Join Date: Apr 2016
Location: Troy Michigan USA
Weyneh, Since the panels are only 19", I don't see a need to tong and groove the length. It should be plenty strong with the ends tenoned. You may consider easing the edges and pre finishing prior to assembly though. If you find that the top needs extra support, you can always add cross supports to the lower frame of the table.
Woodworking is like wetting myself....Only I know that warm feeling!