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Black Rock Prefabricated Fireproof Columns (Square Type SO)

Column Shape: Square Type SO 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)
Pipe5SCH120 TS8X8X0.188 79 9X9X0.188 88.67 TS10X10X0.188 99.64
Pipe6SCH80 9X9X0.188 95.73 TS10X10X0.188 106.7 TS12X12X0.313 147.42
Pipe6SCH120 9X9X0.188 101.06 TS10X10X0.188 112.04 TS12X12X0.313 152.75
Pipe8SCH5 TS12X12X0.313 148.62 12X12X0.188 132 TS14X14X0.313 179.46
Pipe9SCH40 12X12X0.188 157.09 TS14X14X0.313 204.56 14X14X0.188 184.98
Pipe10SCH10 TS14X14X0.313 204.66 TS16X16X0.313 239.12 TS16X16X0.313 239.12
Pipe12SCH160 TS16X16X0.313 359.09 17X17X0.188 353.66 18X18X0.188 371.67
Pipe14SCH140 17X17X0.188 376.06 18X18X0.188 394.07 19X19X0.188 412.98
Pipe14SCH1460 17X17X0.188 389.16 18X18X0.188 407.16 19X19X0.188 426.08
Pipe16SCH160 19X19X0.188 492.88 20X20X0.25 526.83 21X21X0.25 548.29
Pipe18SCH160 21X21X0.25 623.64 22X22X0.25 646 23X23X0.25 669.27
Pipe20SCH160 23X23X0.25 753.57 24X24X0.25 777.74 25X25X0.25 802.81
Pipe22SCH160 25X25X0.25 891.56 26X26X0.25 917.53 27X27X0.25 944.41
Pipe24SCH160 27X27X0.25 1050.29 28X28X0.25 1078.07 29X29X0.25 1106.75

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.