If your basement door is smaller than 28” then CommTank technicians need to make extra cuts to remove your oil tank. This is typically an issue when a tank is installed in a crawl space or behind a finished partition. Our technicians have seen all types of basement configurations and they can remove doorway trim or cut wallboard if it’s needed. Old houses have smaller than standard doors. 25-26” The tank also bows in the middle after one cut.