Browse Forums Building A New House 1 Jun 21, 2012 10:17 pm I have been told that my block has been classified as M* - Moderately Reactive/filled lot So would this mean I require a M class slab? I have a H in my tender so obviously an M would be cheaper. Also if the block is OK for an M class slab is there any benefit of maintaining a H class slab? Re: Block Classification - Class M* 2Jun 21, 2012 10:24 pm A higher classification of slab is going to have less risk of causing you problems down the track. Building a Delta 21 at Craigieburn - http://homeofzero.blogspot.com.au/ Deposit: 26/02. Contract: 22/05. Settlement: 29/05. Site start: 18/10. Re: Block Classification - Class M* 3Jun 22, 2012 7:11 am I had a soil test come back at M class slab with MJH, we then had another one done by Rawson homes and it came back as an H class slab. Both tests were done within 6 metres of each other. Our whole suburb is clay and anyone that I have spoken to has said it is an H slab. We have gone with the H class slab as we have been told that it is going to be a thicker slabwith more steel and less likely to cause us problems in the future. The house we are building is 42 squares and double storey Modified Fernside 38 Rawson Homes Blog: http://www.thehousethatmatandjenbuilt.blogspot.com Build Thread: https://forum.homeone.com.au/viewtopic.php?f=31&t=60501 Re: Block Classification - Class M* 4Jun 22, 2012 8:35 am Jen1977 Both tests were done within 6 metres of each other. Eh? A block size bigger than about 5x5m is going to need multiple samples. There are rules and standards for how many samples you need to do for every xm^3 of dirt. The same applies for when you're sampling dirt for chemicals etc. Building a Delta 21 at Craigieburn - http://homeofzero.blogspot.com.au/ Deposit: 26/02. Contract: 22/05. Settlement: 29/05. Site start: 18/10. Re: Block Classification - Class M* 5Jun 22, 2012 2:57 pm I'm thinking just get the H class, that has been budgeted for anyways. Don't think you can have issues using a Higher Spec slab.... 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 12979 I don’t think so as the floor area over 300 square meters then it is class 3…. 12 17885 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 9815 |