Need tubing measurements. - The 1947 - Present Chevrolet & GMC Truck Message Board Network

MONTEZ · 10-22-2010, 09:36 AM

Can anyone tell me the actual external demensions of 2x3x1/4 tube stock? I'm trying to sketch something, but don't have a piece to measure. Also if you know what the corner radii are that would be great!

chevy_mike · 10-22-2010, 12:24 PM

Unlike lumber dimensions, metal tube is the actual outside dimensions. 2"x3" would be the outside. 1/4" thick metal, that would affect the inside dimensions. It would be 1.5"x2.5". Sorry, no help on the corner radius.

**Captainfab** · 10-29-2010, 12:01 AM

Typically the radius of the outside cornere of square or rectangular tubing is 1/2 the wall thickness. So for .250 wall tube the outside radius would be .125. I don't know if this is an actual steel spec, this is just what I have observed over the past 30+ years of fabrication.

dwcsr · 10-29-2010, 03:19 AM

I've gotten 2x3 with tight sharp corners and rounded wide corners, I think it depends on the country it milled in.

MONTEZ · 10-29-2010, 04:13 PM

I ended up going with a .1875 Radius and it worked out well.

Too bad I changed my mind and am designing another setup now

10-22-2010, 09:36 AM	#1
MONTEZ Registered User Join Date: May 2010 Location: Nacogdoches,Texas Posts: 330	Need tubing measurements. Can anyone tell me the actual external demensions of 2x3x1/4 tube stock? I'm trying to sketch something, but don't have a piece to measure. Also if you know what the corner radii are that would be great! __________________ Smoke Tires, not Drugs

10-22-2010, 12:24 PM	#2
chevy_mike Never Ending Projects Join Date: Jul 2006 Location: San Diego, CA Posts: 3,836	Re: Need tubing measurements. Unlike lumber dimensions, metal tube is the actual outside dimensions. 2"x3" would be the outside. 1/4" thick metal, that would affect the inside dimensions. It would be 1.5"x2.5". Sorry, no help on the corner radius. __________________ . 1965 C10 Panel, Tiki Express http://www.67-72chevytrucks.com/vboa...d.php?t=506580 SOLD 1968 Chevy C10, Long, Fleetside, Hot Rod Hauler http://67-72chevytrucks.com/vboard/s...d.php?t=313233 SOLD 1965 Chevy C10, Long, Fleetside, Hot Rod C10 http://67-72chevytrucks.com/vboard/s...d.php?t=415702 SOLD We were given two ears and one mouth for a reason... listen twice as much and speak half as often...

10-29-2010, 12:01 AM	#3
Captainfab 60-66 Nut Join Date: Mar 2007 Location: Coeur d'Alene, Idaho Posts: 23,252	Re: Need tubing measurements. Typically the radius of the outside cornere of square or rectangular tubing is 1/2 the wall thickness. So for .250 wall tube the outside radius would be .125. I don't know if this is an actual steel spec, this is just what I have observed over the past 30+ years of fabrication. __________________ Power Steering Box Adapter Plates For Sale HERE Power Brake Booster Adapter Brackets For Sale '63-'66 HERE and '67-'72 HERE and '60-'62 HERE and "60-'62 with clutch HERE Rear Disc Brake Brackets For Sale. Impala SS calipers HERE Camaro Calipers HERE D52 Calipers HERE 6 Lug HERE Hydroboost Mounting Plates HERE

10-29-2010, 03:19 AM	#4
dwcsr Hollister Road Co. Join Date: Apr 2005 Location: Houston Posts: 6,131	Re: Need tubing measurements. I've gotten 2x3 with tight sharp corners and rounded wide corners, I think it depends on the country it milled in.

10-29-2010, 04:13 PM	#5
MONTEZ Registered User Join Date: May 2010 Location: Nacogdoches,Texas Posts: 330	Re: Need tubing measurements. I ended up going with a .1875 Radius and it worked out well. Too bad I changed my mind and am designing another setup now __________________ Smoke Tires, not Drugs



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