I have a concrete floor. I would only be using them for the walls. They attach to each other using cams. I like the thought of having the walls finished in metal, which these panels are. It also seems it would be a little less expensive to use the cooler panels than it would be to frame, insulate and sheath in OSB?
You can make a shed out of them.
When you are putting it down on a concrete floor you have to have some type of floor "screed" to attach it to the floor and anchor it in place. It can be an angle you screw thru into the panel ( think 3" x 3" aluminum angle), it can be a track or it can be a concealed screed the panel sits over.
Most panels will span about 20' with tops (if you have tops available). If you are building a roof on your our own ( and not using panel tops), you have to build a shell to support the walls. I probably wouldn't bother if I didn't have tops. The walls are wavy gravy without the support from the tops
You can cut in windows and doors, but it's loud. A standard skill saw won't cut deep enough to cut thru both skins. You are better to drill a hole at the corners of your opening, cut the skin and flip it and cut the other side.
The coolers that sit outside have a rain cap that makes the unit rain tight. Without a rain cap they will leak. Most rain caps have a foam piece that give it some pitch so rain will roll off.
I don't know what else to tell you, except that cams don't always line up when you are using miss matched panes and they get rusty and troublesome. You cann install a "batten strip" as opposed to cams that can connect panels together .
Also there is a insulated panel called "continuous line" panel, that don't cam together. They are tongue and groove that tap together and are secured together by a screw at the top and bottom that go thru the tongue of one panel and into the groove of the other. (google MetlSpan).
