Hi I wish to put in a false ceiling which will have no load on it other than its own weight and 2 layers of plasterboard.
The span of the room is 4.0m
Having looked at numerours tables, it seems as if i need the joist sizes to be
170x50 .
If I supported the joists at the middle point from the existing ceiling could I use 97 x 50 or 122 x50 instead
Thanks in advance
John
The span of the room is 4.0m
Having looked at numerours tables, it seems as if i need the joist sizes to be
170x50 .
If I supported the joists at the middle point from the existing ceiling could I use 97 x 50 or 122 x50 instead
Thanks in advance
John