Hi all,

I have planned to extend my wet kitchen. The area to extend is 18' x 5'.
The problem i facing now is do i need piling or not for single story 18' x 5' area.

My neighbor is extending his wet kitchen also. His contractor told him that the soil in our housing area is soft. And need RC piling to do extension.
If not , the wall will crack since the house will sink for a period. He also claimed that even use kayu bakau also cannot stand for it.

But the problem now is another contractor that i meet up, he told me actually no need pilling, using large footer then already can extend the area.

One of my cousin also is working as contractor, but he is not working in KL area. He also claimed that have no need piling for just 18' x 5' area.
If i worry about the sink, use thicker steel + larger foot is good than enough for it.



So i hope you all can share your experience to me.

Thanks a lot for your advise. Appreciate all the comments.

Do you plan to extend the 1st floor in a later date ? If you do, then you will need piling.

Else, a 3' x 3' x 4'D footing will do with a cross foot beam.

I did not plan to do 1st floor. Just ground floor with roof. So Is it means no piling needed? Thanks.

theoretical answer is do a soil investigation...

Best is have piling.
But key issue is also do ur current house hv piling?

If house sink but ext no sink, ur house still will crack...
The effort to attach ur house base and ext also inportant...

I think should have since my house is DS. If need , does i need use RC piling? Since my area only 18 x 5.

Thanks

Don't think is necessary

Is your front and back have many heavy vehicles passing by or not? If YES and no pilling will have high risk of crack.

I think would not have many heavy vehicle passby. Since that is residential area.

Mine did not do piling, just stronger footing. Because I told my contractor i need a base allow me to have 2nd floor in future. Sometime is good to overdo a bit

In most ground floor extension, no need piling. Footing is sufficient

Do a on site Soil Investigation like Mac Probe, one point only cost you few hundred, but it would mean a lot to justify the bearing capacity of your ground....

If diff to arrange, check what's your existing house footing design, best is for you to follow back, so that your extension can have a similar settlement as your current house...

Cracks always occur when there's differential settlement...

If your house new or old? Isit still settling? If you install pile and your current house still settling down (which I'm not sure), then crack would likely occur also...

Regardless of soil condition, for single storey extension it's illogical (read MAD) to be founded other than RC footing.
Piling will not only damage yr existing house but neighbours' too.

Where to get ppl that can do soil investigation ?

My house is new. Not sure is it settling. But just hear contractor told me that my house area's soil is soft.
Need RC piling only can prevent crack. Even Kayu bakau also cant prevent the crack. And the crack will continue happen non stop if use kayu bakau.

Ya. I also told by other contractor that piling will damage neighbour house.
But using grill to piling that is ok.

My cousin told me that using bigger footing and thicker steel is more than enough for single storey extension.

Just that 2 contractor whose renovated a lot my house area claimed that only RC piling can do for extensions.

can tumpang ask? I'm also planning to do a 20 x 12 extension for kitchen... need piling ka?

my contractor told me he will hack the existing double storey wall, then sambung the new footing with the existing double storey footing so that it can be more tahan. Does it work that way? piling expensive la...

If is just ground floor extension no need piling

Then no need to do pilling.

I'm planning to do the same wet kitchen extension for almost the same size. How much does it costs you?

Same size with me ? 18 x 5 ? Contractor that quote me use RC piling is RM35,000 for single storey extend.

reading up till now I think a raft foundation would be enough.

but if you have the time, better consult structural engineer who will in turn engage and supervise a geophysical engineer who will conduct a good soil test.

Judt to add on to the topic... if is rc footing what is the thing that need to watch out?

The soil condition

M2c. Don't think u need piling. M2c.

18'x 5' no need piling. Just get a raft foundation done. 18'x5' will be a separate independent structure, no need to tie back to main structure.

You can use alternative way to reduce the extension weight by using steel structure as frame, light weight bricks for walls.

I also wonder how the contractor install the RC pile? bringing the pilinng machine into the site?

Yup, its a smaller pilling machine than those use in construction but the sound and vibration is deafening.

Crack some of the neighbor wall too (adjacent one) those across the street is okay.

Hi,
Would like to ask related question to this.
My house extension is as below. The areas I marked with yellow will be double storey extension, the others are not, but will support RC slab. Contractor plan for piling at point A, B and some other points further away. Problem is, neighbour has kitchen extension that is next to point A( he didn't do piling). I am worried piling will cause cracks in my neighbour's wall. Contractor says he will do cantilever from neighbour's footing pad. But I am still worried. Can I get away with not doing piling for point A, only wide footing?

'B' also no guarantee your house or neighbour's house wall wont crack.

Doesnt matter neighbor have kitchen extension or do piling or not ... when you whack that pile in ... KLF your neighbor wall will have crack.

Since its just an extension with rc slab, footing it self is enough, A + B. Number 4 how ? Pile ?

From B to number 4 is around 14'+ which is quite a distance.

What is KLF?
Between B and 4, there is another piling point. There is soil settling in the region, as the car porch area also had some tiles issue. So contractor gonna go ahead with piling (with cantilever at point A). I am just praying the damage, if it does occur, will not be major.

My bad. KLF (KonLanFirm)

Cantilever @ A souldnt be a problem since just a rc slab on top provided not going to be future 2nd floor there.

Piling between B and 4 will effect your neighbor ? depends on pile size, depth and luck.

Have you inform neighbor you gonna do piling ? Cakap dulu (baik baik) inform if there is crack please let you know and you will get contractor to repair and repaint.

Thanks for feedback. Have already discussed with neighbour. Explained that we will fix if any damage occur. Pictures also taken of inside and outside his house before piling.

most probably your contractor using bakau pile and an A frame rig. Else use traditional method with 2 workers jumping on it. I would be more concerned with 1a - 4 as that has double storey. my usual concern is if using bakau and water table is low, it rots easily without water. Expect to have cracks on walls as secondary settlement occurs. Best you take picture of your neighbour's walls (their side) before commencing work to avoid future dispute since you promised to fix damage. FF to 6 is cantilever so most piling would occur at FF.

Edit: if using bakau make sure at least min 3" uniform throughout length. nowadays hard to find 4"

This post has been edited by CRaider2: Jul 30 2020, 12:00 AM

.

This post has been edited by Dfuzzy: Aug 15 2020, 06:59 AM

This is double storey house. I plan extend until End of toilet in 1st & 2nd floor. Estimate about 4 feet. Does this still require piling? Is footing is enough? Anyone does this?

Better to seek advise from a qualified person upon site inspection.

No thoughts of extending to the boundary ?

No thoughts of extending to the boundary ?
No. I have a plan with backyard...just that small space botering me.. so wanna make it useful by extend.

It will be costly if i need add piling just for the small space extension.

At the back of my house already has a brick wall. My contractor recommend that he can just up the steel frame (similar to this photo) and fill with bricks before top the roof with roof tiles. My size of extension is 22x5ft. Is this advisable over concrete pillar?

5 feet depth length Roof tile is not really heavy. if wall crack is your concerns just ask your contractor install a row of ground beam just below the new wall.

This post has been edited by utellme: Oct 15 2021, 03:15 PM

Yeah with 3 RC pillar is 18k with without roof. With the steel bar frame like in the photo 10k.

Actually I didn't engaged any contractor yet and I don't really know what is the renovation cost per sf now. But I did asked one of the Indonesia contractor who just started renovation my neighbor home and he said about RM200 per sf if normal tile roofing and additional RM30 if RC roof. This cost is only covered RC structure , brick wall, door , windows, concrete top, paint, internal floor and wall tiling. Wiring and plumbing work is not included. My extension area is 160sf there for about 32k to 36k.

I’m getting about 260persqft for Roof tiles, extension wall, floor tiling. Not including wall tiles, electrical and doors/windows. Using SIRIM approved rebar

This post has been edited by JasonTheGreat: Oct 20 2021, 10:40 AM

I guess this quotation from chinese contractor.

Is this over priced? Yeah. Cinis contractor. Is this over priced?. I’m okay with either Malay or cinis contractor as long as they gives good workmanship.

What’s the difference between CIDB registered and non contractors? Any warranty from CIDB contractors?

This post has been edited by JasonTheGreat: Oct 20 2021, 11:20 AM

not sure it's over price, because I only engaged one malay contractor who recommended by someone in the condo management to do some kitchen and bathroom renovation work for my apartment is KL after my previous tenant moved out but the workmanship not so good that is why I didn't ask him to quote this house renovation plan. Usually cinis quote slightly more if they have good Indo skill worker with them.