Well, i decided today to try something different. I put a piece of 5/8x6" decking on the outside of the frame overlapping the metal frame and the wooden base and screwed it together all around the outside of the perimeter. Very sturdy and attractive! I got all the walls up and will start on the roof sunday. Had some trouble with the screws that I was supposed to put in the wall studs but finally figured it out. The door track whooped me good.......i had it together wrong!! It was a rough day but the hard part i think is over. how bad is the roof????? WIsh me luck!!!