Sorry, I am not sure about you layout, dimensions, etc. Are you planning for a ceiling fan?
So, cannot comment.

Okok, I will try to upload the floor plan when im back home

Updated. Please see the floor plan for my living room as below:



The yellow color box representing lightbox and the middle one is the downlight. Please comments.

This post has been edited by cvshi515: Nov 5 2011, 11:57 AM

Don't think one ceiling fan would be sufficient. Unless you are planning of using AC.
BTW, is this a condo/ apartment?
The nos of downlights and its position are definitely not sufficient for reading.
The lengths of your lightbox looks odd. Why not both the same length?

Recently have a discussion with another plaster ceiling contractor, he mentioned that for the plaster ceiling steel/alu rod which is used to hold the plaster board, standard distance in between each rod is about 18", he also told me that if the distance is too far, the plaster ceiling will have the curve wave and hard to install. Some contractor will reduce the cost of material by increasing the distance.

Do you guys think this distance is standard? because I didnt see any discussion about this

Last time is 16" or less, now is 18" or further because using thin board and also the metal are thin too.

icic, the 18" he told me is for 9mm board , wow 16" really a lot of difference if compared to 18"

Even 9mm, material is difference. The board is lighter now.

icic, bro weikee, u r one of the sifus here Because u know everything

This post has been edited by leeyung: Nov 5 2011, 10:23 PM

This one plaster ceiling guy told me mah

Me is just a "Jack of all trades master of none".

This post has been edited by weikee: Nov 5 2011, 10:45 PM

Yeap, planning to put an AC at the entrance. This is a single storey house . The length was diff due to the available wall, the shorter length side has the walk way to the common area and other room .

So what do you recon? I need more down light at the center?

My initial plan was to have 8x down lights to cover the entire living room. But my concerns is that the 8x of down lights may not be bright enough. Which is why i go for the light box that tend to be brighter than down light.

Hai
anyone have any contact that doing plaster ceiling and wiring as well.

Currently what is the market price for:
-Plaster Ceiling psf?
-L.Box Light Trough psf?
-Down Light Wire Looping each?
-New Point each?

I would reckon that it is the reversal. The down lights which are direct lighting would be brighter.
Was the layout for the living & dining area? 1st, you should establish the ceiling fans locations.
I believe there should be a ceiling fan at each locations. Living & Dining.
BTW, since yours is a single storey, it would be warmer, thus the fans are important.
After you have establish the positions of the ceiling fans, then have the down lights around it.
Taking into consideration the shadow created due to the moving fan blades.

Guys what you think of this quote I got from Plaster ceiling guy called Ah keong from cheras? Note that most of the plaster ceiling steel/alu rod which is used to hold the plaster board is beyond 2 feet coz my ceiling is very high. Thanks in advance

MASTER ROOM
Ft Price/ft Total Amount (RM)

a) Ceiling 165 2.50 412.50
b) L-Box Light Holder 70 13.00 910.00
c) Curtain L-Box Light Holder 11 13.00 143.00

SMALL ROOM (BEHIND)

a) Ceiling 90 2.50 225.00
b) L-Box 38 13.00 494.00

LIVING HALL

a) Ceiling 266 2.50 665.00
b) Staircase step 78 15.00 1,170.00
c) Curtain L-Box Light Holder 14 13.00 182.00

2nd LIVING HALL

a) Ceiling 121 2.50 302.50
b) L-Box Light Holder 22 13.00 286.00
c) L-Box 4 13.00 52.00

CARPARK

a) Ceiling 319 2.50 797.50
b) Fan L-Box 24 13.00 312.00

Others ceiling 555 2.50 1,387.50
Fan hanger 9 15.00 135.00

TOTAL 7,000.00 (discount fro RM7474.00)

This post has been edited by scouser7: Nov 6 2011, 03:29 PM

I see, so which mean the down lights would be a better option in term of brightness ya. The layout that I posted was for living room only. Dining area will have its dedicated ceiling fan .

Great advice! I will take note of the flicker effect by the fan blades.

The living room looks long. Don't think one ceiling fan located in the middle of 6.8m (22') will be sufficient to cover the whole length. You may want to take a look at this first before you plan out your down lights.

Good luck

Yeah, the living is kinda long. Ok, I will re-evaluation the number of fan required. Besides, I am firmed on putting in downlight in my living room. Instead of putting 8 of them, I will put 10 down lights: P. I am sure it should be bright enough this time.

Just curious, is there any calculation of positioning the ceiling fan distance away from the down light to avoid flickering?

The general answer seems to be
"at least more than 2 feet away from the blade edge,",
This is the answer I got so far either from shop assistant, my contractor or forum members.
Nobody has given any more specific answer at the moment.

2 feet should be the general guide. However, it will depends on the length of the metal rod used to suspend the fan from the ceiling hook.

I just renovate my house. If you are interested, I can pass mine contractor number to u

Bro weikee, interested to see your ceilinglah. Have you posted photos before? If not, can post?