugs based on multiple seating areas and tables. For smaller dining rooms consider using one that is larger than your dining room table, but smaller than the perimeter of the room. For those that have hardwood flooring, a border of the contrasting resilient flooring makes a nice contrast.
What’s the shape of your dining room: While most would think a rectangular carpet should go in a rectangular room, there are often exceptions. Area rugs can take their cues from the space as well as the shape of the table that covers it. It is often a play on form and color when choosing the area rug. Decide what feels and looks right to you. Your dining room is your design preference and trends and design can be followed or broken.