I am adding 4 pendant lights over my kitchen counter. The room is already finished, so I need to add 4 round ceiling boxes. The pendants weigh maybe 3 pounds, so I was hoping I could use remodel boxes as securing to joists is not easily accomplished.
Alternatively, I can mount 1/2 inch deep pancake boxes to 3/4 x 4 x 18 in over ceiling drywall with center wire clamp. In both senarios, the fixture is hanging on drywall.
If neither of these options provide enough support, I could used 2x4's to span between the ceiling joists which are silent floor I-Beam style. A short spacer block on each side and screws through the drywall spacer block and support 2x4 would hold it in place. a 2 inch deep box can then be mounted to 2x4. This is obviously more work, but if the experts say it's needed, I will go that avenue.