All prices quoted included postage. For UK postage, I use Royal Mail Guaranteed by 1PM. For overseas I use Royal Mail international tracked and signed, or Parcel Force for larger sizes. Custom sizes are priced on request.
Your drawing is packaged securely to protect the face and rear of the drawing, to prevent damage to corners and to waterproof against the elements. It is sandwiched between layers of strong cardboard, and in larger or international drawings, timber braces are added for extra rigidity.