You'd like LARGE. But usually we don't have the space.

You might be able to hinge a large chart table down from the cabin
overhead. The table itself can also fold, and if the fiddles cause it to
form a box when folded, it can contain a number of charts laid flat on
top of each other. If you are, or can get, accustomed to desk work
standing up, you have more options on where to hang a folding char
table. This will work best if the mechanism is simple and fast, so it's
possible to pull it down in a second for a quick check, then immediately
push it back up out of the way. Life will also be better if the chart
table does not interfere much with the galley...

Rufus

Adam wrote:
Could you tell me what is minimum chart table size, what practical size ,
and what is overdone.
Any web address about that - How To?
Thanks in advance
Adam