Which Arrow carport does an enclosure kit fit?

Each enclosure kit is made for an Arrow steel carport 9 ft tall and is chosen by the carport's length — 15, 20, 24 or 29 ft. Match the length of your carport and the colour of its roof; the 10, 12 and 20 ft widths all take the same kit, because the panels run along the long side. The walls stand 96.75 in high and fasten to the carport frame on either side, with the hardware and the instructions included. The carport itself is not included.