I just moved into a pre-war apartment in the Upper West Side, New York. I'm trying to install some wall shelves.
I don't know anything about the construction of this building, so I'm learning about it as I go. It's been impossible to find studs near where I need to mount (have yet to find a stud using a density or magnet stud finder), so I've resorted to anchoring in the "drywall".
After drilling a hole, I see that the drywall is over an inch thick, and after 2 inches my drill bit is hitting the building's stone exterior.
I'm not sure what kind of hollow wallboard this is. After some research, it sounds like it is probably lath + plaster, but it doesn't flake or crumble like plaster though. Either way, it is about 1.25 inches thick and doesn't give me enough room in the back for a toggle anchor to open up.
The question is: How do I appropriately anchor these shelves into this wall? Is there a type of anchor that supports thick walls like this, will support the weight of the shelves, and doesn't need a lot of space in the hollow part of the wall?
- Dimensions: 36" long, 5.5" deep.
- They'll hold no more than 50lbs, most likely much less. Planning to put plants on them.
- Shelf Brackets: 2 brackets wrap around the ends of the shelf. 2 screw holes per bracket. Image here
Thanks for your help!