23 pieces cardboard boxes cut to size
4 pieces of bamboo sticks
old curtain cloth
drilled holes at 4 corners on the surface of cut out cardboard boxes
thread rope (or nylon rope) through, make sure there is ample rope length for tying.
once the ropes are through, tie bamboo sticks as frames for support.
i have saw small slots on the bamboo sticks to increase stability for rope knotting.
using longer bamboo stick as seat back, with ropes as support
sewn up a sock from some very old curtain material i have kept from a long time ago. seat back is complete.