Dear Andy: This is an excellent idea for adding lighting and a fan to a room without access to existing wiring. Even if you did not need access to electrical wiring, adding box beams can be an ...

Fill in the blank. When installing a luminaire that weighs more than _____, the luminaire shall be supported independently of the outlet box, unless the outlet box is _____ for not less than the ...

A UL-approved fiberglass plenum box with ceiling radiation damper (CRD) is available in three model styles. The fiberglass plenum boxes are offered in 1- and 1-1/2-inches-thick rigid ductboard with ...

Question: I want to add ceiling lighting and a ceiling fan to my living room, but no wiring is up there. I would like to add decorative box beams and run the wiring through them. How can I do this?