Hi, I am trying to level a concrete floor that is out by up to 20mm.
I have found a couple of products that say that they will level from 0 to 20mm. But, for depths of over 5mm, you need to mix it with 3mm granite chippings. I have only been able to locate these chippings in Scotland or Suffork. Does anyone know a stockist in the Surrey / South London area?