QUOTE(beast_doadore @ Apr 22 2011, 04:20 PM)
so rm2.20 is cover 2 storey?
what is the purpose to do a 18" access opening?
my contractor calcullate me RM15/FR for the L box due to I have only 40ft long

2.20 for flat ceiling, to ground floor & 1st floor....
18"x18" access opening is install below toilet's floor trap, so that u no need to pecah the ceiling in case any leaking/ blockage of the sanitary piping.
QUOTE(edwardsiow @ Apr 22 2011, 04:46 PM)
Thanks...I will make appointment with Mr Lai as soon as possible...
I found a blog who the blogger engaged Mr Lai for plaster ceiling...
http://day2day-journey.blogspot.com/2010/0...ork-part-6.htmlhe was introduce by a friend, a nice guy & i'm quite satisfy with his work.
at that time i was outstation, so i just passed a set of key to him & he did it without my supervision