TYPICAL INSTALLATION
WATERWAY AREA (SQUARE FEET) RISE SHORT SPAN INTERMEDIATE SPAN LONG SPAN   12' 14' 16' 20' 24' 28' 32' 36' 4' 42 47 - - - - - - 5' 54 61 71 85 - - - - 6' 66 75 87 105 119 - - - 7' 78 89 103 125 143 - - - 8' 90 103 119 145 167 195 216 - 9' 102 117 135 165 191 223 248 268 10' 114 131 151 185 215 251 280 304 11' - 145 - - - 279 312 340 12' - - - - - - 344 376 13' - - - - - - - 412

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