Construction Ideas?

[Duck Butter]

The floating boarwalk was out of the price range, we are now going to use a helical anchoring system and set the boarwalk up 3' and use either 5/4 treated wood or another material. Someone had recommended using fiberglass grating like in the picture below. I saw a guy on Grand Isle that had the floor of the camp deck made out of this and he also used this instead of boards or expanded metal to make a really nice ATV trailer

Questions:

1. Do any of you have any experience with this fiberglass grating?
I think its common in the oilfield

2. Are there any types of helical anchors that can be installed by a hand held auger? Only having luck finding ones that have to be installed with a machine like a Bobcat


thanks, not trying to hijack from the 'Inchspinner vs W' thread