Saw three 2-by-4s to the height of your room and cut a 2-by-4 in half. Assuming you would like your baffles to be 8-by-4 feet, lay two 8-foot 2-by-4s parallel on the floor, 4 feet apart. Screw the 4-foot 2-by-4s to the top and bottom. Screw another 8 foot 2-by-4 in the middle of the baffle.
Nail masonite to one side of the frame. Insert insulation between the frames. Cover the other side of the frame with cloth or a plastic sheet by stapling it to the frame. This will keep the fiberglass in place and will prevent people from touching the itchy fiberglass.
Saw the 3/4-by-8 pine plank in half. Screw one piece to the bottom of the baffle for a base. Screw a castors in each corners of the bottom of the base.
Repeat Steps 1 to 3 to make a second baffle.
Screw the 4-foot hinge in the middle of the two baffles to connect them. This will allow the baffles to open to approximately 120 degrees as well as making them easier to store.