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18' (5.49m) | 21' (6.40m) 24' (7.32m) | 27' (8.23m) 30' (9.14m) | 33' (10.06m) |
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12' x 16' (3.66m x 4.87m) 12' x 20' (3.66m x 6.10m) 12' x 24' (3.66m x 7.32m) 15' x 26' (4.57m x 7.92m) 15' x 30' (4.57m x 9.14m) 18' x 33' (5.49m x 10.06m) |