To get uprights up or down stairs, remove the casters and front legs (if possible). Pad the stairs and slide the piano along. Without the wheels, there is no coaxing the casters over each tread. A little trick at the bottom of the stairs is to tip the piano on end, either onto a dolly or another pad. For going up, tip the piano on end onto a dolly. Roll the piano up to the stairs and lower it onto the staircase, this places you a good way along without struggling the first few steps. Coming down, tip on end onto a pad. rotate the piano 90 degrees and tip down to a dolly; alternatively, tip onto a dolly. If it is a hallway, roll the piano away from the stairs enough to tip onto the dolly.
For moving equipment, contact New Haven Moving Equipment for dollies, pads and straps. A grand board is a must as is the MoonDog Grand Piano Tilter (I can't say enough good things about this tool).
The item in the photo might be more for organs or a grand, I'd never use something like that for an upright.
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Regards,
Jon Page