Begin with your actual table
Record the table and chair dimensions, then sketch the arrangement with people seated. Include the movement behind the chairs and the place where someone approaches the table. A patio that fits the furniture when it is empty may feel different during a meal.
Trace the trip from the kitchen
Think through carrying dishes from the door to the table and returning inside. Show door swings, steps, a grill or serving counter and the route to the rest of the yard. Keep frequent movement out of the middle of the seating arrangement where possible.
Choose one everyday arrangement first
Design for the way you expect to use the patio most often. A smaller daily table with an occasional hosting arrangement calls for different choices from a large permanent dining set. Bring both layouts to the design conversation if both matter.
Connect the setting to the house
Compare the dining area with the view from indoors, shade at your usual meal times and the proposed lighting. Landscape Charlie can discuss a footprint that brings those choices together with the site and adjoining surfaces.