Proper securement of low to deck and wide.

The spools will be fine to chain too. Very common to see wide plate chained that way. I've seen way more stake pockets mangled from chains than I've ever seen spools pulled away from the rub rail.

 

We hook to the rub rail all the time on our stretch flats on very wide loads. This 20’ wide has 4’ off this side. The Pratt brand trailers have a thicker rail then the mancs. The manacs like to bend and they have a walking deck in the trombone section so you can hook the topside of the rail. It would be nice if we had d-rings welded to the frame rail.

In your case I would use as many chain pulls as possible. After chain pulls I would use spools. If it’s a 2-3’ or thinner you need all your securement near the 6x6’s or you may break the stone.

 

Another thing to think about is your angles of securement pulling down are less then ideal . You should think about some sort of x chain on the front. Or over secure to compensate.

For example this load was 67’ long 16’ wide and only 37k. I had 8 straps. Minimum for length but over double required for the weight. It’s also loaded on Rubber mudflaps to increase the friction.

 

I’ve seen rub rails rip right off after bending like in your picture. I would go to the frame

 

Stupid laser tables, took a 17-8 X 70 which was actually a 130 cut in half and stacked one on top of the other to PA. Got there and the door was only 16' wide (someone forgot to account for the walkway on one side and air handler valves on the other). Was there a week trying to get it in the building. In the end they offloaded it into an abandoned parking lot a few blocks away and I left. Don't know if they ever got it into the building or not.

 

I don’t know if it’s legal or not, but that pic of the binder hooked into the rub rail is bad. You are pulling on that rail at a very bad angle. I’m not even sure it is legal, because I’ve never seen a load rating on a rub rail.

 

I’m not in anyway disagreeing with your assessment but legality is irrelevant because tie downs in the trailer aren’t required to be marked or rated.

 

Regardless they bend so easily especially pulling outward. Scary stuff when they let go.

 

No I agree totally and completely just isn’t illegal. Not trying to nitpick.