Draw your first arc on what will be the top of your rail. You should only have to trace this once for the outside. If your jigsaw can handle it, cut both boards at once.

This first arc will be the overall size of your table. If you plan on down-sizing your table, do so here. You’ll be using this outside arc for the measurements for the rest of the table.

To draw the arc, I made a makeshift compass. Basically, find the center of the board near one end. Nail or screw it in (don’t worry, we’re cutting the middle out and discarding it anyway). Use a pencil to draw the arc.

Now that we have the outside of the rails cut, now we need to cut out the inside. Note, one will be wider than the other as it will rest on top of your racetrack.

I went with 3.5 inches for the width of the top one, and 2.5 inches for the bottom. Use the homemade compass to make your arcs again. Use your compass again to draw the arcs. Use a drill to make a pilot hole for your jigsaw.

Remember, all of these edges will be unseen so don’t beat yourself up if you mess up.

(the cup holders were just mock ups… we will actually be discarding that piece)