I am using these hooks with HyLoft ceiling storage. The fit is perfect. I was wondering if they would make it harder to move boxes that are sitting on the grating but they do not. They are the same height as the rest of the grating.
In attached image the hooks are laying on 1 inch gridded mat so you can see all the size of every part of the hook better. I am also including images of the hooks mounted on the grating.
The part of the hook that attaces to the Hyloft system is 3.5" long (from outside to outside)
The wire thickness is 0.25", so the inside spacing of the hook is 3"
Each hook hang down 5.75"
The flat part of the hook (where you hang things) is 3.25"
The end that points up is 1.25"
The hooks feel sturdy, I am very pleased.
You can find it on Amazon by following this link.
Ali Julia review ★★★★★