how to level ceiling with furring strips

[jbuk]

I need to level off the joists with furring strips , theres gaps of around 5mm in between some of the joists

Ideally id like everything flat ,not too fussed if it slopes a little

I have some 50x25mm strips , what is the best way to level everything off so I don't have a wavey ceiling?

How many screws would I need on each fixing point?


Or Should I just screw the strips on and not bother with levelling? Am I being too fussy?

 

[tombodge]

im very interested in this. Upstairs in my house i sistered all the ceiling joists but that was because they where also sagging.


Downstairs there big joists so Id like to to find a easyer way around it. As you say I dont know what how far you have to go with tolerances ect

 

[clive12345]

Hello,
With ceilings the perimeter has to be straight .
5mm between the joist might be seen .
If you are getting in a plasterer , ask him .
He might suggest bonding out the ceiling .