22k suicide coil. How many chains?

3 minimum, 4 will do the job very well.

 

Depends on chain and binder size.

 

2 is technically legal up to 26,400 with 3/8 G70 chain. More is better with a coil though.

Personally I would do 3. 1 straight through or very slightly back depending on tiedown points and 2 more pulling forward and back connecting right in line with the 4x4s under it.

 

No, no flatbedder would ever say anything besides "it looks ok, but me, I'd throw another chain on" no matter how many chains were already on it!

 

2 chains. 4 binders.

 

If your chains are rated 5000 lbs, 4 satisfies DOT requirements, 5 gives you peace of mind. Me personally, I would put 5.

 

Well none of that is correct.

3/8 G70 is 6600lbs WLL per chain which he said he was using above. Only need enough for 1/2 the weight in WLL. 2 chains gets him to 13,200 lbs WLL. A 22,000 lbs coil would need at least 11,000 lbs WLL so he's legal with 2.

If he was using 5/16 G70 they are good for 4700 lbs so he only needs 3 to be legal. That would get him to 14,100 lbs WLL of the 11,000 he needs.

 

This might help you in the future...

https://www.rlicorp.com/sites/defau...control/drivers_handbook_cargo_securement.pdf