I'm anupong from UBM who is the organiser for FIA2016 show, I already received the design from exhibitor, so the backwall is higher than us permitted we allowed only 3.5m(H) if you need to build the structure is highter than 3.5m(H) should be setback from neighboring stand 1 m. and then i found the design are using driedgrass ? if yes, we concerning when an air condition are opened dried grass will away from their booth. and will disturb an another booth.