Banding and Watertables Banding is a projecting ledge or stringcourse for both aesthetic and practical value, diverting rainwater from the wall. They can double as headers, sills, and cornice. View Photos Banding: BA 121 Printable Drawing Banding: BA 301 Printable Drawing Banding: BA 304 Printable Drawing Watertable: WT 221 Printable Drawing Watertable: WT 532 Printable Drawing