Standard Sizes:  

We recommend a 5"- 6" fabric drop on both sides of the table.
In case of not finding the standard size matching exactly to your needs, you can always opt for a Custom made table runner to fit your table just right. 

How to measure your Table runner:

Use a measuring tape for accurate measurement. Measure the length  one corner to the other. Add 10"- 12" to the measured length, based on preference to get a good fabric drop. The final number is table runner size you need.