L 6" x 6' 8" x 8' 10" x 10' 12" x 12' 14" x 14' 16" x 16' 18" x 18' 20" x 20' 22" x 22' 24" x 24' 26" x 26' 28" x 28' 30" x 30' 32" x 32' 34" x 34' 36" x 36'