22.5" x 12" (1ft) 22.5" x 24" (2ft) 22.5" x 36" (3ft) 22.5" x 48" (4ft) 22.5" x 60" (5ft) 22.5" x 84" (7ft) 22.5" x 120" (10ft) 22.5" x 180" (15ft) 22.5" x 240" (20ft)