Footing size for two stories extension, footing size for two storey extension
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 Nov 14 2013, 02:11 PM, updated 12y ago
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#1
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Junior Member
210 posts Joined: Apr 2010 
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hi..
I plan to extend my house DS Semi D:kitchen(1st floor) and room(2nd floor). I would like to know recommended footing size spec. base on tom jason, he mention 5x5 size is recommended. I did ask one of contractor,he mention 3x3 is enough since soil is solid. |
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Nov 14 2013, 03:17 PM
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#2
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Junior Member
210 posts Joined: Apr 2010
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QUOTE(yanie2012 @ Nov 14 2013, 03:07 PM) Sorry for asking some information, how to measure the footing 5x5 and 3x3? is it the steel dimension? Haha..i have no idea mate. I guess its the concrete dimension bottom of footing |
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Nov 14 2013, 10:32 PM
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#3
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Junior Member
210 posts Joined: Apr 2010
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Thank for the info..i'm not aware that need engineering to involve..i thought ask contractor come to quote that all n they know the ground condition..or maybe they just estimate or agak2 only on footing spec.anyway my house is at hill area(cut area)..maybe others can share their opinion n expertise as well
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Nov 15 2013, 12:18 PM
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#4
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Junior Member
210 posts Joined: Apr 2010
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Y20 for footing only or need to use for concrete base as well?
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Nov 16 2013, 10:19 PM
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#5
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Junior Member
210 posts Joined: Apr 2010
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Nice to read all of your ideas and opinions.i think get structural drawing from developer is a good idea.however,can we request from developer n will they give it to us?
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Nov 18 2013, 12:24 AM
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#6
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Junior Member
210 posts Joined: Apr 2010
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Wow..lot of information i got..thanks anyway
my house is new house(not subsale) and if not mistaken OC was released in Oct 2011. I guess original structural & architecture drawing,soil condition test,etc still at developer side.Not sure whether they willing to entertain me or not. I'm afraid they feel weird if i request it as if i wanna find some loop hole and sue them..haha. but no harm to request it i think. Basically,I already discuss and request quotation from several contractors..haven't decide it as i wanna study about this foundation issue first... Attached is some photos of my house. 1st picture is rear side. 2nd picture shot is from neighbour side. My house is at low side. This is small hill area Attached thumbnail(s) 
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Nov 18 2013, 03:18 PM
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#7
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Junior Member
210 posts Joined: Apr 2010
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QUOTE(weikee @ Nov 18 2013, 02:32 PM) Did my house slightly over do Weikee, due to budget issue, i might follow as yours.build 1st storey,2nd floor later.however footing n foundation need to follow as double storey extension. So for majlis submission, only submit 1st floor right.2nd floor will be later( maybe 5 yrs later after budget enuf). Told my contractor I need the footing to support double stories (back of my house), but for the time being build one floor first. In future will do 2nd floor. Therefore now I have a double story footing but supporting single floor on the back of my house. Is actually not much extra. |
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Jan 11 2014, 09:30 PM
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#8
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Junior Member
210 posts Joined: Apr 2010
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i manage to get structure drawing from developer...
the footing size are vary base on location. initially i thought, it will be the same for all Attached thumbnail(s) 
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Jan 12 2014, 12:20 AM
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#9
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Junior Member
210 posts Joined: Apr 2010
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QUOTE(stevie8 @ Jan 11 2014, 11:59 PM) Finally you got it Yup,i guess best time is after CNY.base on the drawing,the smallest footing is 500mmX500mm.quite small i think CNY soon can't start reno right away, right?This post has been edited by aviecena2020: Jan 12 2014, 12:21 AM |
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Jan 14 2014, 05:45 AM
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#10
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Junior Member
210 posts Joined: Apr 2010
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QUOTE(Astarguy @ Jan 13 2014, 08:24 AM) If you want a peace of mind, get a qualified structural engineer to produce the drawing. The fee is not that much just a few hundred. After you have the drawing, get the contractor to quote for you and make sure he follow the drawing correctly during construction. That should be the way rather than let the contractor playing the fool on you. Sorry for nob question.how to get structural engineer?any contact?preferable is northern region since my place is nearby penang |
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