I wouldn't do it. I had to take apart a bunch of dry erase boards in my job this summer and I dont think it will take the abuse your skis will give to it. I think your going to catch an edge every single time. They aren't that durable and will prob deteriorate from water. Search how to build a box, or something along those lines. I have a thread in there with a bunch of info. A bunch of pvc pipes works well and its very cheap.
dude, if i was abe lincoln in the 1860s, and a bunch of southern states decided to break off, id be like, dude, fucking take them, we dont care.-mnscratchskier