Extrude a curve


I’m new to Rhino and I’m trying to extrude a curve only on the underside, it needs to be like the photo of the wood table, and the top side needs to be straight because it is supposed to be a table. The top view of the form is an organic shape.

Does anyone know what can I do?



this will help a lot.

draw your curve, then extrude, to get the table top and side lip, then make a copy of your curve and scale it smaller, then loft the edges together to get the tapered sections.

you can get help from any command by picking the tool or running the command then hitting f1.