Browse Forums Building A New House Re: $36K site costs for P class soil 11Mar 28, 2020 10:05 am Hi home135 Thanks for the soil report That is a standard blanket report but It doesn't indicate where the extra over costs are? For that you will require the preliminary and final Engineering details translated to your unique design. There are footings on your original quote ie, A,S,M? you'll need to work out the extra costs involved upgrading Slab and formwork Costs On average say there is 40m3 of concrete in a house ( see eg above) The base material concrete costs say $200/m3 Therefore, 40 x 200 = $8K + reo + forms + labour +pump You need to ask the builder/engineer where's the extra $36K going? In a nutshell the building contract says pay up or pullout... unfortunately some Sales reps/builders don't give you that information up front as it spooks potential clients So now you will need to scrutinise the above data and costs and negotiate with the builder if he wants your business OT you would have been better off financially if you sorted this out before you handed over a deposit for the preparation of plans (PPA) Cheers Chris Designer,Engineer (Civil,Const & Envir),Builder,Concrete & Masonry Contract.Struct Repairs Re: $36K site costs for P class soil 12Mar 29, 2020 10:20 pm why don't you ask your builder for timber floor on stumps? Foremost Building Expert in Australia,assisting with building problems/disputes, building stage inspections,pre-contract review advice for peace of mind 200 blogs http://www.buildingexpert.net.au/blog Re: $36K site costs for P class soil 13Mar 30, 2020 8:40 am We had a H1 soil classification and class P site (it was a knock down rebuild, which is always a P as they can't really do a full inspection). Our site costs at the contract stage were $35K, ended up being a few thousand less as they didn't need to go as deep with the piers as they expected. Our site costs were provisional, and were broken out into different categories, which is what I would expect any builder to do. i.e. Piering - $6250 Sewer - $4250 Stormwater - $4150 SL92 Reo - $2000 Re: $36K site costs for P class soil 14Mar 30, 2020 11:15 am I agree items should be broken down and explained. An observation on rebar upgrades All house slabs have mesh be it Sl82, Sl92 check the codes, upgrades from say SL82 to SL92 Reo mesh Costs are online $100-$80 = $20/m2 (Shop around builders buy it much cheaper) the cost for labour is included... I am curious as to what else is included in the $2K Also I do recommend that the Piers/Piles be properly checked on site here Checking concrete Piles with BOSCH Laser + App Cheers Chris Designer,Engineer (Civil,Const & Envir),Builder,Concrete & Masonry Contract.Struct Repairs Re: $36K site costs for P class soil 15Mar 30, 2020 12:14 pm I don't know if it was 2K that was just an example... I didn't have the cost schedule handy, but remembered the other figures because I only received the final bill for those items a couple of weeks ago. I don't know about most builders, but mine wanted me onsite when the piers were done and we measured the depth of each one and cross-referenced them with the engineers plan. Only once the engineer and I signed off on the measurements was the concrete poured. Re: $36K site costs for P class soil 16Mar 31, 2020 11:00 pm StructuralBIMGuy Hi home135 Thanks for the soil report That is a standard blanket report but It doesn't indicate where the extra over costs are? For that you will require the preliminary and final Engineering details translated to your unique design. There are footings on your original quote ie, A,S,M? you'll need to work out the extra costs involved upgrading Slab and formwork Costs On average say there is 40m3 of concrete in a house ( see eg above) The base material concrete costs say $200/m3 Therefore, 40 x 200 = $8K + reo + forms + labour +pump You need to ask the builder/engineer where's the extra $36K going? In a nutshell the building contract says pay up or pullout... unfortunately some Sales reps/builders don't give you that information up front as it spooks potential clients So now you will need to scrutinise the above data and costs and negotiate with the builder if he wants your business OT you would have been better off financially if you sorted this out before you handed over a deposit for the preparation of plans (PPA) Cheers Chris Very helpful.. thank you structuralBIMGuy. Re: $36K site costs for P class soil 17Apr 13, 2020 4:33 pm What is not considered by StructuralBIMGuy is the cost of cut and fill excavation, soil removal or new soil, compaction, etc. Reo, concrete, poly, concreters labor, pump won't cost a fortune, indeed. Also, concrete is way over $200/m3 if your are in NSW. Re: $36K site costs for P class soil 18Apr 13, 2020 8:27 pm Just ask for a breakdown of the costings, review it and ask if the builder can get another couple of subby quotes. If it is fair and reasonable then move on and get cracking. Registered Building - Always happy to help where I can and simply loves the game. DM me if you need help in VIC. 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 We were lucky in that our old house was so small (86 square metres) compared to the new house, they were able to take enough readings around the old backyard house before… 8 36896 PM me your email. I have a build excavation calculator you can use based on your plans to double check what your builder is telling you. Cheers Simeon 1 10169 |