How wide is the 8 ft. Corrugated Galvanized Steel Utility-Gauge Roof Panel?

The width of these panels are 25.75 inches.  

The width of these panels are 25.75 inches. For siding, the panel offers 24 in. coverage when overlapped 1 corrugation for siding application. When used for roofing, the panel offers 21.5 in. coverage when overlapped the required 2 corrugations for roofing application.