Thanks Doohickie, that is what I'm looking for. Given the amount of rain that we get, I'm also going to shoot for some sort of roof as well, but the enclosure is a very important part of this. As it is, the bike racks are on a part of the school grounds that has no visibility. I would like to think that if there were a secure location to lock up the bikes, more kids would ride their bikes to school, but I know personally I don't want to lock my son's nice bike out there during the school day, I'm afraid that it'd be gone after a few days.