The sign "table" simply shows a flat top. This sign can also mean "desk." You might see "DESK" using the letter "D" on the dominant hand during this sign (initialization).
TABLE:
Here is an initialized version of the sign for "table."
Warning, this initialized version is not generally considered ASL.
That may change in the future if more people start using it, (time will tell). I see it used here and there so I thought I'd include it just incase you come across it.
If you mean "table" as in a chart or graph then see: SCHEDULE
See: CHAIR
Notes: