Moving L-Shaped Couches to Storage

Need assistance moving two L-shaped couches to storage. The couches are already separated and come with some small pillows for the back. Both the apartment and storage are on the second floor, but there are elevators available for use. A cart is available at the pickup location to help transport the couches to the vehicle. I can assist with the move, but I do not have a vehicle. The couches are not extremely heavy, but they are not light either.