We have a 2500a SwitchBoard to be installed. The building is tilt wall and is existing and the conduit runs cant be feed under ground. We will need to run conduit thru the wall to Switchboard. The Switchboard will sit against the wall and back side will sit against the wall on backside. The only part i am worried is that the instructions request we not penetrate side panels and we cant enter bottom because its an existing building. i guess we could enter top but the drawings suggest 6-4'' conduits for parallel feeds to Switchboard and that would take most of my space for feeder conduits. I hope I explained it enough to get idea of my situation. I am basically looking to hear if anyone has any suggestions on how to feed Switchboard without entering thru bottom.