thanks phat. if all goes well in the am, I'll remove the last bit of old glass and wood scuff everything up good and cutting wood by dinner 1700 or supper for the southerners. Also, I was thinking rather then justa 3/4 sheet with a 3/4 nailing kleet on top, I'd just do a double 3/4 don't know if it would be stronger but I have plenty of room to do it this way.