Worm /insect holes in lumber - help sought 3

[cva1993r]

Hello all,

I was wondering if anyone knows of any good publications dealing with worm or insect holes in conventional lumber (i.e. 2x4, 2x6 studs). I am conducting strength tests to see how they compare to lumber with no such holes. The NLGA (National Lumber Grading Authority) approves these studs (with a limited ratio of holes).....I was suprised to actually see some of them at a local lumber yard.....these probably will challenge drywallers as it's a hit and miss till they actually can nail/screw the drywall sheets to wood and not the holes !!!


Thanks ,

CVA1993r

 

[jheidt2543]

The US Forest Products Lab, Madison, WI would have information you are looking for.

 

[SlideRuleEra]

Here is a link to the document that jheidt2543 has recommended:

http://www.fpl.fs.fed.us/documnts/FPLGTR/fplgtr113/Ch13.pdf

It is free and is one chapter in an book that you may want to download.

 

[cva1993r]

I want to thank you both.....


CVA1993