We (Sheffield) have used push-fit piping with shock-cord running through the frame making it easily collapsible. They are a bit lightweight though.
Same idea really, just use fatter glue together stuff and not bother glueing some joints. Just drill and pin those fittings/tube. If lightness is an issue the tubes sat on the deck could be packed with sand or something and plugged so it the packing stays put.
Same idea really, just use fatter glue together stuff and not bother glueing some joints. Just drill and pin those fittings/tube. If lightness is an issue the tubes sat on the deck could be packed with sand or something and plugged so it the packing stays put.