Reel-Break...I would have to agree with cpal and install the panel in the dwelling.If your rewiring the house then redesign the location of the panel in the building somewhere...maybe relocate the service to another side of the house or put the main in the meter outside and put a sub-panel IN the house somewhere...maybe in the utility room with the heating equipment.Also staples are not the only way to support romex.See 334.30 commentary in the hardback says that wires installed through bored holes are considered supported.
