I like those firewood pallets Roger.
I was thinking of making something like that, but instead of making it to lift with the forks on the front, make it so it's held up off the ground 4" or so like yours are, but leave the middle open, so I could slide under it with the grapple tines and lift it with the grapple instead. Since I almost never have my front forks on unless I'm moving pallets of lumber, it would be a lot more useful if I could lift it with the grapple open.
Only thing I haven't checked yet is if the grapple clamps would get in the way, even when open, but since they open pretty far, I could simply adjust the height of my stacks to allow room.
Edit: Do you guys think that would work?
Thanks about my pallets.
You are going to need pallet with an opening of at least 66.'' I think it would take a strong pallet to support the weight wood on the pallet over 66.'' I say take the grapple off or use rear forks with standard pallets.