Browse Forums Building A New House Re: M class soil/clay and drainage 6Jan 25, 2019 10:51 pm Thanks for the references Doozer, I'll get in touch with them. I'm trying to save on site works and am still getting quotes through a building broker at the moment, however it was prompt engineering who did the soil testing and reckoned a civil eng needs to look at it. Rather than it be over engineered I'll try your suggestions. Thanks I've dug some footings to embed a post anchor into. My holes are around 450mm deep which I'll put a 200mm stirrup into. The bottom of these holes seem firm enough. … 0 3348 I donβt think so as the floor area over 300 square meters then it is class 3β¦. 12 17958 The Soil classification has little to do with piers. The purpose of the classing of the soil is to identify the clay content and the "average expected range of movement… 2 9888 |