[dmarc125]

House built in 1989 what would have been code for floor joist in a 16' span. My joist are 9 1/4 " Would that even be legal?

 

[Golden view]

Yes, depending on species, grade, spacing, and whether it's a living space or bedrooms above.

 

[B.D.R.]

I believe that 12' would be the max span.
Must be pretty bouncy

 

[dmarc125]

Pine, 16" on center

 

[dmarc125]

bedrooms the side where baths are the span is 13'-6"

 

[Golden view]

http://www.southernpine.com/media/SPtable2_060113.pdf

 

[Golden view]

bedrooms the side where baths are the span is 13'-6"

in that case,

http://www.southernpine.com/media/SPtable1_060113.pdf

 

[dmarc125]

the whole reason I'm asking is upstairs BR think they cut out window and put in French doors found this when we had "national window replacement " company come put in new replacement doors 2-1/2 months later locks are not lining up/working took crow bar raised up middle where hinges are and door locks work. While I had crow bars in pounded another spacer in locks work fine (for now) I am thinking that these doors need a header underneath them. would I be correct? or is my thinking that 12 X 10 is NOT enough to hold this steel set of doors up?

 

[dom-mas]

My span chart says that an SPF 2x10 that is just strapped can span about 12' 6" (I say about because it's in metric) and strapped and bridged it can span a little over 14'. 16' can be spanned by 2x12 @ 16" oc bridged and strapped, or 2x12 @ 12"oc strapped only, or bridged only (or bridged and strapped obviously)

It all assumes No1 SPF