Do you leave them in the bags or put them in a big Rubber Maid type tub?
I have 300+ pounds of KBB sitting in my garage. My boss tells me that I need to find a storage system for them. I guess lined up against a wall isn't good enough.
I have both. Bags stored on a pallet in one garage and smaller plastic storage containers on my patio (closer to my cookers). I keep them out of sight behind my patio bar.
There are some pretty handy looking plastic storage units out there.
Good luck!
In bags in the BBQ shed.
If I fall into a massive score, I'll store it in the rafters of the garage.
The couple of bags I am using get kept in a SunCast locker on the BBQ deck.
My main supply is on a pallet in the garage, I have one those plastic Kinsford containers I use out of I keep on the deck by the cookers. Never had a problem of rain getting in it.
I live in a humid climate with lots of moisture so I have to be careful not to overbuy and keep charcoal off of the concrete floor. As long as I use it within a year it seems to start OK and not crumble apart. I've not had to do anything further.