I'm bringing in 4 American Guinea hogs this weekend, and I'll be using intensive rotational grazing with movable electric netting around our pasture. I have a loafing shed that is technically movable, but it would require PVC skids and a tractor. I need to be able to move the whole setup (waterer, feeder, loafing shed, fence) every few days, and it's not practical to move the wooden loafing shed so often. The pasture is open and unshaded, so they'll need a cool place to hang out. One hog farmer friend suggested corrugated drain culverts, which can be easily rolled, but I think those will get too warm under direct sun. Any suggestions? Guinea hogs are quite a bit smaller than other pigs, max 200 lbs at maturity, usually smaller.