Column Shape: Rectangular Type RR Sizes

Rating – 2 Hour Rating – 3 Hour  Rating – 4 Hour
Core Size Available Shell Size Weight per foot
(lbs./ft)		 Available Shell Size Weight per foot
(lbs./ft)		 Available Shell Size Weight per foot
(lbs./ft)
TS5X3X0.5 TS8X6X0.188 59 TS9X7X0.25 58 TS10X8X0.25 69
TS5X4X0.5 TS8X8X0.188 76 TS9X9X0.25 76 TS10X10X0.188 80
TS6X4X0.5 TS9X7X0.25 83 TS10X8X0.25 78 TS12X10X0.313 109
TS6X5X0.5 TS9X9X0.25 100 TS10X10X0.188 87 TS12X10X0.313 113
TS7X5X0.5 TS10X8X0.25 105 TS12X10X0.313 116 TS12X10X0.313 116
TS8X4X0.5 TS12X8X0.313 120 TS12X8X0.313 100 TS14X10X0.313 127
TS8X6X0.5 TS12X10X0.313 149 TS12X10X0.313 124 TS14X14X0.313 170
TS9X7X0.5 TS12X10X0.313 163 TS14X14X0.313 185 TS14X14X0.313 185
TS10X4X0.5 TS14X10X0.313 157 TS14X10X0.313 132 TS16X12X0.313 163
TS10X6X0.5 TS14X10X0.313 174 TS14X10X0.313 151 TS16X12X0.313 181
TS10X8X0.5 TS14X14X0.313 223 TS14X14X0.313 196 TS16X16X0.313 295
TS10X8X0.625 TS14X14X0.313 231 TS14X14X0.313 192 TS16X16X0.313 291
TS12X6X0.5 TS16X12X0.313 216 TS16X12X0.313 190 TS20X12X0.375 262
TS12X8X0.375 TS16X12X0.313 225 TS16X12X0.313 218 17X13X0.188 214
TS12X8X0.5 TS16X12X0.313 235 TS16X12X0.313 213 17X13X0.188 209
TS14X6X0.5 TS20X12X0.375 300 TS20X12X0.375 278 TS20X12X0.375 278
TS16X8X0.5 TS20X12X0.375 335 TS20X12X0.375 308 21X13X0.25 272
TS18X6X0.5 HSS24X12X0.5 273 HSS24X12X0.5 246 HSS24X12X0.5 246
TS20X8X0.5 HSS24X12X0.5 313 HSS24X12X0.5 292 25X13X0.25 335
TS20X12X0.5 23X15X0.25 422 24X16X0.25 418 25X17X0.25 440
HSS24X12X5/8 27X15X0.25 512 28X16X0.25 534 29X17X0.25 557
HSS24X12X3/4 27X15X0.25 530 28X16X0.25 552 29X17X0.25 576

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