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Black Rock Prefabricated Fireproof Columns (Round Type OS)

Column Shape: Round Type OS 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)
TS4X4X0.5 Pipe8SCH20 69.55 Pipe9SCH40 86.02 Pipe10SCH30 94.45
TS5X5X0.375 Pipe10SCH30 100.56 Pipe10SCH30 100.56 Pipe12SCH40 134.48
TS5X5X0.5 Pipe10SCH30 104.47 Pipe10SCH30 104.47 Pipe12SCH40 138.39
TS6X6X0.375 Pipe11SCH40 128.39 Pipe12SCH40 144.52 Pipe14SCH10 141.26
TS6X6X0.5 Pipe11SCH40 133.48 Pipe12SCH40 149.61 Pipe14SCH10 146.35
TS7X7X0.375 Pipe12SCH40 155.73 Pipe14SCH10 152.47 Pipe16SCH1 178.38
TS7X7X0.5 Pipe12SCH40 162.01 Pipe14SCH10 158.75 Pipe16SCH1 184.66
TS8X8X0.375 Pipe14SCH10 164.87 Pipe16SCH1 190.78 Pipe16SCH1 190.78
TS8X8X0.5 Pipe14SCH10 172.32 Pipe16SCH1 198.23 Pipe16SCH1 198.23
TS9X9X0.375 Pipe16SCH1 204.35 Pipe18SCH10 233.09 Pipe18SCH10 233.09
TS9X9X0.5 Pipe16SCH1 212.99 Pipe18SCH10 241.73 Pipe18SCH10 241.73
TS10X10X0.5 Pipe18SCH10 257.66 Pipe18SCH10 257.66 Pipe20SCH10 289.23
TS12X12X0.5 Pipe20SCH10 324.65 Pipe22SCH10 359.06 Pipe22SCH10 359.06
TS14X14X0.5 Pipe24SCH10 436.44 Pipe24SCH10 436.44 24.3X0.25 444.14
TS16X16X0.5 25.13X0.25 505.72 26.13X0.25 526.3 27.13X0.25 547.58
TS16X16X0.625 25.13X0.25 522.05 26.13X0.25 542.62 27.13X0.25 563.9
HSS-18X18X1/2 27.96X0.25 615.57 28.96X0.25 638.16 29.96X0.25 661.45
HSS-20X20X1/2 30.78X0.25 734.17 31.78X0.25 758.72 32.78X0.25 783.97
HSS-22X22X3/4 33.61X0.25 911 34.61X0.25 937.57 35.61X0.25 964.84
HSS-22X22X7/8 33.61X0.25 933.29 34.61X0.25 959.85 35.61X0.25 987.12

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.

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