Step 4: Step 4: Reducing the edge of the board.
Optional: The lip of the ramp in some occasions may be too great for some wheelchairs to get over. If this is the case, you will want to add a short piece of metal to this end of the ramp as well to make the ledge flatter for the wheels of the chair to get over. For this, you will need a sheet of thin metal cut the width of the wood joist and approximately 6" in length. After cutting the metal, drill through the metal and the joist to screw the metal to the end of the ramp. (Note: be careful when carrying these ramps as the metal end may be sharp)