Choose a large frame with cork board backing, or purchase a frame and cork separately.
Purchase enough fabric to cover cork. Cut to size, plus 2" margin on all sides.
Pry staples back from frame using flat knife. Remove frame backing.
Iron fabric. Layer fabric, cork, and frame back (right sides down). Wrap fabric around layers and secure in place with staples or pins. Secure alternating sides, pulling fabric taut as you go. Use one pin in each corner and 3 - 4 on each side.
Fold corners like gift wrap and secure in place. Reassemble fabric-covered board into frame and secure and bend staples back into place with knife.