blow up the dinghy and carefully make a cardboard template to fit. you may have to stick bits together.
let down and remove.
use this to make floor from marine ply.
cut the finished floor as required to get it into dinghy (if required)
or into pieces for easy transport/storage. using old seat belts sewn through slits which you will have to cut in floor to make hinges.
several coats of varnish before fitting webbing hinges.
vic, October 2012