Or should I say re-grading lumber.
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Grading Lumber
- Thread starter ICE
- Start date
mark handler
SAWHORSE
Nice......
Agree that by reducing the depth of the beam the current grade mark is no longer valid and it needs to be regraded. For example the knot at the existing bottom of the beam.
What bothers me is that even if the beam is deep enough are the saw cuts at the reinterant corner. The steel strap does not cure it. They would have been better off to cut the beam to a constant depth and placed a shim at the support.
What bothers me is that even if the beam is deep enough are the saw cuts at the reinterant corner. The steel strap does not cure it. They would have been better off to cut the beam to a constant depth and placed a shim at the support.
For general info.This is the #2 page from the Nat'l Grade Rule manual. Notice the edge knot specs. Quick and dirty, everything you want to know about grading. "Quarter, third, half"... #1,#2,#3
View attachment 450
View attachment 450
/monthly_2011_07/NGRno2.jpg.c23128edeafe0dae65265448ed6afefc.jpg
View attachment 450
View attachment 450
/monthly_2011_07/NGRno2.jpg.c23128edeafe0dae65265448ed6afefc.jpg
The whole enchilada is at the second site from the top. PDF
http://www.google.com/search?q=Nat%27l+Grade+Rule+manual&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-GB
fficial&client=firefox-a
When I titled this thread Grading Lumber, it was just word play. I was not concerned about the grade of the beam. It looks like #2. The problem was that the beam has lost 4" in depth. I am not an engineer. so if you do such a thing, don't be surprised if I request an engineer's opinion.
The one and only time that I have questioned the re-grade of lumber was a case where many 2"x12" were ripped to 2"x6". I have questioned the stamp on lumber. Now and then a board gets through the grading process with all of the allowed defects or defects that are right up to the limit and beyond. I know little when it comes to grading lumber but if it looks like one that should have been tossed, that's where my grading knowledge begins.
http://www.google.com/search?q=Nat%27l+Grade+Rule+manual&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-GB
fficial&client=firefox-aWhen I titled this thread Grading Lumber, it was just word play. I was not concerned about the grade of the beam. It looks like #2. The problem was that the beam has lost 4" in depth. I am not an engineer. so if you do such a thing, don't be surprised if I request an engineer's opinion.
The one and only time that I have questioned the re-grade of lumber was a case where many 2"x12" were ripped to 2"x6". I have questioned the stamp on lumber. Now and then a board gets through the grading process with all of the allowed defects or defects that are right up to the limit and beyond. I know little when it comes to grading lumber but if it looks like one that should have been tossed, that's where my grading knowledge begins.
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