How to make a large regular origami chair

(page 12)

21th picture of large regular origami chair

21.

Apply two flat-folds of the step #20.

Prepare to apply two "valley-folds" and then unfold.

22th picture of large regular origami chair

22.

Apply two "valley-folds" of the step #21 and then unfold.

Prepare to apply four "valley-folds" and then unfold.