I use an 8 gallon action packer. It fits perfectly. I strap it down with a ratchet strap. I went with the mobile option instead of permanently bolting boxes to the platform. That way I can remove the action packer at camp and place it by the fire pit area as it holds all my charcoal and other fire starting and cooking…
There are quite a few threads here that detail the various storage options owners have used. I personally have a pair of 8 gallon Action Packer bins bolted to mine, one for water & electric system bits, one for my sewer hose. But this is next on my purchase…
Lots of threads. Back in the day, the Rubbermaid Action Packers were the storage of choice. Here is an early thread that covers many different options.https://tab-rv.vanillacommunity.com/discussion/1985/t-b-aluminum-platform/p1I have the aluminum storage boxes from "Custom Aluminum Boxes" (you can see them in the thread.)…