Round HSS: Sizes & Weights

Round HSS by outside diameter and wall — columns, braces, and exposed structure. 189 sizes from the AISC catalog, in lb/ft with kg/m alongside. Deeper reading: HSS Sizes: Square & Rectangular Tube Guide.

HSS1.660 series

Designation	lb/ft	kg/m	Area (in²)
HSS1.660X0.140	2.27	3.4	0.67

HSS1.900 series

Designation	lb/ft	kg/m	Area (in²)
HSS1.900X0.120	2.28	3.4	0.67
HSS1.900X0.145	2.72	4	0.8
HSS1.900X0.188	3.44	5.1	1.01

HSS2.375 series

Designation	lb/ft	kg/m	Area (in²)
HSS2.375X0.125	3.01	4.5	0.88
HSS2.375X0.154	3.66	5.4	1.08
HSS2.375X0.188	4.4	6.5	1.29
HSS2.375X0.218	5.03	7.5	1.48
HSS2.375X0.250	5.68	8.5	1.67

HSS2.500 series

Designation	lb/ft	kg/m	Area (in²)
HSS2.500X0.125	3.17	4.7	0.93
HSS2.500X0.188	4.65	6.9	1.37
HSS2.500X0.250	6.01	8.9	1.77

HSS2.875 series

Designation	lb/ft	kg/m	Area (in²)
HSS2.875X0.125	3.67	5.5	1.08
HSS2.875X0.188	5.4	8	1.59
HSS2.875X0.203	5.8	8.6	1.7
HSS2.875X0.250	7.02	10.4	2.06

HSS3.000 series

Designation	lb/ft	kg/m	Area (in²)
HSS3.000X0.125	3.84	5.7	1.13
HSS3.000X0.134	4.11	6.1	1.21
HSS3.000X0.152	4.63	6.9	1.36
HSS3.000X0.188	5.65	8.4	1.66
HSS3.000X0.203	6.07	9	1.78
HSS3.000X0.216	6.43	9.6	1.89
HSS3.000X0.250	7.35	10.9	2.16

HSS3.500 series

Designation	lb/ft	kg/m	Area (in²)
HSS3.500X0.125	4.51	6.7	1.33
HSS3.500X0.188	6.66	9.9	1.96
HSS3.500X0.203	7.15	10.6	2.1
HSS3.500X0.216	7.58	11.3	2.23
HSS3.500X0.250	8.69	12.9	2.55
HSS3.500X0.300	10.26	15.3	3.02
HSS3.500X0.313	10.66	15.9	3.13

HSS4.000 series

Designation	lb/ft	kg/m	Area (in²)
HSS4.000X0.125	5.18	7.7	1.52
HSS4.000X0.188	7.66	11.4	2.25
HSS4.000X0.220	8.89	13.2	2.61
HSS4.000X0.226	9.12	13.6	2.68
HSS4.000X0.237	9.53	14.2	2.8
HSS4.000X0.250	10	14.9	2.94
HSS4.000X0.313	12.34	18.4	3.63

HSS4.500 series

Designation	lb/ft	kg/m	Area (in²)
HSS4.500X0.125	5.85	8.7	1.72
HSS4.500X0.188	8.67	12.9	2.55
HSS4.500X0.237	10.8	16.1	3.17
HSS4.500X0.337	15	22.3	4.41
HSS4.500X0.375	16.54	24.6	4.86

HSS5.000 series

Designation	lb/ft	kg/m	Area (in²)
HSS5.000X0.125	6.51	9.7	1.91
HSS5.000X0.188	9.67	14.4	2.84
HSS5.000X0.250	12.69	18.9	3.73
HSS5.000X0.258	13.08	19.5	3.84
HSS5.000X0.312	15.64	23.3	4.6
HSS5.000X0.375	18.54	27.6	5.45
HSS5.000X0.500	24.05	35.8	7.07

HSS5.500 series

Designation	lb/ft	kg/m	Area (in²)
HSS5.500X0.258	14.46	21.5	4.25
HSS5.500X0.375	20.55	30.6	6.04
HSS5.500X0.500	26.73	39.8	7.86

HSS5.563 series

Designation	lb/ft	kg/m	Area (in²)
HSS5.563X0.134	7.78	11.6	2.29
HSS5.563X0.188	10.8	16.1	3.17
HSS5.563X0.258	14.63	21.8	4.3
HSS5.563X0.375	20.8	31	6.11
HSS5.563X0.500	27.06	40.3	7.95

HSS6.000 series

Designation	lb/ft	kg/m	Area (in²)
HSS6.000X0.125	7.85	11.7	2.31
HSS6.000X0.188	11.68	17.4	3.43
HSS6.000X0.250	15.37	22.9	4.52
HSS6.000X0.280	17.12	25.5	5.03
HSS6.000X0.312	18.97	28.2	5.57
HSS6.000X0.375	22.55	33.6	6.63
HSS6.000X0.500	29.4	43.8	8.64

HSS6.625 series

Designation	lb/ft	kg/m	Area (in²)
HSS6.625X0.125	8.69	12.9	2.55
HSS6.625X0.188	12.94	19.3	3.8
HSS6.625X0.250	17.04	25.4	5.01
HSS6.625X0.280	18.99	28.3	5.58
HSS6.625X0.312	21.06	31.3	6.19
HSS6.625X0.375	25.06	37.3	7.36
HSS6.625X0.432	28.6	42.6	8.4
HSS6.625X0.500	32.74	48.7	9.62

HSS6.875 series

Designation	lb/ft	kg/m	Area (in²)
HSS6.875X0.188	13.44	20	3.95
HSS6.875X0.250	17.71	26.4	5.2
HSS6.875X0.312	21.89	32.6	6.43
HSS6.875X0.375	26.06	38.8	7.66

HSS7.000 series

Designation	lb/ft	kg/m	Area (in²)
HSS7.000X0.125	9.19	13.7	2.7
HSS7.000X0.188	13.69	20.4	4.02
HSS7.000X0.250	18.04	26.8	5.3
HSS7.000X0.312	22.31	33.2	6.56
HSS7.000X0.375	26.56	39.5	7.81
HSS7.000X0.500	34.74	51.7	10.21

HSS7.500 series

Designation	lb/ft	kg/m	Area (in²)
HSS7.500X0.188	14.7	21.9	4.32
HSS7.500X0.250	19.38	28.8	5.7
HSS7.500X0.312	23.97	35.7	7.04
HSS7.500X0.375	28.56	42.5	8.39
HSS7.500X0.500	37.42	55.7	11

HSS8.625 series

Designation	lb/ft	kg/m	Area (in²)
HSS8.625X0.188	16.96	25.2	4.98
HSS8.625X0.250	22.38	33.3	6.58
HSS8.625X0.322	28.58	42.5	8.4
HSS8.625X0.375	33.07	49.2	9.72
HSS8.625X0.500	43.43	64.6	12.76
HSS8.625X0.625	53.45	79.5	15.71

HSS9.625 series

Designation	lb/ft	kg/m	Area (in²)
HSS9.625X0.188	18.97	28.2	5.57
HSS9.625X0.250	25.06	37.3	7.36
HSS9.625X0.312	31.06	46.2	9.13
HSS9.625X0.375	37.08	55.2	10.9
HSS9.625X0.500	48.77	72.6	14.33
HSS9.625X0.625	60.13	89.5	17.67

HSS10.000 series

Designation	lb/ft	kg/m	Area (in²)
HSS10.000X0.188	19.72	29.3	5.8
HSS10.000X0.250	26.06	38.8	7.66
HSS10.000X0.312	32.31	48.1	9.5
HSS10.000X0.375	38.58	57.4	11.34
HSS10.000X0.500	50.78	75.6	14.92
HSS10.000X0.625	62.64	93.2	18.41

HSS10.750 series

Designation	lb/ft	kg/m	Area (in²)
HSS10.750X0.188	21.17	31.5	6.22
HSS10.750X0.250	28.06	41.8	8.25
HSS10.750X0.313	34.87	51.9	10.25
HSS10.750X0.375	41.59	61.9	12.22
HSS10.750X0.500	54.79	81.5	16.1
HSS10.750X0.625	67.65	100.7	19.88

HSS11.750 series

Designation	lb/ft	kg/m	Area (in²)
HSS11.750X0.250	30.73	45.7	9.03
HSS11.750X0.337	41.12	61.2	12.08
HSS11.750X0.375	45.6	67.9	13.4
HSS11.750X0.500	60.13	89.5	17.67
HSS11.750X0.625	74.33	110.6	21.84

HSS12.000 series

Designation	lb/ft	kg/m	Area (in²)
HSS12.000X0.250	31.4	46.7	9.23
HSS12.000X0.375	46.6	69.3	13.69
HSS12.000X0.500	61.47	91.5	18.06
HSS12.000X0.625	76	113.1	22.33

HSS12.750 series

Designation	lb/ft	kg/m	Area (in²)
HSS12.750X0.188	25.18	37.5	7.4
HSS12.750X0.250	33.41	49.7	9.82
HSS12.750X0.375	49.61	73.8	14.58
HSS12.750X0.500	65.48	97.4	19.24
HSS12.750X0.625	81.01	120.6	23.81
HSS12.750X0.750	96.21	143.2	28.27

HSS13.375 series

Designation	lb/ft	kg/m	Area (in²)
HSS13.375X0.188	26.43	39.3	7.77
HSS13.375X0.250	35.08	52.2	10.31
HSS13.375X0.313	43.64	64.9	12.82
HSS13.375X0.375	52.11	77.5	15.31
HSS13.375X0.500	68.82	102.4	20.22
HSS13.375X0.625	85.19	126.8	25.04

HSS14.000 series

Designation	lb/ft	kg/m	Area (in²)
HSS14.000X0.188	27.69	41.2	8.14
HSS14.000X0.250	36.75	54.7	10.8
HSS14.000X0.312	45.65	67.9	13.42
HSS14.000X0.375	54.62	81.3	16.05
HSS14.000X0.500	72.16	107.4	21.21
HSS14.000X0.625	89.36	133	26.26
HSS14.000X0.750	106.23	158.1	31.22
HSS14.000X0.875	122.77	182.7	36.08
HSS14.000X1.000	138.97	206.8	40.84

HSS16.000 series

Designation	lb/ft	kg/m	Area (in²)
HSS16.000X0.250	42.09	62.6	12.37
HSS16.000X0.312	52.32	77.9	15.38
HSS16.000X0.375	62.64	93.2	18.41
HSS16.000X0.438	72.87	108.4	21.41
HSS16.000X0.500	82.85	123.3	24.35
HSS16.000X0.625	103	153.3	30.27
HSS16.000X0.750	122.27	182	35.93
HSS16.000X0.875	141.48	210.5	41.58
HSS16.000X1.000	160.35	238.6	47.12

HSS18.000 series

Designation	lb/ft	kg/m	Area (in²)
HSS18.000X0.250	47.44	70.6	13.94
HSS18.000X0.313	59.09	87.9	17.37
HSS18.000X0.375	70.66	105.2	20.77
HSS18.000X0.500	93.54	139.2	27.49
HSS18.000X0.625	116.09	172.8	34.12
HSS18.000X0.750	138.3	205.8	40.64
HSS18.000X0.875	160.19	238.4	47.08
HSS18.000X1.000	181.73	270.4	53.41

HSS20.000 series

Designation	lb/ft	kg/m	Area (in²)
HSS20.000X0.250	52.78	78.5	15.51
HSS20.000X0.313	65.77	97.9	19.33
HSS20.000X0.375	78.67	117.1	23.12
HSS20.000X0.500	104	154.8	30.56
HSS20.000X0.625	129.45	192.6	38.04
HSS20.000X0.750	154.34	229.7	45.36
HSS20.000X0.875	178.89	266.2	52.57
HSS20.000X1.000	203.11	302.3	59.69

HSS22.000 series

Designation	lb/ft	kg/m	Area (in²)
HSS22.000X0.313	72.45	107.8	21.29
HSS22.000X0.375	86.69	129	25.48
HSS22.000X0.500	114.92	171	33.77
HSS22.000X0.625	142.81	212.5	41.97
HSS22.000X0.750	170.37	253.5	50.07

HSS24.000 series

Designation	lb/ft	kg/m	Area (in²)
HSS24.000X0.313	79.13	117.8	23.25
HSS24.000X0.375	94.71	140.9	27.83
HSS24.000X0.500	125.61	186.9	36.91
HSS24.000X0.625	156.18	232.4	45.9
HSS24.000X0.750	186.41	277.4	54.78
HSS24.000X0.875	216.31	321.9	63.57
HSS24.000X1.000	245.87	365.9	72.26

HSS26.000 series

Designation	lb/ft	kg/m	Area (in²)
HSS26.000X0.313	85.81	127.7	25.22
HSS26.000X0.375	102.73	152.9	30.19
HSS26.000X0.500	136.3	202.8	40.06
HSS26.000X0.625	169.54	252.3	49.82
HSS26.000X0.750	202.44	301.3	59.49

HSS28.000 series

Designation	lb/ft	kg/m	Area (in²)
HSS28.000X0.375	110.74	164.8	32.54
HSS28.000X0.500	146.99	218.7	43.2
HSS28.000X0.625	182.9	272.2	53.75
HSS28.000X0.750	218.48	325.1	64.21
HSS28.000X0.875	253.72	377.6	74.56
HSS28.000X1.000	288.63	429.5	84.82

Areas marked as computed on the individual size pages are derived from the tabulated weight and steel density rather than read from the section table.

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