A: There are two, one a CarlonBH234R, and the other (Home Depot doesn't list a brand, but there is a part# R9329-EWK on it). There is also an old work/new work Carlon, - Don't quote me on the part# but I believe it is B234ADJC. In any case, all of this is available on the Home Depot website, when you look up work boxes in their electrical menu.
A: Probably not. You need a Suspended Ceiling Brace to span the 2 studs in the wall closest to the location of your light fixture. The brace has teeth that attach to the studs but you should also nail the brace to the studs. You can change the box on the brace to fit your light fixture.
A: Unlikely, as this stays in place by using a screw to clamp small pieces of plastic on the drywall in two opposing corners. Revealing more drywall and locating a new work box on that stud would probably be best.
|Name||2-Gang 25 cu. in. PVC Old Work Electrical Switch and Outlet Box||3-Gang 44 cu. in. PVC New Work Electrical Switch and Outlet Box||1-Gang 4 in. 20 cu. in. PVC New Work Electrical Ceiling Box with Large Hanger Bar||2-Gang PVC Old Work Dual-Voltage Box/Bracket|
|Packaging Type||Consumer Packaging||Consumer Packaging||Consumer Packaging||Consumer Packaging|
|Box Type||Wall box||Wall box||Ceiling box||Wall box|
|Trade Size (in.)||Other||Other||Other||Other|
|Number of Gangs||2||3||1||2|
|Number of Knockouts/Pryouts||1||0||0||0|
|Durability||Corrosion Resistant, Rust Resistant|
|THD SO SKU||321532|
|View Product||View Product||View Product||View Product|