Browse Forums General Discussion 1 Mar 23, 2010 9:46 am We've got a structural engineer coming out next week for construction design of a rear extension of our existing house. Apparently the new part can either be a concrete slab, or bearers/joists on footings (as we have adequate ventilation) but I have no idea what the cost difference might be and the engineer said the concrete would be "somewhat" more expensive. The area is approx 80sq m. We much prefer the feel of concrete, although the rest of the house is bearers/joists so that would be ok. Does anyone have any idea of what costs we might be looking at, or how I might find out? (Don't exactly have a whole bunch of builders in my phone!) I don't even know what a slab would cost! Also - any benefits of either option? Thanks. Re: Concrete slab vs bearers/joists/footings 2Mar 23, 2010 9:53 am We're going through the same thought process. We wanted steel frame but it's proving to be VERY expensive so now looking concrete. We're also only just high enough to do bearers and hanging joists. A lot of ppl that don't have enough height seem to go concrete. We're still waiting on pricing though.... Built Liberty 42 - Handover 26th Feb 2010 forum thread: https://forum.homeone.com.au/viewtopic.php?f=31&t=17243 Re: Concrete slab vs bearers/joists/footings 3Mar 23, 2010 11:05 am wordsalad - difficult to make a guess without detail of the design, but 80 sq mtrs would be around $12000. That is for conc, mesh, plastic, chairs, placement, but doesn't include site works. Where you are coming from is where you are going to... Hi All, about to commence a bathroom renovation and need some advice on subfloor works. Current subfloor is hardwood T&G floorboards on 90x45 joists, but intention is to… 0 4408 Thanks for all replies. I just noticed now the pictures I added to post right on top of page were wrong. I attached pictures showing "current" and my "suggested" floor… 9 11906 Houses have been framed on floor joists since settlement, chipboard flooring is only around for 50 years or so, so why would it not be satisfactory? However exercise skill… 3 11353 |