Commercial addresses are those zoned as commercial real estate, not just that a business is located there. Will often, but not always, have tractor-trailer access with a loading dock suitable for unloading with a pallet jack or forklift.
There will be a residential delivery charge for shipments to a home or private residence (any dwelling where people live on the premises), INCLUDING LOCATIONS WHERE A BUSINESS IS OPERATED FROM A HOME
There will be a delivery surcharge for sites where construction is taking place.
There will be a delivery surcharge for any location that usually requires inspection of a driver before access is given (i.e. government buildings, schools/universities, correctional facilities, etc.)
There will be a delivery surcharge for locations that are not generally open to the public during normal business hours and often don’t have a loading dock and/or offloading equipment (restaurants, churches, apartment buildings, etc.)