Extrapolating Default WLL for Unmarked Steel Strapping?

Ahhh, I have been thinking about trying to secure a unitized bundle as if it is one solid item when, in fact, it is not one solid item. So no matter how strong the steel banding is or how tightly the steel banding is on the bundle, the bundle still can not be secured at the bottom as if the bottom were an "attachment point" on a single item?

 

The way the loaders band the bundles is that as each skid gets added to the top, it gets banded (somewhere) with two or three bands (depending on length) to the skids below. The newly added bands don't necessarily attach to the skid immediately below...it just depends on what slots in the wooden dividers are available and are convenient. So for each new top skid added to the bundle, one band might go to through the slot of the skid below, while another band might go through a slot that is 2 or 3 skids below. Then as each skid is delivered, the bands for the top skid are cut releasing the top skid while all skids below are still banded to the main bundle.

The aluminum trailer floor has raised "friction" ridges. On particularly unwieldy loads -- loads that have unusually shaped or delicate stuff on top, I have sometimes strapped down just the bottom skid of the bundle with an excess of straps and never had any movement of the bundle -- the ridges dig solidly into the wooden skids. Then as I deliver, I just cut loose the banding holding the top skid for delivery...quick and easy. No fussing with straps at all.

 

If I recall correctly, steel strapping is exempted from the adjustable requirement. But you're right, if it loosens, it is not fixable.