bobbertmiller
bobbertmiller t1_ixdhtp7 wrote
Reply to comment by DogRiverRoad in How to mount something safely on a wall of unknown material? by zeurydice
It's really a multi purpose anchor. It'll expand differently, depending on the cavities. It can either just spread in a solid wall or it can bunch up in a cavity.
bobbertmiller t1_ixcuhou wrote
Reply to comment by zeurydice in How to mount something safely on a wall of unknown material? by zeurydice
Are expanding plastic wall anchor ls not a thing in the us? This is my go-to for everything, everywhere.
bobbertmiller t1_ixdkbuj wrote
Reply to comment by zeurydice in How to mount something safely on a wall of unknown material? by zeurydice
I was just linking the German stuff because I didn't know what's common where you live. I really like Fischer and have used them exclusively now (and they are easy to come by, me being in Germany).
/u/calcium has linked the chart already, but for gyspum board you're basically limited by the material. I'd use a 6x30 or 6x50 for a single sheet. I prefer more holes to bigger ones in Gypsum, because you need to spread the load.
If you have a solid wall, even a shitty porous one (had old, loose, sandstone once) you want a long dowel so the load is as far INSIDE the material as possible. That way, you won't blow out the surface. Sometimes you have to lock the dowel in position, so it doesn't rotate before it starts expanding.