Shaping the wood. Option 2 - By grid plan
The grid plans below show the drawings scaled in a grid where the line spacings represent 1" (25mm).
To create a full size pattern, draw a grid onto cardboard with line spacings 1" (25mm) true size.
Then copy (draw) the shapes below, onto the cardboard using the grid lines as reference points.
Cut the patterns out of the cardboard and use them to mark the chair pieces.