Question about Rect. Steel Tubing
- Thread starter mpro1
- Start date
Matt S.
NAXJA Forum User
- Location
- Fresno, CA
Steel tubing of most all types is OD measurements.
Ramsey
NAXJA Forum User
- Location
- Shreveport, LA
2x4 lumber is 1.5x 3.5?
tealcherokee
NAXJA Forum User
- Location
- CT
yeah, its 2x4 before its pressure treated
Stumpalump
NAXJA Forum User
- Location
- Franktown Co.
2X4 3/16 wall I have leftover measures 2 1/16" X 4 1/16 and 3/16 thick. That stuff is getting expensive but at least you can by it by the foot if you don't need a full stick.
MrShoeBoy
NAXJA Forum User
- Location
- Cincinnati, OH
tealcherokee said:
Wrong. The lumber is cut to 2 inches by 4 inches, then the lumber is dried and thus it shrinks to an actual measurement of 1.5 inches by 3.5 inches. Pressure treating is a chemical process that does not effect the measurements or at least it shouldnt. The 2x4 measurement is the nominal measurement and its actual measurement is 1.5"x3.5"
Steel typically does not have nominal measurements, it is labled and measured in actual size.
AARON
buzzbombxj
NAXJA Forum User
- Location
- lake chabot
but thickness is nominal, 1/8th is .120, 3/16 is .180.
DirtyMJ
NAXJA Forum User
- Location
- Prince George, BC
buzzbombxj said:
On HSS?
The always say 100 wall, 125 wall, 188 wall... I've never checked, but I would assume they don't lie.
Begster
NAXJA Forum User
- Location
- Cape Cod/Boston, Mass
Ya I found that out when I was at a lumber yard picking up wood a couple years ago for my dad, back when I didn't know much. I was out measuring and I was like what the hell, someone put the wrong in the wrong place.
Ya preasure treating isn't why it shrinks, its a chemical process, like said before, that uses Arsenic, a known poison to humans. Make sure none of your idiot friends get the smart idea to put a piece into the camp fire when your not looking. Serves them right for their throat hurting after that.
Ya preasure treating isn't why it shrinks, its a chemical process, like said before, that uses Arsenic, a known poison to humans. Make sure none of your idiot friends get the smart idea to put a piece into the camp fire when your not looking. Serves them right for their throat hurting after that.
nhrocker
Jackstand wheeler
- Location
- Claremont, NH
Not that it helps out the original question in this thread, but just to let you guys know, you can buy 2x4's that are labeled "rough cut" or "rough sawn" and should measure 2x4. The ones you would normally buy are "dressed" and measure 1.5x3.5. And they're not smaller just because of "shrinking" (which does happen, but not that much)...they're mostly smaller because the rough sawn material is planed and jointed on all sides. The process takes off 1/8" to 1/4" on each side of the piece leaving it undersized. It's done because the true 2x4 rough cut material is just that, rough. The jointing/planing removes the peel, snipe, variances, etc. from the rough milling and leaves you with a cleaner, easier to handle piece.
And arsenic (chromated copper arsenate) is now only used in marine/industrial grade pressure treated lumber. All the material that is rated and sold for residential use uses less harmful chemicals (typically amine copper quat or copper azone). Still not anything you'd want to burn, but it's not nearly as bad as CCA when you're handling or cutting it.
And arsenic (chromated copper arsenate) is now only used in marine/industrial grade pressure treated lumber. All the material that is rated and sold for residential use uses less harmful chemicals (typically amine copper quat or copper azone). Still not anything you'd want to burn, but it's not nearly as bad as CCA when you're handling or cutting it.
