Sonoma Extension Table and Trestle Base WH T-4078XA/T-4078XBOverview Our Cosmopolitan Sonoma Extension Dining Table is substantial. It has an 18 inch leaf and a maximum length of 96 inches. That is a lot of real wood. No veneer. No particle board! This table is great for entertaining, parties and large families. The table is 78 inches long without a table leaf installed. The leaf is 18 long. The table top is thick solid wood and the top shape is very unique with its decorative edge. This base is unique and