Question about a fence I saw Saturday

[eddie]

Actually, it's the fence that borders King Metals in Dallas.

It's using 3/4 sq tube, passing thru 2x1x1/8 punched channel.

But I can't see or even feel any welds securing the tube to the holes in the channel...but it's still tight, no play in it.

I don't know if they used epoxy instead of welds or what...when I look at the tube in the hole in the channel, it almost looks like a small wedge was used to tight fit the tube but this isn't possible as it is a large fence that has hundreds of these holes. Maybe this is residue from epoxy or something.

The tubes don't rest on a bottom rail..however it was done, the tube is held thru 3 rails of punched channel.

Any ideas how this is done without welds? Zrexxer...I'm sure you've seen it.

thx
Ed

[savant]

sounds like they used a strippit to cut the holes, and a roll-forming press to crimp it tight.(they also could've expanded the 3/4 from the inside with a slug & wedge bolt.)

[Zrexxer]

Zrexxer...I'm sure you've seen it.Actually, I've never been there! All my dealings with them has been phone orders that shipped UPS. I'd love to make it by there sometime.

[flyerdan]

I'll bet these are Ameristar (http://www.ameristarfence.com/) panels. They come pre-packaged and have a long rod, about .125" going through holes in the pickets to secure them through a channel to the cross rails. We deal in a fair amount of this, really time consuming fabbing up the custom gates to match.
The pickets have a rubber or plastic grommet surrounding them to keep them snug.

[eddie]

I'll bet these are Ameristar (http://www.ameristarfence.com/) panels. They come pre-packaged and have a long rod, about .125" going through holes in the pickets to secure them through a channel to the cross rails. We deal in a fair amount of this, really time consuming fabbing up the custom gates to match.
The pickets have a rubber or plastic grommet surrounding them to keep them snug.

That must be what it is...bottom line, not something I'll be doing I guess.