On the same premises with every building, structure, or part thereof, erected and occupied for manufacturing, storage, warehouse goods, display, department store, wholesale store, market, hotel, hospital, mortuary, laundry, dry cleaning, or other uses similarly involving the receipt or the distribution of vehicles or materials or merchandise, there shall be provided and maintained on the lot, adequate space for standing, loading, and unloading services in order to avoid undue interference with public use of the streets or alleys. Such space shall include a 10 foot by 55 foot loading space, with 14 foot height clearance for every 10,000 square feet, or fraction thereof, in excess of 2,000 square feet of building floor area for the above mentioned purposes. A 10 foot by 25 foot loading space with a 14 foot height clearance shall be required for any of the above mentioned uses for 2,000 or less square feet of building floor area.