Window shutters are usually non functional decorational pointless plastic junk nailed to the side of the house. I just replaced a bunch of windows and trim. But I made the trim kind of tough. Stained poplar glued to the stucco with "liquid nails" and screwed the poplar though stucko to the window frame studs with 3 inch deck screws so the window trim the stucco and the frame are all one structure now. A little excessive I know. The whole point was I may use them as a foundation for some kind of functional shutter later on. The old shutters that fell off the house many years ago were just nailed to the stucco. I the only protection I am looking to get out of these shutters is a little hail proofing. Not really looking to make the shutters bullet proof, fire proof or anything thing crazy like that since the trim is tough but not strong enough to hang steel plates off from. Just weather protection. We can get base ball size hail, micro burst in the summer and blizzards with 90mph winds in the winter. I have seen hail here take the vinyl siding off 3 sides of some ones house and bust all their windows not far from me and last winter we had a blizzard blowing for 8 hours with gusting up to 80mph so its real. A busted window during a blizzard would really ruin my day. Any ideas?