Use a circular saw to cut a piece of wood into a 12-inch by 22-inch piece or keep it simple and ask an employee at a hardware store to cut the wood for you at the time of purchase.
On the bottom side of the piece of wood, measure 1/2-inch in from each corner and mark your measurements with a pencil.
Place your wheels on the pencil marks and drill the wheels onto the wood with screws. Flip the wood over so that you now have a dolly.
Place one circular pipe flange on the far left center of the dolly. Screw onto the dolly with a drill. Place the second circular pipe flange on the exact opposite spot on the dolly. Screw onto the dolly with a drill.
Gather all three pipe pieces and both elbow fittings. Lay the pieces on the floor to form a "U" shape. The long pieces should be the stands and the small pieces should be the rack. Attach the rack to both stands by twisting the pipes into the elbow fittings.
Stand the U-shaped fixture up and twist the bottoms of the stand into the two circular pipe flanges on the top of the dolly. You now have a clothing rack.