How to build a one-piece
folding picnic table out of 2x4 lumber
Step 2. The round cuts
Make a card template for the round cuts and bolt holes.
Using a compass draw a circle with a diameter of 3-1/2" (88mm), which is the width of the wood.
Cut out the circle and that is your template.
Using the template, mark and cut the round shapes on pieces [a], [e], [f], and [g] as shown in the pictures below.
Each pair should be a mirror image of one another.
The middle of the template will mark the center of the bolt holes.