Pete, thanks for the reply. Just couldn't see the hinges close enough. I would think the zip ties will last several seasons if not continuously being opened/shut. Did using the zip ties make it quiet too? Did you loose much of the straw mat due to moving it or wind blowing it off? That extra weight in the base should make it harder for the wind to blow it over!
Too bad it's not lighter...you could have a trap door in it with handles on the floor and move closer if the deer weren't where you wanted them! haha. I may have to scrounge up some old panels and materials for the frame this year. I've hunted from behind haybales before, but never inside one!