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Black Rock Prefabricated Fireproof Columns (Square Type SS)

Column Shape: Square Type SS Sizes

Rating Р2 Hour Rating Р3 Hour  Rating Р4 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)
TS4X4X0.25 TS7X7X0.188 54.66 TS8X8X0.188 68.91 TS9X9X0.25 80.87
TS4X4X0.5 TS7X7X0.188 60.7 TS8X8X0.188 74.95 TS9X9X0.25 77.49
TS5X5X0.5 TS8X8X0.188 79.71 TS9X9X0.25 101.56 TS10X10X0.188 92.34
TS6X6X0.5 TS9X9X0.25 106.87 TS10X10X0.188 118.65 TS12X12X0.313 143.25
TS7X7X0.5 TS10X10X0.188 123.97 TS12X12X0.313 174.73 TS12X12X0.313 149.79
TS8X8X0.5 TS12X12X0.313 178.26 TS12X12X0.313 186.43 TS14X14X0.313 194.27
TS10X10X0.5 TS14X14X0.313 239.79 TS14X14X0.313 249.65 TS16X16X0.313 253.57
TS12X12X0.5 TS16X16X0.313 309.67 TS16X16X0.313 321.22 HSS18X18X0.375 352.14
TS12X12X0.625 TS16X16X0.313 321.28 TS16X16X0.313 332.82 HSS18X18X0.375 346.48
TS14X14X0.5 HSS18X18X0.375 400.3 HSS18X18X0.375 412.99 HSS20X20X0.375 432.96
TS14X14X0.625 HSS18X18X0.375 414.27 HSS18X18X0.375 426.97 HSS20X20X0.375 426.25
TS16X16X0.5 HSS20X20X0.375 488.33 HSS20X20X0.375 502.65 HSS22X22X0.75 606.92
HSS-18X18X3/4 HSS22X22X0.75 710.2 22X22X0.25 607.61 23X23X0.25 636.38
HSS-20X20X3/4 23X23X0.25 672.63 24X24X0.25 715.82 25X25X0.25 746.89
HSS-20X20X7/8 23X23X0.25 692.54 24X24X0.25 735.73 25X25X0.25 766.8
HSS-22X22X3/4 25X25X0.25 785.62 26X26X0.25 832.37 27X27X0.25 865.75
HSS-22X22X7/8 25X25X0.25 807.9 26X26X0.25 854.66 27X27X0.25 888.03

See Complete Sizing Chart

The sizes in the chart to the left are only a small fraction of the number of sizes we offer. To see all sizes, please click the button below and fill out the form. Our complete sizing sheets will be sent to you via email and someone from our team will reach out to you shortly to answer any questions you may have.