Here's a forklift hoisting hook attachment that I made to safely lift stuff with my forklift that aren't on pallets. Without a hook attachment like this, you risk having the straps or chains slide off the forks when you are lifting stuff. It also means you can precisely position where the unit is on the forks so you don't overload the forklift. I made this version with some scraps of steel, and the only thing I purchased was the Hook & clevis.
Forklift Hoisting Hook Attachment - Kustom's by Kent