I moved my 600 lb safe down the basement stairs using a 700 lb capacity appliance dolly and two friends. Going down was easy. Essentially a controlled drop using the stair rollers on the back of the dolly. When it had to come out? I rented heavy duty vacuum handles from the local tool rental place. Smooth finish safe allowed attachment. With handles for extra hand holds and dolly 4 college football players had it up stairs in about 5 minutes! One of the local gun shops moves safes with a stair walking dolly but didn't have enough room in at top of stairs for it to be set up.