Can someone decipher what these numbers mean? I was trying to find the PSF info to see if I can install a metal ceiling 29 gauge and R30 insulation on these trusses. But I see no PSF on here. 28 span x 44 ceiling, 48" on center. Thanks
Need help deciphering Truss information
- Thread starter smk17
- Start date
manwithtools
ALLIANCE MEMBER
SPIB = Southern Pine Inspection Bureau
KD19 = Kiln Dried Moisture content greater than 19%
HT = Heat Treated
IF04 = Interfor Thomaston Division (Sawmill where it was processed)
Not sure about the text of the second line, but I don't think that came from the truss maker, I think that came from the sawmill too.
KD19 = Kiln Dried Moisture content greater than 19%
HT = Heat Treated
IF04 = Interfor Thomaston Division (Sawmill where it was processed)
Not sure about the text of the second line, but I don't think that came from the truss maker, I think that came from the sawmill too.
mike93lx
ALLIANCE MEMBER
You need prints from the manufacturer
Zen
Well-known member
That's the lumber grade information. At 48" oc I'm guessing for 5 psf on the bottom chord depending on your location.
You should have some drawings that came with the trusses.
You should have some drawings that came with the trusses.
Rusted Nut
Well-known member
Yup, agree with others here. If you can’t get a hold of the truss engineering or company, I think you’d be OK with 29 ga metal and insulation, that combo doesn’t weigh much.
mike93lx
ALLIANCE MEMBER
If he ordered them, it should be easy as they would have sent prints to him
I called my contractor (a mennonite) he said the trusses are way strong enough for metal ceiling and insulation. Since he designed it with 48" OC, he specified the stronger trusses. He said I could come up and get the paper from the company but I trusted him.
Tbender78
Well-known member
Get the truss documents. Even though you trust him now, you may not as the building progresses. I trusted mt contracted and cost me a fortune later on after finding major mistakes. Good peace of mind.
mike93lx
ALLIANCE MEMBER
I agree. No harm in getting the documents