How to build a kids' 2 in 1 bench & picnic table
Step 1. Make a template for the rounds and bolt holes
Six framing pieces need to be drilled (for the bolts) and rounded at one end.
Make a template to mark the rounds and the center of the bolt holes as follows...
With a drawing compass make a circle on a piece of card with a diameter of 45 mm (1¾") which is the width of the framing pieces.
The hole in the center made by the point of the compass can be used to mark the center of the bolt holes.
Cut out the circle and use it to mark the rounded ends and the center of the bolt holes on the relevant pieces.
The sequence of pictures below give a visual idea of the procedure.