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Author Topic: So... 2 x 2 does not actually equal 2 inches..... [Locked]
Banelord_FF  2 stars
Title: Cunstrukshen Werker
Posts: 321
Registered: 2002-1-3 14:33:41
Second_Chance posted:

Kah_v2 posted:

ArchrikerHG posted:

treated lumber is put under pressure to strengthen it. It's the correct size before it's pressurized and treated, and it shrinks some...how do people not know this by the time they are adults? I figured that out on my own when I was like 5.



You know a lot about wood.



Untreated lumber isn't pressed and it is smaller. Your theory is flawed. Lumber is just cut smaller. As of the 1970s wood has been cut, planed, and dried to present a smoother, more consistent product to the customer, which has resulted in a size of an acceptable range of roughly 1.5" x 3.5" for a traditional 2x4.



This. When it was cut, it did measure 2"x2"(or 2"x4", etc...). The lumber is cut to size when it is green, (or in other words, right after the tree was cut down) and it must dry before it can be sold. As it dries, it shrinks and then it is planed down to the final size.

 

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tsingtao2  3 stars
Posts: 678
Registered: 2000-10-10 23:08:10
ArchrikerHG posted:

wait, so you looked at a 2x2 and couldn't tell that it wasn't a full 2 inches on each side?...


treated lumber is put under pressure to strengthen it. It's the correct size before it's pressurized and treated, and it shrinks some...how do people not know this by the time they are adults? I figured that out on my own when I was like 5.



this is sooooo wrong... speaking from working in the forest industry for 8 years... a 2x4 IS 2" x 4" rough. After it is planed down, it becomes the size it is sold. Pressure treated wood does not shrink more than .05 inches.


I didnt read any more replies past this one by ArchrikierHG, so if it was said already, sorry.

 

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-Darkfire-  3 stars
Posts: 536
Registered: 2002-4-21 13:17:30
2 x 2 what?

inches?

barrels?

furlongs?

 

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regulator_cracka  4 stars
Title: They finally recognized greatness.
Posts: 3,726
Registered: 2009-1-6 15:07:53
winga posted:

When tearing down part of my parents house I found the 2x4's were actually 2" x 4"... Back in the day they were actual size.



Thank you Winga!


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-Abysmal-  4 stars
Posts: 1,328
Registered: 2000-12-20 06:45:24
i learned this looooong ago, and learned the Tsing method as explained above.
not so sure what arch is smoking though

BUT, yes, my house has true measured lumber in it as well...was a PITA when i modified a wall last summer
i however knew what i was in for and bought accordingly

 

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regulator_cracka  4 stars
Title: They finally recognized greatness.
Posts: 3,726
Registered: 2009-1-6 15:07:53
-Abysmal- posted:

i learned this looooong ago, and learned the Tsing method as explained above.
not so sure what arch is smoking though

BUT, yes, my house has true measured lumber in it as well...was a PITA when i modified a wall last summer
i however knew what i was in for and bought accordingly



Thank you daddy, just tell me what else I need to know in life now please so I do not repeat mistakes like this.

 

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-Abysmal-  4 stars
Posts: 1,328
Registered: 2000-12-20 06:45:24
regulator_cracka posted:

-Abysmal- posted:

i learned this looooong ago, and learned the Tsing method as explained above.
not so sure what arch is smoking though

BUT, yes, my house has true measured lumber in it as well...was a PITA when i modified a wall last summer
i however knew what i was in for and bought accordingly



Thank you daddy, just tell me what else I need to know in life now please so I do not repeat mistakes like this.



stop nailing my mom...you can do SOOO much better!

 

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ArchrikerHG  2 stars
Posts: 403
Registered: 2004-2-20 14:24:08
I'm not seeing where I'm wrong...

maybe you missed the comma right before i said "and it shrinks some"? I also said it's the correct size before anything is done to it...which is exactly what you 2 said.

They cut it 2 x 2, it shrinks from being dried up, then they do anything extra with it (spray the treatment stuff on it, press it for the pressure treated stuff, etc).

Guess I worded it poorly or something, you guys sure do get mad about lumber lol.

 

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caffeino00  2 stars
Title: Moderatroll
Posts: 258
Registered: 2001-5-6 13:48:18
Caledric posted:

JoAyanami posted:


-Jo



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This is Heterochromia

 

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Cawlin  4 stars
Posts: 1,759
Registered: 2005-2-22 07:58:42
ArchrikerHG posted:

I'm not seeing where I'm wrong...

maybe you missed the comma right before i said "and it shrinks some"? I also said it's the correct size before anything is done to it...which is exactly what you 2 said.

They cut it 2 x 2, it shrinks from being dried up, then they do anything extra with it (spray the treatment stuff on it, press it for the pressure treated stuff, etc).

Guess I worded it poorly or something, you guys sure do get mad about lumber lol.



Pressure treating has virtually NOTHING to do with the actual size of lumber between when it is "rough sawn" and when it's cut for final delivery.

Non pressure treated lumber is the same dimensions as pressure treated lumber.

Also, the wood drying out has a small bit to do with its final size, but that is negligible - not 25% as in the case of a 2x2 measuring ~1.5" x 1.5"

The "shrinking" is from the rough sawn lumber being planed further, in order to get smooth, square edges and surfaces. This reduces the size somewhat because the rough cuts which have the boards at 2" x 4" aren't all exactly square and/or don't leave the surfaces smooth, but rather with saw marks and/or other potential defects - hence the term "rough" sawn.

 

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