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Can I use a wooden cross bar from knob and tube days to support a ceiling fan?

Can I use a wooden cross bar from knob and tube days to support a ceiling fan?


  #1  
Old 11-22-19, 03:33 PM
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Can I use a wooden cross bar from knob and tube days to support a ceiling fan?

I have a knob and tube fixture mount made of a wooden crossbar between 2 joists holding a metal (gas?) pipe. I was able to unscrew the pipe.

Can I use the existing wooden crossbar from knob and tube days to mount an electrical box for a ceiling fan?

I don't know if it was a dual gas and electric fixture. I am guessing just electrical since there wasn't any pipe dope, rope, cord or anything in the treads of the pipe to seal a gas pipe. But then again maybe they didn't use that stuff in the early 1900s.
 
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Old 11-22-19, 04:33 PM
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Could you..... maybe. Is it a good idea.....no.
Especially since you have no idea how structurally strong it is.
 
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Old 11-23-19, 08:38 AM
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I would consider a 1-1/2" x 1-1/2" wood bar to be sufficient for a ceiling fan because I would feel confident using a new 2x2 (has those dimensions) for that purpose.

But I have seen (thinner) wood struts split in half on a long diagonal (not fully lengthwise), which would be bad news if a ceiling fan relied on such a support.
 
 

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