I'd just use silent coat if it was me, only a couple of mm thick and really quietens it downHi. I was wondering what product people are using to put under the ply floor? Something that has some insulating properties and sound deadening but also is not too thick! What are peoples thoughts? I've spoken to Sound deadening shop and they have recommended this...
Dodo Pro Van Floor SWB Pack
just seems a little pricey...