Browse Forums Building A New House Re: Slab upgrade costs - M class to E class 3Jul 02, 2018 8:09 am Reasonable range? Based on what? Geotech report, bearing capacity, materials Quantities, Builder profit? These are questions you should be asking before you hand over a deposit to the builder as one thing is for certain , the price you receive before, will always be less than the variation after you've given the builder a deposit to start, you needed proof that the initial PS wasn't a stab in the dark or worse an enticement to sign and hand over a deposit The later is a case/complaint for Fair Trading.hth Designer,Engineer (Civil,Const & Envir),Builder,Concrete & Masonry Contract.Struct Repairs I am not sure whether Perth has its own way of doing things in regards to this. Most of Perth has class A (sandy soil), except for some areas near rivers or hills. 2 13099 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 9855 I don’t think so as the floor area over 300 square meters then it is class 3…. 12 17936 |