Hello! A basic rule of thumb is you want a min of 3'6" from the edge of your dining table to the wall or another piece of furniture to allow for pushing your chair back and space for someone to move about. If you don't need an area behind the chair for people to walk around then really you only need 2'6" from the edge of the table to the wall to allow for the chair to be pushed back only. So, if you are putting the 76"l + 17" server along the 15' part then yes you will have just enough room and it will look great!