Rectangle Hollow structural sections (HSS) Table Chart per ASTM 1085 Table Chart (2024)

Rectangle Structural Tube Per. ASTM 1085 Table Chart

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Rectangle Structural Tube Per. ASTM 1085, table chart HSS Hollow Structural Section Square Structural Tube. This specification covers cold-formed welded carbon steel hollow structural sections (HSS) for welded or bolted construction.

Where:

h = Height
w = Width
t = Wall thickness
I = Area moment of inertia
S = Elastic section modulus
Z = Plastic section modulus
J = Torsional stiffness of cross section
C = Tortional shear constant or cross section
A = Section area
r = Radius of Gyration

Notes:

Cold formed and welded
Yield Stress Round 50 ksi min - 70 ksi max
Tensile stress 65 ksi min
Wall thickness -5%
Mass tolerance -3.5%
CVN 25 ft-lbs at 40 degrees F
Heat treating optional

Rectangle Square Hollow structural sections (HSS) per ASTM 1085 Table Chart

Shape h x b x t	Design Wall Thickness, t in.	Nominal Wt lb/ft	Area, A in²	b/t	h/t	Axis x - x				Axis Y-Y				Torsion		Surface Area
						I	S	r	Z	I	S	r	Z	J	C	Surface Area
						in⁴	in³	in.	in³	in⁴	in³	in.	in³	in⁴	in³	ft²/ft
24 x 12 x 3/4	0.750	171.16	50.3	12.4	28.4	3650	304	8.52	382	1240	207	4.97	235	3030	391	5.79
x 5/8	0.625	144.39	42.4	15.6	34.8	3130	261	8.59	325	1070	178	5.02	201	2590	331	5.82
x 1/2	0.500	116.91	34.4	20.4	44.4	2580	215	8.66	266	883	147	5.07	164	2120	270	5.86
20 x 12 x 3/4	0.750	150.75	44.3	12.4	23.1	2320	232	7.24	287	1050	175	4.87	202	2360	323	5.12
x 5/8	0.625	127.37	37.4	15.6	28.4	2000	200	7.31	245	904	151	4.92	172	2010	275	5.15
x 1/2	0.500	103.30	30.4	20.4	36.4	1650	165	7.37	201	750	125	4.97	141	1650	224	5.19
x 3/8	0.375	78.52	23.1	28.8	50.1	1280	128	7.44	154	583	97.2	5.02	109	1270	171	5.23
x 5/16	0.313	65.87	19.4	35.1	60.7	1080	108	7.46	130	495	82.5	5.05	91.9	1070	144	5.24
20 x 8 x 5/8	0.625	110.36	32.4	9.20	28.4	1530	153	6.87	197	358	89.5	3.32	103	973	178	4.49
x 1/2	0.500	89.68	26.4	12.4	36.4	1270	127	6.94	162	300	75.0	3.37	84.7	806	146	4.52
x 3/8	0.375	68.31	20.1	18.1	50.1	988	98.8	7.01	125	236	59.0	3.43	65.6	625	112	4.56
x 5/16	0.313	57.36	16.9	22.4	60.7	840	84.0	7.05	106	202	50.5	3.46	55.6	530	94.6	4.58
20 x 4 x 1/2	0.500	76.07	22.4	4.40	36.4	889	88.9	6.30	123	61.6	30.8	1.66	36.0	205	67.8	3.86
x 3/8	0.375	58.10	17.1	7.47	50.1	699	69.9	6.39	95.3	50.3	25.2	1.72	28.5	165	53.2	3.89
x 5/16	0.313	48.86	14.4	9.58	60.7	597	59.7	6.44	80.9	43.7	21.8	1.74	24.4	143	45.3	3.91
x 1/4	0.250	39.43	11.6	12.8	76.8	488	48.8	6.49	65.7	36.4	18.2	1.77	20.0	118	37.0	3.93
18 x 6 x 5/8	0.625	93.34	27.4	6.00	25.2	977	109	5.97	144	166	55.3	2.46	64.6	489	116	3.82
x 1/2	0.500	76.07	22.4	8.40	32.4	818	90.9	6.04	119	142	47.3	2.52	53.9	410	95.8	3.86
x 3/8	0.375	58.10	17.1	12.8	44.8	641	71.2	6.12	92.2	113	37.7	2.57	42.1	322	74.2	3.89
x 5/16	0.313	48.86	14.4	16.0	54.3	547	60.8	6.16	78.2	97.1	32.4	2.60	35.8	275	62.8	3.91
x 1/4	0.250	39.43	11.6	20.8	68.8	447	49.7	6.21	63.5	80.0	26.7	2.63	29.2	224	51.0	3.93
16 x 12 x 3/4	0.750	130.33	38.3	12.4	17.7	1340	168	5.91	205	856	143	4.73	168	1710	256	4.45
x 5/8	0.625	110.36	32.4	15.6	22.0	1160	145	5.98	175	742	124	4.79	144	1460	218	4.49
x 1/2	0.500	89.68	26.4	20.4	28.4	962	120	6.04	144	618	103	4.84	118	1200	178	4.52
x 3/8	0.375	68.31	20.1	28.8	39.5	748	93.5	6.10	111	482	80.3	4.90	91.3	922	136	4.56
x 5/16	0.313	57.36	16.9	35.1	47.9	636	79.5	6.13	93.9	410	68.3	4.93	77.3	779	115	4.58

Shape h x b x t	Design Wall Thickness, t in.	Nominal Wt lb/ft	Area, A in²	b/t	h/t	Axis x - x				Axis Y-Y				Torsion		Surface Area
						I	S	r	Z	I	S	r	Z	J	C	Surface Area
						in⁴	in³	in.	in³	in⁴	in³	in.	in³	in⁴	in³	ft²/ft
16 x 8 x 5/8	0.625	93.34	27.4	9.20	22.0	863	108	5.61	137	290	72.5	3.25	84.1	723	141	3.82
x 1/2	0.500	76.07	22.4	12.4	28.4	722	90.2	5.68	113	244	61.0	3.30	69.7	599	116	3.86
x 3/8	0.375	58.10	17.1	18.1	39.5	565	70.6	5.75	87.6	193	48.2	3.36	54.2	465	89.2	3.89
x 5/16	0.313	48.86	14.4	22.4	47.9	482	60.2	5.79	74.3	165	41.2	3.39	46.0	395	75.4	3.91
x 1/4	0.250	39.43	11.6	28.8	60.8	393	49.1	5.82	60.3	135	33.8	3.41	37.4	321	61.0	3.93
16 x 4 x 5/8	0.625	76.33	22.4	2.80	22.0	568	71.0	5.04	98.5	56.4	28.2	1.59	34.2	182	63.9	3.15
x 1/2	0.500	62.46	18.4	4.40	28.4	481	60.1	5.11	82.2	49.3	24.6	1.64	29.0	157	53.8	3.19
x 3/8	0.375	47.90	14.1	7.47	39.5	382	47.8	5.21	64.2	40.4	20.2	1.69	23.0	127	42.3	3.23
x 5/16	0.313	40.35	11.9	9.58	47.9	328	41.0	5.25	54.6	35.2	17.6	1.72	19.8	110	36.1	3.24
x 1/4	0.250	32.63	9.59	12.8	60.8	269	33.6	5.30	44.5	29.3	14.6	1.75	16.2	90.6	29.5	3.26
x 3/16	0.188	24.73	7.29	18.1	81.9	208	26.0	5.34	34.1	23.0	11.5	1.78	12.5	70.3	22.6	3.28
14 x 10 x 5/8	0.625	93.34	27.4	12.4	18.8	728	104	5.15	127	431	86.2	3.97	101	885	156	3.82
x 1/2	0.500	76.07	22.4	16.4	24.4	608	86.9	5.21	105	361	72.2	4.01	83.6	730	128	3.86
x 3/8	0.375	58.10	17.1	23.5	34.1	476	68.0	5.28	81.5	284	56.8	4.08	64.8	564	98.2	3.89
x 5/16	0.313	48.86	14.4	28.7	41.5	406	58.0	5.31	69.1	242	48.4	4.10	55.0	478	82.9	3.91
x 1/4	0.250	39.43	11.6	36.8	52.8	331	47.3	5.34	56.0	198	39.6	4.13	44.6	387	67.0	3.93
14 x 6 x 5/8	0.625	76.33	22.4	6.00	18.8	504	72.0	4.74	94.0	130	43.3	2.41	51.2	352	88.9	3.15
x 1/2	0.500	62.46	18.4	8.40	24.4	426	60.9	4.81	78.3	111	37.0	2.46	42.9	296	73.8	3.19
x 3/8	0.375	47.90	14.1	12.8	34.1	337	48.1	4.89	61.1	89.1	29.7	2.51	33.6	233	57.3	3.23
x 5/16	0.313	40.35	11.9	16.0	41.5	289	41.3	4.93	51.9	76.9	25.6	2.54	28.7	199	48.6	3.24
x 1/4	0.250	32.63	9.59	20.8	52.8	237	33.9	4.97	42.3	63.4	21.1	2.57	23.4	162	39.5	3.26
x 3/16	0.188	24.73	7.29	28.7	71.3	182	26.0	5.00	32.4	49.2	16.4	2.60	18.0	125	30.2	3.28
14 x 4 x 5/8	0.625	67.82	19.9	2.80	18.8	392	56.0	4.44	77.3	49.2	24.6	1.57	30.0	154	55.5	2.82
x 1/2	0.500	55.66	16.4	4.40	24.4	335	47.9	4.52	64.8	43.1	21.6	1.62	25.5	134	46.8	2.86
x 3/8	0.375	42.79	12.6	7.47	34.1	267	38.1	4.60	50.8	35.4	17.7	1.68	20.3	108	36.8	2.89
x 5/16	0.313	36.10	10.6	9.58	41.5	230	32.9	4.66	43.4	30.9	15.4	1.71	17.4	93.2	31.5	2.91
x 1/4	0.250	29.23	8.59	12.8	52.8	189	27.0	4.69	35.4	25.8	12.9	1.73	14.3	77.0	25.7	2.93
x 3/16	0.188	22.18	6.54	18.1	71.3	147	21.0	4.74	27.2	20.3	10.2	1.76	11.1	59.8	19.8	2.95

Shape h x b x t	Design Wall Thickness, t in.	Nominal Wt lb/ft	Area, A in²	b/t	h/t	Axis x - x				Axis Y-Y				Torsion		Surface Area
						I	S	r	Z	I	S	r	Z	J	C	Surface Area
						in⁴	in³	in.	in³	in⁴	in³	in.	in³	in⁴	in³	ft²/ft
12 x 10 x 1/2	0.500	69.27	20.4	16.4	20.4	419	69.8	4.53	83.9	316	63.2	3.94	74.1	581	109	3.52
x 3/8	0.375	53.00	15.6	23.5	28.8	330	55.0	4.60	65.2	249	49.8	4.00	57.6	450	83.7	3.56
x 5/16	0.313	44.60	13.1	28.7	35.1	282	47.0	4.64	55.3	213	42.6	4.03	48.9	381	70.8	3.58
x 1/4	0.250	36.03	10.6	36.8	44.8	230	38.3	4.66	44.9	174	34.8	4.05	39.7	309	57.2	3.60
12 x 8 x 5/8	0.625	76.33	22.4	9.20	15.6	419	69.8	4.32	87.1	221	55.2	3.14	65.6	481	104	3.15
x 1/2	0.500	62.46	18.4	12.4	20.4	353	58.8	4.38	72.4	188	47.0	3.20	54.7	401	85.8	3.19
x 3/8	0.375	47.90	14.1	18.1	28.8	279	46.5	4.45	56.5	149	37.2	3.25	42.7	312	66.3	3.23
x 5/16	0.313	40.35	11.9	22.4	35.1	239	39.8	4.48	48.0	128	32.0	3.28	36.4	265	56.1	3.24
x 1/4	0.250	32.63	9.59	28.8	44.8	196	32.7	4.52	39.1	105	26.2	3.31	29.6	216	45.5	3.26
x 3/16	0.188	24.73	7.29	39.4	60.6	151	25.2	4.55	29.9	81.3	20.3	3.34	22.7	165	34.7	3.28
12 x 6 x 5/8	0.625	67.82	19.9	6.00	15.6	338	56.3	4.12	72.9	112	37.3	2.37	44.5	286	75.5	2.82
x 1/2	0.500	55.66	16.4	8.40	20.4	287	47.8	4.18	60.9	96.0	32.0	2.42	37.4	241	62.8	2.86
x 3/8	0.375	42.79	12.6	12.8	28.8	228	38.0	4.25	47.7	77.3	25.8	2.48	29.4	190	48.8	2.89
x 5/16	0.313	36.10	10.6	16.0	35.1	196	32.7	4.30	40.7	66.7	22.2	2.51	25.1	162	41.5	2.91
x 1/4	0.250	29.23	8.59	20.8	44.8	161	26.8	4.33	33.2	55.2	18.4	2.53	20.6	132	33.7	2.93
x 3/16	0.188	22.18	6.54	28.7	60.6	125	20.8	4.37	25.5	42.9	14.3	2.56	15.8	102	25.8	2.95
12 x 4 x 5/8	0.625	59.32	17.4	2.80	15.6	257	42.8	3.84	58.6	42.0	21.0	1.55	25.8	127	47.0	2.49
x 1/2	0.500	48.85	14.4	4.40	20.4	221	36.8	3.92	49.4	37.0	18.5	1.60	22.0	110	39.8	2.52
x 3/8	0.375	37.69	11.1	7.47	28.8	178	29.7	4.00	39.0	30.5	15.2	1.66	17.6	89.0	31.4	2.56
x 5/16	0.313	31.84	9.37	9.58	35.1	153	25.5	4.04	33.4	26.7	13.4	1.69	15.1	77.0	26.9	2.58
x 1/4	0.250	25.82	7.59	12.8	44.8	127	21.2	4.09	27.3	22.3	11.2	1.71	12.5	63.6	22.0	2.60
x 3/16	0.188	19.63	5.8	18.1	60.6	98.4	16.4	4.12	21.0	17.5	8.75	1.74	9.66	49.4	16.9	2.61
12 x 3-1/2 x 3/8	0.375	36.41	10.7	6.13	28.8	165	27.5	3.93	36.8	22.4	12.8	1.45	14.9	68.3	27.0	2.48
x 5/16	0.313	30.78	9.06	7.98	35.1	143	23.8	3.97	31.6	19.7	11.3	1.47	12.8	59.4	23.2	2.49
12 x 3 x 5/16	0.313	29.72	8.75	6.38	35.1	132	22.0	3.88	29.7	13.8	9.20	1.26	10.6	43.7	19.5	2.41
x 1/4	0.250	24.12	7.09	8.80	44.8	109	18.2	3.92	24.4	11.7	7.80	1.28	8.80	36.5	16.1	2.43
x 3/16	0.188	18.35	5.41	12.8	60.6	85	14.2	3.96	18.8	9.30	6.20	1.31	6.86	28.7	12.5	2.45

Shape h x b x t	Design Wall Thickness, t in.	Nominal Wt lb/ft	Area, A in²	b/t	h/t	Axis x - x				Axis Y-Y				Torsion		Surface Area
						I	S	r	Z	I	S	r	Z	J	C	Surface Area
						in⁴	in³	in.	in³	in⁴	in³	in.	in³	in⁴	in³	ft²/ft
12 x 2 x 5/16	0.313	27.59	8.12	3.19	35.1	111	18.5	3.70	26.1	5.33	5.33	0.810	6.39	18.4	12.2	2.24
x 1/4	0.250	22.42	6.59	4.80	44.8	92.2	15.4	3.74	21.4	4.62	4.62	0.837	5.38	15.9	10.2	2.26
x 3/16	0.188	17.08	5.03	7.44	60.6	72.2	12.0	3.79	16.6	3.77	3.77	0.866	4.25	12.8	8.02	2.28
10 x 8 x 5/8	0.625	67.82	19.9	9.20	12.4	266	53.2	3.66	65.9	187	46.8	3.07	56.4	367	85.5	2.82
x 1/2	0.500	55.66	16.4	12.4	16.4	226	45.2	3.71	55.1	160	40.0	3.12	47.2	306	70.8	2.86
x 3/8	0.375	42.79	12.6	18.1	23.5	180	36.0	3.78	43.1	127	31.8	3.17	37.0	239	54.8	2.89
x 5/16	0.313	36.10	10.6	22.4	28.7	154	30.8	3.81	36.8	110	27.5	3.22	31.6	203	46.5	2.91
x 1/4	0.250	29.23	8.59	28.8	36.8	127	25.4	3.85	30.0	90.2	22.6	3.24	25.8	166	37.7	2.93
x 3/16	0.188	22.18	6.54	39.4	50.0	98.1	19.6	3.87	23.0	69.8	17.4	3.27	19.8	127	28.8	2.95
10 x 6 x 5/8	0.625	59.32	17.4	6.00	12.4	211	42.2	3.48	54.2	93.6	31.2	2.32	37.7	221	62.0	2.49
x 1/2	0.500	48.85	14.4	8.40	16.4	181	36.2	3.55	45.6	80.9	27.0	2.37	31.9	187	51.8	2.52
x 3/8	0.375	37.69	11.1	12.8	23.5	145	29.0	3.61	35.9	65.4	21.8	2.43	25.2	147	40.4	2.56
x 5/16	0.313	31.84	9.37	16.0	28.7	125	25.0	3.65	30.7	56.6	18.9	2.46	21.6	126	34.4	2.58
x 1/4	0.250	25.82	7.59	20.8	36.8	103	20.6	3.68	25.1	46.9	15.6	2.49	17.7	103	28.0	2.60
x 3/16	0.188	19.63	5.78	28.7	50.0	80.0	16.0	3.72	19.3	36.5	12.2	2.51	13.6	79.3	21.4	2.61
10 x 5 x 3/8	0.375	35.13	10.3	10.1	23.5	128	25.6	3.53	32.3	42.9	17.2	2.04	19.9	107	33.2	2.39
x 5/16	0.313	29.72	8.75	12.8	28.7	110	22.0	3.55	27.7	37.3	14.9	2.06	17.0	91.6	28.3	2.41
x 1/4	0.250	24.12	7.09	16.8	36.8	91.2	18.2	3.59	22.7	31.1	12.4	2.09	14.0	75.2	23.1	2.43
x 3/16	0.188	18.35	5.41	23.4	50.0	70.9	14.2	3.62	17.5	24.3	9.72	2.12	10.8	58.1	17.7	2.45
10 x 4 x 5/8	0.625	50.81	14.9	2.80	12.4	156	31.2	3.24	42.5	34.8	17.4	1.53	21.6	100	38.6	2.15
x 1/2	0.500	42.05	12.4	4.40	16.4	136	27.2	3.31	36.1	30.8	15.4	1.58	18.5	86.9	32.8	2.19
x 3/8	0.375	32.58	9.58	7.47	23.5	110	22.0	3.39	28.7	25.5	12.8	1.63	14.9	70.4	26.0	2.23
x 5/16	0.313	27.59	8.12	9.58	28.7	95.6	19.1	3.43	24.6	22.4	11.2	1.66	12.8	60.9	22.2	2.24
x 1/4	0.250	22.42	6.59	12.8	36.8	79.3	15.9	3.47	20.2	18.8	9.40	1.69	10.6	50.4	18.2	2.26
x 3/16	0.188	17.08	5.03	18.1	50.0	61.9	12.4	3.51	15.6	14.8	7.40	1.72	8.22	39.2	14.0	2.28

Shape h x b x t	Design Wall Thickness, t in.	Nominal Wt lb/ft	Area, A in²	b/t	h/t	Axis x - x				Axis Y-Y				Torsion		Surface Area
						I	S	r	Z	I	S	r	Z	J	C	Surface Area
						in⁴	in³	in.	in³	in⁴	in³	in.	in³	in⁴	in³	ft²/ft
10 x 3-1/2 x 1/2	0.500	40.34	11.9	3.40	16.4	124	24.8	3.23	33.7	22.3	12.7	1.37	15.5	66.2	28.0	2.11
x 3/8	0.375	31.31	9.20	6.13	23.5	102	20.4	3.33	26.9	18.7	10.7	1.43	12.5	54.3	22.4	2.14
x 5/16	0.313	26.53	7.81	7.98	28.7	88.2	17.6	3.36	23.1	16.5	9.43	1.45	10.8	47.3	19.2	2.16
x 1/4	0.250	21.57	6.34	10.8	36.8	73.4	14.7	3.40	19.0	13.9	7.94	1.48	8.98	39.3	15.8	2.18
x 3/16	0.188	16.44	4.84	15.4	50.0	57.4	11.5	3.44	14.7	11.0	6.29	1.51	6.99	30.7	12.2	2.20
10 x 3 x 3/8	0.375	30.03	8.83	4.80	23.5	92.8	18.6	3.24	25.1	13.0	8.67	1.21	10.3	39.8	18.7	2.06
x 5/16	0.313	25.46	7.49	6.38	28.7	80.9	16.2	3.29	21.6	11.5	7.67	1.24	8.93	34.9	16.2	2.08
x 1/4	0.250	20.72	6.09	8.80	36.8	67.4	13.5	3.33	17.8	9.79	6.53	1.27	7.42	29.3	13.3	2.10
x 3/16	0.188	15.80	4.66	12.8	50.0	52.8	10.6	3.37	13.8	7.82	5.21	1.30	5.80	23.0	10.3	2.11
10 x 2 x 3/8	0.375	27.48	8.08	2.13	23.5	75.4	15.1	3.05	21.5	4.87	4.87	0.776	6.05	16.5	11.5	1.89
x 5/16	0.313	23.34	6.87	3.19	28.7	66.2	13.2	3.10	18.6	4.43	4.43	0.803	5.34	14.9	10.1	1.91
x 1/4	0.250	19.02	5.59	4.80	36.8	55.6	11.1	3.15	15.4	3.85	3.85	0.830	4.50	12.8	8.47	1.93
x 3/16	0.188	14.53	4.28	7.44	50.0	43.8	8.8	3.20	11.9	3.15	3.15	0.858	3.57	10.4	6.66	1.95
9 x 7 x 5/8	0.625	59.32	17.4	7.60	10.8	183	40.7	3.24	51.0	123	35.1	2.66	42.8	248	65.8	2.49
x 1/2	0.500	48.85	14.4	10.4	14.4	157	34.9	3.30	42.9	106	30.3	2.71	36.1	209	54.8	2.52
x 3/8	0.375	37.69	11.1	15.5	20.8	126	28.0	3.37	33.8	85.2	24.3	2.77	28.4	164	42.7	2.56
x 5/16	0.313	31.84	9.37	19.2	25.6	108	24.0	3.40	28.9	73.6	21.0	2.80	24.3	140	36.2	2.58
x 1/4	0.250	25.82	7.59	24.8	32.8	89.4	19.9	3.43	23.6	60.8	17.4	2.83	19.9	114	29.5	2.60
x 3/16	0.188	19.63	5.78	34.0	44.7	69.4	15.4	3.47	18.2	47.3	13.5	2.86	15.3	87.9	22.5	2.61
9 x 5 x 5/8	0.625	50.81	14.9	4.40	10.8	139	30.9	3.05	40.5	54.1	21.6	1.91	26.6	135	44.9	2.15
x 1/2	0.500	42.05	12.4	6.40	14.4	121	26.9	3.12	34.4	47.4	19.0	1.96	22.7	115	37.8	2.19
x 3/8	0.375	32.58	9.58	10.1	20.8	97.8	21.7	3.20	27.3	38.9	15.6	2.02	18.1	92.2	29.7	2.23
x 5/16	0.313	27.59	8.12	12.8	25.6	84.7	18.8	3.23	23.4	33.9	13.6	2.04	15.6	79.3	25.4	2.24
x 1/4	0.250	22.42	6.59	16.8	32.8	70.3	15.6	3.27	19.3	28.2	11.3	2.07	12.8	65.2	20.7	2.26
x 3/16	0.188	17.08	5.03	23.4	44.7	54.8	12.2	3.30	14.9	22.1	8.84	2.10	9.93	50.4	15.9	2.28
9 x 3 x 1/2	0.500	35.24	10.4	2.40	14.4	84.5	18.8	2.85	25.9	13.7	9.13	1.15	11.3	41.6	20.8	1.86
x 3/8	0.375	27.48	8.08	4.80	20.8	69.9	15.5	2.94	20.9	11.7	7.80	1.20	9.29	34.9	16.8	1.89
x 5/16	0.313	23.34	6.87	6.38	25.6	61.1	13.6	2.98	18.0	10.4	6.93	1.23	8.09	30.6	14.5	1.91
x 1/4	0.250	19.02	5.59	8.80	32.8	51.1	11.4	3.02	14.9	8.85	5.90	1.26	6.73	25.6	12.0	1.93
x 3/16	0.188	14.53	4.28	12.8	44.7	40.2	8.93	3.06	11.6	7.07	4.71	1.29	5.27	20.2	9.29	1.95

Shape h x b x t	Design Wall Thickness, t in.	Nominal Wt lb/ft	Area, A in²	b/t	h/t	Axis x - x				Axis Y-Y				Torsion		Surface Area
						I	S	r	Z	I	S	r	Z	J	C	Surface Area
						in⁴	in³	in.	in³	in⁴	in³	in.	in³	in⁴	in³	ft²/ft
8 x 6 x 5/8	0.625	50.81	14.9	6.00	9.20	119	29.8	2.83	38.0	75.5	25.2	2.25	31.0	158	48.6	2.15
x 1/2	0.500	42.05	12.4	8.40	12.4	103	25.8	2.88	32.2	65.7	21.9	2.30	26.4	135	40.8	2.19
x 3/8	0.375	32.58	9.58	12.8	18.1	83.7	20.9	2.96	25.6	53.5	17.8	2.36	21.0	107	32.0	2.23
x 5/16	0.313	27.59	8.12	16.0	22.4	72.5	18.1	2.99	22.0	46.5	15.5	2.39	18.0	91.4	27.2	2.24
x 1/4	0.250	22.42	6.59	20.8	28.8	60.1	15.0	3.02	18.0	38.6	12.9	2.42	14.8	74.9	22.2	2.26
x 3/16	0.188	17.08	5.03	28.7	39.4	46.9	11.7	3.05	13.9	30.2	10.1	2.45	11.4	57.7	17.0	2.28
8 x 4 x 5/8	0.625	42.30	12.4	2.80	9.20	85.2	21.3	2.62	28.8	27.6	13.8	1.49	17.3	73.2	30.2	1.82
x 1/2	0.500	35.24	10.4	4.40	12.4	75.2	18.8	2.69	24.7	24.6	12.3	1.54	15.0	64.1	25.8	1.86
x 3/8	0.375	27.48	8.08	7.47	18.1	61.9	15.5	2.77	19.9	20.6	10.3	1.60	12.2	52.2	20.5	1.89
x 5/16	0.313	23.34	6.87	9.58	22.4	54.0	13.5	2.80	17.1	18.1	9.05	1.62	10.5	45.2	17.6	1.91
x 1/4	0.250	19.02	5.59	12.8	28.8	45.1	11.3	2.84	14.1	15.3	7.65	1.65	8.72	37.5	14.5	1.93
x 3/16	0.188	14.53	4.28	18.1	39.4	35.4	8.85	2.88	11.0	12.1	6.05	1.68	6.79	29.2	11.2	1.95
8 x 3 x 1/2	0.500	31.84	9.36	2.40	12.4	61.1	15.3	2.55	21.0	12.1	8.07	1.14	10.1	35.7	18.3	1.69
x 3/8	0.375	24.93	7.33	4.80	18.1	51.0	12.8	2.64	17.0	10.4	6.93	1.19	8.31	29.9	14.8	1.73
x 5/16	0.313	21.21	6.24	6.38	22.4	44.8	11.2	2.68	14.7	9.26	6.17	1.22	7.25	26.3	12.8	1.74
x 1/4	0.250	17.32	5.09	8.80	28.8	37.6	9.40	2.72	12.2	7.90	5.27	1.25	6.05	22.1	10.6	1.76
x 3/16	0.188	13.25	3.90	12.8	39.4	29.7	7.42	2.76	9.51	6.33	4.22	1.27	4.74	17.4	8.23	1.78
8 x 2 x 3/8	0.375	22.37	6.58	2.13	18.1	40.1	10.0	2.47	14.2	3.86	3.86	0.766	4.83	12.6	9.09	1.56
x 5/16	0.313	19.08	5.62	3.19	22.4	35.5	8.88	2.51	12.3	3.53	3.53	0.793	4.28	11.4	8.00	1.58
x 1/4	0.250	15.62	4.59	4.80	28.8	30.1	7.52	2.56	10.3	3.08	3.08	0.819	3.63	9.84	6.72	1.60
x 3/16	0.188	11.97	3.53	7.44	39.4	23.9	5.98	2.60	8.04	2.53	2.53	0.847	2.89	7.95	5.30	1.61
7 x 5 x 1/2	0.500	35.24	10.4	6.40	10.4	63.5	18.1	2.47	23.1	37.3	14.9	1.89	18.2	79.9	28.8	1.86
x 3/8	0.375	27.48	8.08	10.1	15.5	52.2	14.9	2.54	18.5	30.8	12.3	1.95	14.6	64.2	22.8	1.89
x 5/16	0.313	23.34	6.87	12.8	19.2	45.5	13.0	2.57	16.0	27.0	10.8	1.98	12.6	55.4	19.5	1.91
x 1/4	0.250	19.02	5.59	16.8	24.8	38.0	10.9	2.61	13.2	22.6	9.04	2.01	10.4	45.6	16.0	1.93
x 3/16	0.188	14.53	4.28	23.4	34.0	29.8	8.51	2.64	10.2	17.8	7.12	2.04	8.12	35.3	12.3	1.95

Shape h x b x t	Design Wall Thickness, t in.	Nominal Wt lb/ft	Area, A in²	b/t	h/t	Axis x - x				Axis Y-Y				Torsion		Surface Area
						I	S	r	Z	I	S	r	Z	J	C	Surface Area
						in⁴	in³	in.	in³	in⁴	in³	in.	in³	in⁴	in³	ft²/ft
7 x 4 x 1/2	0.500	31.84	9.36	4.40	10.4	52.9	15.1	2.38	19.8	21.6	10.8	1.52	13.3	53.0	22.3	1.69
x 3/8	0.375	24.93	7.33	7.47	15.5	44.0	12.6	2.45	16.0	18.1	9.05	1.57	10.8	43.3	17.8	1.73
x 5/16	0.313	21.21	6.24	9.58	19.2	38.5	11.0	2.48	13.9	16.0	8.00	1.60	9.37	37.6	15.3	1.74
x 1/4	0.250	17.32	5.09	12.8	24.8	32.3	9.23	2.52	11.5	13.5	6.75	1.63	7.78	31.2	12.6	1.76
x 3/16	0.188	13.25	3.90	18.1	34.0	25.5	7.29	2.56	8.93	10.7	5.35	1.66	6.07	24.3	9.74	1.78
7 x 3 x 1/2	0.500	28.43	8.36	2.40	10.4	42.3	12.1	2.25	16.6	10.5	7.00	1.12	8.84	29.8	15.8	1.52
x 3/8	0.375	22.37	6.58	4.80	15.5	35.7	10.2	2.33	13.5	9.10	6.07	1.18	7.32	25.1	12.8	1.56
x 5/16	0.313	19.08	5.62	6.38	19.2	31.5	9.00	2.37	11.8	8.13	5.42	1.20	6.41	22.1	11.1	1.58
x 1/4	0.250	15.62	4.59	8.80	24.8	26.6	7.60	2.41	9.8	6.95	4.63	1.23	5.36	18.5	9.22	1.60
x 3/16	0.188	11.97	3.53	12.8	34.0	21.1	6.03	2.44	7.65	5.58	3.72	1.26	4.21	14.6	7.18	1.61
7 x 2 x 1/4	0.250	13.91	4.09	4.80	24.8	20.9	5.97	2.26	8.10	2.70	2.70	0.812	3.19	8.36	5.85	1.43
3 x 16	0.188	10.70	3.15	7.44	34.0	16.7	4.77	2.30	6.37	2.22	2.22	0.840	2.54	6.76	4.62	1.45
6 x 5 x 1/2	0.500	31.84	9.36	6.40	8.40	43.0	14.3	2.14	18.1	32.2	12.9	1.85	16.0	62.9	24.3	1.69
x 3/8	0.375	24.93	7.33	10.1	12.8	35.7	11.9	2.21	14.7	26.8	10.7	1.91	12.9	50.9	19.3	1.73
x 5/16	0.313	21.21	6.24	12.8	16.0	31.3	10.4	2.24	12.7	23.5	9.40	1.94	11.2	44.0	16.6	1.74
x 1/4	0.250	17.32	5.09	16.8	20.8	26.2	8.73	2.27	10.5	19.8	7.92	1.97	9.26	36.3	13.6	1.76
x 3/16	0.188	13.25	3.90	23.4	28.7	20.7	6.90	2.30	8.17	15.6	6.24	2.00	7.21	28.2	10.5	1.78
6 x 4 x 1/2	0.500	28.43	8.36	4.40	8.40	35.4	11.8	2.06	15.4	18.5	9.25	1.49	11.5	42.1	18.8	1.52
x 3/8	0.375	22.37	6.58	7.47	12.8	29.7	9.9	2.12	12.5	15.7	7.85	1.54	9.44	34.6	15.1	1.56
x 5/16	0.313	19.08	5.62	9.58	16.0	26.2	8.73	2.16	10.9	13.9	6.95	1.57	8.22	30.1	13.0	1.58
x 1/4	0.250	15.62	4.59	12.8	20.8	22.1	7.37	2.19	9.06	11.7	5.85	1.60	6.84	25.0	10.7	1.60
x 3/16	0.188	11.97	3.53	18.1	28.7	17.5	5.83	2.23	7.07	9.34	4.67	1.63	5.36	19.6	8.30	1.61
6 x 3 x 1/2	0.500	25.03	7.36	2.40	8.40	27.8	9.27	1.94	12.6	8.96	5.97	1.10	7.59	23.9	13.3	1.36
x 3/8	0.375	19.82	5.83	4.80	12.8	23.8	7.93	2.02	10.4	7.80	5.20	1.16	6.34	20.3	10.9	1.39
x 5/16	0.313	16.96	4.99	6.38	16.0	21.1	7.03	2.06	9.12	6.99	4.66	1.18	5.56	17.9	9.45	1.41
x 1/4	0.250	13.91	4.09	8.80	20.8	17.9	5.97	2.09	7.62	6.00	4.00	1.21	4.67	15.1	7.85	1.43
x 3/16	0.188	10.70	3.15	12.8	28.7	14.3	4.77	2.13	5.98	4.84	3.23	1.24	3.69	11.9	6.12	1.45

Shape h x b x t	Design Wall Thickness, t in.	Nominal Wt lb/ft	Area, A in²	b/t	h/t	Axis x - x				Axis Y-Y				Torsion		Surface Area
						I	S	r	Z	I	S	r	Z	J	C	Surface Area
						in⁴	in³	in.	in³	in⁴	in³	in.	in³	in⁴	in³	ft²/ft
6 x 2 x 3/8	0.375	17.27	5.08	2.13	12.8	17.8	5.93	1.87	8.33	2.85	2.85	0.749	3.61	8.72	6.65	1.23
x 5/16	0.313	14.83	4.36	3.19	16.0	16.1	5.37	1.92	7.34	2.62	2.62	0.775	3.23	7.94	5.89	1.24
x 1/4	0.250	12.21	3.59	4.80	20.8	13.8	4.60	1.96	6.18	2.31	2.31	0.802	2.75	6.88	4.97	1.26
x 3/16	0.188	9.42	2.78	7.44	28.7	11.1	3.70	2.00	4.89	1.91	1.91	0.829	2.20	5.58	3.93	1.28
5 x 4 x 1/2	0.500	25.03	7.36	4.40	6.40	22.0	8.80	1.73	11.5	15.4	7.70	1.45	9.77	31.7	15.3	1.36
x 3/8	0.375	19.82	5.83	7.47	10.1	18.8	7.52	1.80	9.44	13.2	6.60	1.50	8.08	26.3	12.4	1.39
x 5/16	0.313	16.96	4.99	9.58	12.8	16.6	6.64	1.82	8.25	11.7	5.85	1.53	7.06	22.9	10.7	1.41
x 1/4	0.250	13.91	4.09	12.8	16.8	14.1	5.64	1.86	6.89	10.0	5.00	1.56	5.90	19.1	8.85	1.43
x 3/16	0.188	10.70	3.15	18.1	23.4	11.3	4.52	1.89	5.40	7.98	3.99	1.59	4.64	15.0	6.87	1.45
5 x 3 x 1/2	0.500	21.63	6.36	2.40	6.40	16.9	6.76	1.63	9.20	7.37	4.91	1.08	6.34	18.2	10.8	1.19
x 3/8	0.375	17.27	5.08	4.80	10.1	14.7	5.88	1.70	7.71	6.50	4.33	1.13	5.35	15.6	8.90	1.23
x 5/16	0.313	14.83	4.36	6.38	12.8	13.2	5.28	1.74	6.78	5.86	3.91	1.16	4.72	13.8	7.77	1.24
x 1/4	0.250	12.21	3.59	8.80	16.8	11.3	4.52	1.77	5.70	5.05	3.37	1.19	3.98	11.7	6.47	1.26
x 3/16	0.188	9.42	2.78	12.8	23.4	9.08	3.63	1.81	4.50	4.09	2.73	1.21	3.16	9.23	5.06	1.28
5 x 2-1/2 x 1/4	0.250	11.36	3.34	6.80	16.8	9.9	3.96	1.72	5.11	3.28	2.62	0.991	3.12	8.36	5.28	1.18
x 3/16	0.188	8.78	2.59	10.1	23.4	7.99	3.20	1.76	4.05	2.69	2.15	1.02	2.49	6.68	4.16	1.20
5 x 2 x 3/8	0.375	14.72	4.33	2.13	10.1	10.72	4.29	1.57	5.98	2.35	2.35	0.737	3.00	6.82	5.43	1.06
x 5/16	0.313	12.70	3.74	3.19	12.8	9.76	3.90	1.62	5.31	2.17	2.17	0.762	2.70	6.24	4.83	1.08
x 1/4	0.250	10.51	3.09	4.80	16.8	8.48	3.39	1.66	4.51	1.93	1.93	0.790	2.32	5.43	4.10	1.10
x 3/16	0.188	8.15	2.40	7.44	23.4	6.90	2.76	1.70	3.59	1.60	1.60	0.816	1.86	4.41	3.25	1.11
4 x 3 x 3/8	0.375	14.72	4.33	4.80	7.47	8.23	4.12	1.38	5.36	5.19	3.46	1.09	4.37	11.1	6.93	1.06
x 5/16	0.313	12.70	3.74	6.38	9.58	7.46	3.73	1.41	4.75	4.72	3.15	1.12	3.88	9.90	6.08	1.08
x 1/4	0.250	10.51	3.09	8.80	12.8	6.46	3.23	1.45	4.03	4.11	2.74	1.15	3.30	8.41	5.10	1.10
x 3/16	0.188	8.15	2.40	12.8	18.1	5.24	2.62	1.48	3.21	3.35	2.23	1.18	2.63	6.68	4.00	1.11
4 x 2-1/2 x 3/8	0.375	13.44	3.95	3.47	7.47	7.00	3.50	1.33	4.68	3.27	2.62	0.910	3.33	7.86	5.57	0.976
x 5/16	0.313	11.64	3.42	4.79	9.58	6.39	3.20	1.37	4.18	3.01	2.41	0.938	2.99	7.09	4.93	0.994
x 1/4	0.250	9.66	2.84	6.80	12.8	5.58	2.79	1.40	3.56	2.65	2.12	0.966	2.56	6.09	4.16	1.01
x 3/16	0.188	7.51	2.21	10.1	18.1	4.56	2.28	1.44	2.85	2.18	1.74	0.993	2.05	4.89	3.29	1.03

Shape h x b x t	Design Wall Thickness, t in.	Nominal Wt lb/ft	Area, A in²	b/t	h/t	Axis x - x				Axis Y-Y				Torsion		Surface Area
						I	S	r	Z	I	S	r	Z	J	C	Surface Area
						in⁴	in³	in.	in³	in⁴	in³	in.	in³	in⁴	in³	ft²/ft
4 x 2 x 3/8	0.375	12.17	3.58	2.13	7.47	5.76	2.88	1.27	4.00	1.84	1.84	0.717	2.39	4.97	4.21	0.893
x 5/16	0.313	10.58	3.11	3.19	9.58	5.33	2.66	1.31	3.60	1.72	1.72	0.744	2.17	4.58	3.78	0.910
x 1/4	0.250	8.81	2.59	4.80	12.8	4.70	2.35	1.35	3.09	1.54	1.54	0.771	1.88	4.01	3.22	0.928
x 3/16	0.188	6.87	2.02	7.44	18.1	3.88	1.94	1.39	2.49	1.29	1.29	0.799	1.52	3.27	2.57	0.946
3-1/2 x 2-1/2 x 3/8	0.375	12.17	3.58	3.47	6.13	4.90	2.80	1.17	3.74	2.84	2.27	0.891	2.94	6.38	4.78	0.893
x 5/16	0.313	10.58	3.11	4.79	7.98	4.51	2.58	1.20	3.36	2.63	2.10	0.920	2.64	5.79	4.24	0.910
x 1/4	0.250	8.81	2.59	6.80	10.8	3.97	2.27	1.24	2.88	2.33	1.86	0.948	2.28	4.99	3.60	0.928
x 3/16	0.188	6.87	2.02	10.1	15.4	3.27	1.87	1.27	2.32	1.93	1.54	0.977	1.83	4.02	2.85	0.946
3-1/2 x 2 x 1/4	0.250	7.96	2.34	4.80	10.8	3.31	1.89	1.19	2.48	1.35	1.35	0.760	1.66	3.31	2.78	0.845
x 3/16	0.188	6.23	1.84	7.44	15.4	2.75	1.57	1.22	2.01	1.13	1.13	0.784	1.35	2.71	2.23	0.863
3-1/2 x 1-1/2 x 1/4	0.250	7.11	2.09	2.80	10.8	2.65	1.51	1.13	2.07	0.659	0.879	0.562	1.11	1.86	1.97	0.762
x 3/16	0.188	5.59	1.65	4.78	15.4	2.24	1.28	1.17	1.70	0.569	0.759	0.587	0.917	1.57	1.61	0.780
3 x 2-1/2 x 5/16	0.313	9.51	2.80	4.79	6.38	3.02	2.01	1.04	2.62	2.26	1.81	0.898	2.30	4.53	3.56	0.827
x 1/4	0.250	7.96	2.34	6.80	8.80	2.68	1.79	1.07	2.27	2.01	1.61	0.927	1.99	3.93	3.03	0.845
x 3/16	0.188	6.23	1.84	10.1	12.8	2.23	1.49	1.10	1.84	1.68	1.34	0.956	1.62	3.19	2.42	0.863
3 x 2 x 5/16	0.313	8.45	2.49	3.19	6.38	2.45	1.63	0.992	2.20	1.27	1.27	0.714	1.64	2.97	2.72	0.744
x 1/4	0.250	7.11	2.09	4.80	8.80	2.21	1.47	1.03	1.92	1.15	1.15	0.742	1.44	2.63	2.35	0.762
x 3/16	0.188	5.59	1.65	7.44	12.8	1.86	1.24	1.06	1.57	0.980	0.980	0.771	1.18	2.17	1.89	0.780
3 x 1-1/2 x 1/4	0.250	6.26	1.84	2.80	8.80	1.74	1.16	0.972	1.58	0.560	0.747	0.552	0.949	1.50	1.66	0.678
x 3/16	0.188	4.96	1.46	4.78	12.8	1.49	0.993	1.01	1.31	0.488	0.651	0.578	0.794	1.27	1.36	0.696
3 x 1 x 3/16	0.188	4.32	1.27	2.12	12.8	1.12	0.747	0.939	1.04	0.178	0.356	0.374	0.452	0.546	0.833	0.613
2-1/2 x 2 x 1/4	0.250	6.26	1.84	4.80	6.80	1.38	1.10	0.866	1.43	0.962	0.962	0.723	1.22	1.98	1.91	0.678
x 3/16	0.188	4.96	1.46	7.44	10.1	1.17	0.936	0.895	1.18	0.825	0.825	0.752	1.01	1.64	1.55	0.696
2-1/2 x 1-1/2 x 1/4	0.250	5.41	1.59	2.80	6.80	1.06	0.848	0.816	1.15	0.461	0.615	0.538	0.793	1.14	1.35	0.595
2-1/2 x 1-1/2 x 3/16	0.188	4.32	1.27	4.78	10.1	0.923	0.738	0.853	0.965	0.407	0.543	0.566	0.670	0.977	1.11	0.613
2-1/2 x 1 x 3/16	0.188	3.68	1.08	2.12	10.1	0.671	0.537	0.788	0.748	0.147	0.294	0.369	0.376	0.427	0.680	0.530
2-1/4 x 2 x 3/16	0.188	4.64	1.37	7.44	8.77	0.901	0.801	0.811	1.01	0.748	0.748	0.739	0.927	1.39	1.38	0.655
2 x 1-1/2 x 3/16	0.188	3.68	1.08	4.78	7.44	0.515	0.515	0.691	0.671	0.325	0.433	0.549	0.547	0.696	0.868	0.530
2 x 1 x 3/16	0.188	3.04	0.896	2.12	7.44	0.360	0.360	0.634	0.501	0.115	0.230	0.358	0.300	0.311	0.528	0.446

Related Resources:

Square Hollow structural sections (HSS) Table Chart per ASTM 1085 Table Chart
Round Tube Structural Tube Per. ASTM 1085 Table Chart
Section Modulus Properties Equations Calculators
Structural Shapes, Section Sizes
Copper Tubing Size Chart ASTM B88
Copper Tubing HVAC Size Chart

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Rectangle Hollow structural sections (HSS) Table Chart per ASTM 1085 Table Chart (2024)

Rectangle Structural Tube Per. ASTM 1085 Table Chart

References