ScenicART t1_ixdo5wc wrote on November 22, 2022 at 5:40 PM

I'm also in a NYC apartment. i dont even bother with plastic expansion anchors and use these ive hit everything from cheap gypsum board to plaster and metal lathe. these seem to do the trick almost every time. for masonry use the zinc planted expansion anchors. theres been a few times where i cant find a stud and the drywall /plaster is of such shit quality nothing sticks. i patch these walls up and go ground supported for those areas.

ScenicART t1_ixdohro wrote on November 22, 2022 at 5:42 PM

to Add i think NYC fire code dictates double gypsum board to hit a minimum thickness for retardancy. could be wrong but thats why youll sometimes hit two layers of drywall.