Clean out the metal storage shed to get rid of any extra weight and to keep objects from falling and/or shifting during the move.
Put on leather gloves, and then have two or three of your friends lift one side of the metal storage shed approximately 6 inches off the ground. Slide plywood under the metal storage shed and roll a car jack on the plywood.
Raise the car jack to keep the side of the metal storage shed 6 to 8 inches off the ground. While the side is suspended in the air, slide 2-inch by 4-inch lumber as far as you can under the shed. These 2-inch by 4-inch boards will be your "railings."
Roll several 3/4-inch metal pipes perpendicularly over the 2-inch by 4-inch boards to create "rollers." Space the metal pipes approximately 1 foot apart.
Lower the car jack and remove it, along with the plywood.
Ask each of your assistants to stand on one side of the metal storage shed and begin pushing it. Reposition the 2-inch by 4-inch boards and 3/4-inch pipes as necessary until the shed is moved into its new spot.