I'm going to install a newly purchased ceiling lamp in our likewise new kitchen. It seems that there is no joist in place where we want to hang our lamp. Can I attach the lamp directly to the plaster? What technique/screw/plug should I use for it to hold? Does a metal expander work? Universal plug? Something else?
/Jonas
/Jonas
A gypsum ceiling normally has a sparse panel with 300 mm center-to-center spacing above. If the sparse panel is 70 mm wide, then there are "gaps" of 230 mm between them. You thus have a decent chance of hitting the sparse panel and using a regular wood screw (hook). Otherwise, I would suggest a molly anchor, then you’re sure not to get the lamp on your head 
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