The one problem that I had with this project is that I live in eastern Idaho and it's late December.
Apologies if some pieces of this don't make as much sense, this is the first one of these I've done from a mobile device and I tend toward ADD.
Step 1: Gather Materials
4 3" bolts with washers and nuts
8 4" hurricane straps
About 80 1" screws (I had a bunch of small drywall screws lying around from an previous project)
4'x8' sheet of Hardboard (optional)
Liquid nails or some other adhesive (if you use the hardboard)
I tried to find 4 identical pallets at local businesses without success. I finally gave up and bought four #1 pallets from a local refurbisher. The pallets cost a total of $28.
Everything else I picked up at Home Depot and a local hardware store.