I am planning on building a couch tray table. The couch's end tables are Mission Style. I have read several articles on Mission Style and have a good of the elements. What I haven't found any info on is 'proportions'. I understand the Golden Ratio concept but that doesn't provide any help here. The end table tops are almost twice as large as the couch table so I'm specifically wondering about sizing the couch table's leg thickness, aprons, and, slats so they are proportional.
Would appreciate any help. Thank You.