Steel SHS Dimensional Information

SHS (Square Hollow Section) is a cold-formed or hot-finished structural steel tube with an equal-sided square cross-section, valued in structural design for giving the same bending stiffness in both axes — useful for columns and members that need to resist load from more than one direction, and for its clean, uniform appearance in exposed architectural steelwork. The chart below gives dimensional and section property information for standard SHS sizes to BS EN 10219:1997 (cold-formed) and BS EN 10210-2:1997 (hot-finished).

For a rectangular equivalent optimised for bending about a single axis, see our Steel RHS chart; for a round section with the best strength-to-weight ratio in compression, see Steel CHS.

The charts below gives the dimensions for Cold Formed Steel Square Hollow Section to BS EN10219:1997 and Hot Formed Steel Square Hollow Section to BS EN10210-2:1997

Dimensions shown are in mm, if you wish to convert to Inches, please use our universal converter.

If you are interested in different sections why not try these?

STEEL SQUARE HOLLOW SECTION - COLD FORMED - BS EN10219:1997

EICAC.co.uk - Cold Formed Steel Square Hollow Section - Dimensions and
Properties

Size	Thickness	Corner Radii		Mass/m	Area of Section	Second Moment of Area	Radius of Gyration	Torsional Constants		Section Surface Area
A	B	External D	Internal C	M	A	I	r	Inertia J	Modulus C	As
mm x mm	mm	mm	mm	kg/m	cm²	cm⁴	cm	cm⁴	cm³	m²/m
20	2	4	2	1.05	1.34	0.692	0.72	1.21	1.06	0.0731
20	2.5	5	2.5	1.25	1.59	0.766	0.694	1.39	1.19	0.0714
25	2	4	2	1.36	1.74	1.48	0.924	2.97	1.8	0.0931
25	2.5	5	2.5	1.64	2.09	1.69	0.899	3.33	2.07	0.0914
25	3	6	3	1.89	2.41	1.84	0.874	3.32	2.27	0.0897
30	2	4	2	1.68	2.14	2.72	1.13	4.54	2.75	0.113
30	2.5	5	2.5	2.03	2.59	3.16	1.1	5.4	3.2	0.111
30	3	6	3	2.36	3.01	3.5	1.08	6.15	3.58	0.11
40	2	4	2	2.31	2.94	6.94	1.54	11.3	5.23	0.153
40	2.5	5	2.5	2.82	3.59	8.22	1.51	13.6	6.21	0.151
40	3	6	3	3.3	4.21	9.32	1.49	15.8	7.07	0.15
40	4	8	4	4.2	5.35	11.1	1.44	19.4	8.48	0.146
50	2	4	2	2.93	3.74	14.1	1.95	22.6	8.51	0.193
50	2.5	5	2.5	3.6	4.59	16.9	1.92	27.5	10.2	0.191
50	3	6	3	4.25	5.41	19.5	1.9	32.1	11.8	0.19
50	4	8	4	5.45	6.95	23.7	1.85	40.4	14.4	0.186
50	5	10	5	6.56	8.36	27	1.8	47.5	16.6	0.183
60	2	4	2	3.56	4.54	25.1	2.35	39.8	12.6	0.233
60	2.5	5	2.5	4.39	5.59	30.3	2.33	47.8	15.2	0.231
60	3	6	3	5.19	6.61	35.1	2.31	57.1	17.7	0.23
60	4	8	4	6.71	8.55	43.6	2.26	72.6	22	0.226
60	5	10	5	8.13	10.4	50.5	2.21	86.4	25.6	0.223
60	6	12	6	9.45	12	56.1	2.16	98.4	28.6	0.219
60	6.3	15.75	9.45	9.55	12.2	54.4	2.11	100	28.8	0.213
70	2.5	5	2.5	5.17	6.59	49.4	2.74	78.5	21.2	0.271
70	3	6	3	6.13	7.81	57.5	2.71	92.4	24.7	0.27
70	3.6	7.2	3.6	7.24	9.23	66.5	2.69	108	28.7	0.268
70	4	8	4	7.97	10.1	72.1	2.67	119	31.1	0.266
70	5	10	5	9.7	12.4	84.6	2.62	142	36.7	0.259
70	6	12	6	11.3	14.4	95.2	2.57	163	41.4	0.253
70	6.3	15.75	9.45	11.5	14.7	93.8	2.53	168	42.1	0.253
80	3	6	3	7.07	9.01	87.8	3.12	140	33	0.31
80	3.6	7.2	3.6	8.37	10.7	102	3.09	165	38.4	0.308
80	4	8	4	9.22	11.7	111	3.07	180	41.8	0.306
80	5	10	5	11.3	14.4	131	3.03	218	49.7	0.303
80	6	12	6	13.2	16.8	149	2.98	252	56.6	0.299
80	6.3	15.75	9.45	13.5	17.2	149	2.94	261	57.9	0.293
80	8	20	12	16.4	20.8	168	2.84	307	66.6	0.286
90	3	6	3	8.01	10.2	127	3.53	201	42.5	0.35
90	3.6	7.2	3.6	9.5	12.1	149	3.5	238	49.6	0.348
90	4	8	4	10.5	13.3	162	3.48	261	54.2	0.346
90	5	10	5	12.8	16.4	193	3.43	316	64.7	0.343
90	6	12	6	15.1	19.2	220	3.39	368	74.2	0.339
90	6.3	15.75	9.45	15.5	19.7	221	3.35	382	76.2	0.333
90	8	20	12	18.9	24	255	3.25	456	88.8	0.326
100	3	6	3	8.96	11.4	177	3.94	279	53.2	0.39
100	4	8	4	11.7	14.9	226	3.89	362	68.1	0.386
100	5	10	5	14.4	18.4	271	3.84	441	81.7	0.383
100	6	12	6	17	21.6	311	3.79	514	94.1	0.379
100	6.3	15.75	9.45	17.5	22.2	314	3.76	536	97	0.373
100	8	20	12	21.4	27.2	366	3.67	645	114	0.366
100	10	25	15	25.6	32.6	411	3.55	750	130	0.357
100	12	36	24	28.3	36.1	408	3.36	794	136	0.338
100	12.5	37.5	25	29.1	37	410	3.33	804	137	0.336
120	3	6	3	10.8	13.8	312	4.76	488	78.2	0.47
120	4	8	4	14.2	18.1	402	4.71	637	101	0.466
120	5	10	5	17.5	22.4	485	4.66	778	122	0.463
120	6	12	6	20.7	26.4	562	4.61	913	141	0.459
120	6.3	15.75	9.45	21.4	27.3	572	4.58	955	145	0.456
120	8	20	12	26.4	33.6	677	4.49	1163	175	0.446
120	10	25	15	31.8	40.6	777	4.38	1376	203	0.437
120	12	36	24	35.8	45.7	806	4.2	1518	219	0.418
120	12.5	37.5	25	36.9	47	817	4.17	1551	223	0.416
140	4	8	4	16.8	21.3	652	5.52	1023	140	0.546
140	5	10	5	20.7	26.4	791	5.48	1256	170	0.543
140	6	12	6	24.5	31.2	920	5.43	1479	198	0.539
140	6.3	15.75	9.45	25.4	32.3	941	5.39	1550	205	0.533
140	8	20	12	31.4	40	1127	5.3	1901	248	0.526
140	10	25	15	38.1	48.6	1312	5.2	2274	291	0.517
140	12	36	24	43.4	55.3	1398	5.03	2567	322	0.498
140	12.5	37.5	25	44.8	57	1425	5	2634	329	0.496
150	4	8	4	18	22.9	808	5.93	1265	162	0.586
150	5	10	5	22.3	28.4	982	5.89	1554	197	0.583
150	6	12	6	26.4	33.6	1146	5.84	1833	230	0.579
150	6.3	15.75	9.45	27.4	34.8	1174	5.8	1922	239	0.573
150	8	20	12	33.9	43.2	1412	5.71	2364	289	0.566
150	10	25	15	41.3	52.6	1653	5.61	2839	341	0.557
150	12	36	24	47.1	60.1	1780	5.44	3231	380	0.538
150	12.5	37.5	25	48.7	62	1817	5.18	3321	389	0.536
150	16	48	32	58.7	74.8	2009	5.18	3830	440	0.518
160	4	8	4	19.3	24.5	987	6.34	1541	185	0.626
160	5	10	5	23.8	30.4	1202	6.29	1896	226	0.623
160	6	12	6	28.3	36	1405	6.25	2239	264	0.619
160	6.3	15.75	9.45	29.3	37.4	1442	6.21	2349	275	0.613
160	8	20	12	36.5	46.4	1741	6.12	2897	334	0.606
160	10	25	15	44.4	56.6	2048	6.02	3490	395	0.597
160	12	36	24	50.9	64.9	2224	5.86	3997	443	0.578
160	12.5	37.5	25	52.6	67	2275	5.83	4114	455	0.576
160	16	48	32	63.7	81.2	2546	5.6	4799	520	0.558
180	4	8	4	21.8	27.7	1422	7.16	2210	237	0.706
180	5	10	5	27	34.4	1737	7.11	2724	290	0.703
180	6	12	6	32.1	40.8	2037	7.06	3223	340	0.699
180	6.3	15.75	9.45	33.3	42.4	2096	7.03	3383	354	0.693
180	8	20	12	41.5	52.8	2546	6.94	4189	432	0.686
180	10	25	15	50.7	64.6	3017	6.84	5074	515	0.677
180	12	36	24	58.5	74.5	3322	6.68	5865	584	0.658
180	12.5	37.5	25	60.5	77	3406	6.65	6050	600	0.656
180	16	48	32	73.8	94	3887	6.43	7178	698	0.638
200	4	8	4	24.3	30.9	1968	7.97	3049	295	0.786
200	5	10	5	30.1	38.4	2410	7.93	3763	362	0.783
200	6	12	6	35.8	45.6	2833	7.88	4459	426	0.779
200	6.3	15.75	9.45	37.2	47.4	2922	7.85	4682	444	0.773
200	8	20	12	46.5	59.2	3566	7.76	5815	544	0.766
200	10	25	15	57	72.6	4251	7.65	7072	651	0.757
200	12	36	24	66	84.1	4730	7.5	8230	743	0.738
200	12.5	37.5	25	68.3	87	4859	7.47	8502	765	0.736
200	16	48	32	83.8	107	5625	7.26	10210	901	0.718
220	5	10	5	33.2	42.4	3238	8.74	5038	442	0.863
220	6	12	6	39.6	50.4	3813	8.7	5976	521	0.859
220	6.3	15.75	9.45	41.2	52.5	3940	8.66	6277	543	0.853
220	8	20	12	51.5	65.6	4828	8.58	7815	647	0.846
220	10	25	15	63.2	80.6	5782	8.47	9533	804	0.837
220	12	36	24	73.5	93.7	6487	8.32	11149	922	0.818
220	12.5	37.5	25	76.2	97	6674	8.29	11530	951	0.816
220	16	48	32	93.9	120	7812	8.08	13971	1129	0.798
250	5	10	5	38	48.4	4805	9.97	7443	577	0.983
250	6	12	6	45.2	57.6	5672	9.92	8843	681	0.979
250	6.3	15.75	9.45	47.1	60	5873	9.89	9290	711	0.973
250	8	20	12	59.2	75.2	7229	9.8	11598	878	0.966
250	10	25	15	72.7	92.6	8707	9.7	14197	1062	0.957
250	12	36	24	84.8	108	9859	9.55	16691	1226	0.938
250	12.5	37.5	25	88	112	10161	9.52	17283	1266	0.936
250	16	48	32	109	139	12047	9.32	21146	1520	0.918
260	6	12	6	47.1	60	6405	10.3	9970	739	1.02
260	6.3	15.75	9.45	49.1	62.6	6635	10.3	10475	772	1.01
260	8	20	12	61.6	78.4	8178	10.2	13087	955	1.01
260	10	25	15	75.8	96.6	9865	10.1	16035	1156	0.997
260	12	36	24	88.6	113	11200	9.96	18878	1337	0.978
260	12.5	37.5	25	91.9	117	11598	9.93	19553	1381	0.976
260	16	48	32	114	145	13739	9.73	23986	1663	0.958
300	6	12	6	54.7	69.6	9964	12	15434	997	1.18
300	6.3	15.75	9.45	57	72.6	10342	11.9	16218	1042	1.17
300	8	20	12	71.6	91.2	12801	11.8	20312	1293	1.16
300	10	25	15	88.4	113	15519	11.7	24966	1572	1.14
300	12	36	24	104	132	17767	11.6	29514	1829	1.14
300	12.5	37.5	25	108	137	18348	11.6	30601	1892	1.14
300	16	48	32	134	171	22076	11.4	37837	2259	1.12
350	8	20	12	84.2	107	20681	13.8	32557	1787	1.37
350	10	25	15	104	133	25189	13.8	40127	2182	1.36
350	12	36	24	123	156	29054	13.6	47598	2552	1.34
350	12.5	37.5	25	127	162	30045	13.6	49393	2642	1.32
350	16	48	32	159	203	36511	13.4	61481	3238	1.32
400	10	25	15	120	153	38216	15.8	60431	2892	1.56
400	12	36	24	141	180	44319	15.7	71843	3395	1.54
400	12.5	37.5	25	147	187	45877	15.7	74598	3518	1.54
400	16	48	32	184	235	56154	15.5	93279	4336	1.52

STEEL SQUARE HOLLOW SECTION - HOT FORMED - BS EN10210-2:1997

EICAC.co.uk - Hot Formed Steel Square Hollow Section - Dimensions and
Properties

Size	Thickness	Corner Radii		Mass/m	Area of Section	Second Moment of Area	Radius of Gyration	Torsional Constants		Section Surface Area
A	B	External D	Internal C	M	A	I	r	Inertia J	Modulus C	As
mm x mm	mm	mm	mm	kg/m	cm²	cm⁴	cm	cm⁴	cm³	m²/m
20	2	3	2	1.1	1.4	0.739	0.727	1.22	1.07	0.0748
20	2.5	3.75	2.5	1.32	1.68	0.835	0.705	1.41	1.2	0.0736
25	2	3	2	1.41	1.8	1.56	0.932	2.52	1.81	0.0948
25	2.5	3.75	2.5	1.71	2.18	1.81	0.909	2.97	2.08	0.0936
25	3	4.5	3	2	2.54	2	0.886	3.35	2.3	0.0923
30	2	3	2	1.72	2.2	2.84	1.14	4.53	2.75	0.115
30	2.5	3.75	2.5	2.11	2.68	3.33	1.11	5.4	3.6	0.114
30	3	4.5	3	2.47	3.14	3.74	1.09	6.16	3.6	0.112
40	2.5	3.75	2.5	2.89	3.68	8.54	1.52	13.6	6.22	0.154
40	3	4.5	3	3.41	4.34	9.78	1.5	15.7	7.1	0.152
40	3.2	4.8	3.2	3.61	4.6	10.2	1.49	16.5	7.42	0.151
40	3.6	5.4	3.6	4.01	5.1	11.1	1.47	18.1	8.01	0.15
40	4	6	4	4.39	5.59	11.8	1.45	19.5	8.54	0.147
40	5	7.5	5	5.28	6.73	13.4	1.41	22.5	9.6	0.14
50	2.5	3.75	2.5	3.68	4.68	17.5	1.93	27.5	10.2	0.194
50	3	4.5	3	4.35	5.54	20.2	1.91	32.1	11.8	0.192
50	3.2	4.8	3.2	4.62	5.88	21.2	1.9	33.8	12.4	0.192
50	3.6	5.4	3.6	5.14	6.54	23.2	1.88	37.2	13.5	0.191
50	4	6	4	5.64	7.19	25	1.86	40.4	14.5	0.19
50	5	7.5	5	6.85	8.73	28.9	1.82	47.6	16.7	0.187
50	6	9	6	7.99	10.2	32	1.77	53.6	18.4	0.185
50	6.3	9.45	6.3	8.31	10.6	32.8	1.76	55.2	18.8	0.184
60	2.5	3.75	2.5	4.46	5.68	31.1	2.34	48.5	15.2	0.234
60	3	4.5	3	5.29	6.74	36.2	2.32	56.9	17.7	0.232
60	3.2	4.8	3.2	5.62	7.16	38.2	2.31	60.2	18.6	0.231
60	3.6	5.4	3.6	6.27	7.98	41.9	2.29	66.5	20.4	0.231
60	4	6	4	6.9	8.79	45.4	2.27	72.5	22	0.23
60	5	7.5	5	8.42	10.7	53.3	2.23	86.4	25.2	0.227
60	6	9	6	9.87	12.6	59.9	2.18	98.6	28.8	0.224
60	6.3	9.45	6.3	10.3	13.1	61.6	2.17	102	29.6	0.219
70	3	4.5	3	6.24	7.94	59	2.73	92.2	24.8	0.272
70	3.2	4.8	3.2	6.63	8.44	62.3	2.72	97.6	26.1	0.272
70	3.6	5.4	3.6	7.4	9.42	68.6	2.7	109	28.7	0.271
70	4	6	4	8.15	10.4	74.7	2.68	118	31.2	0.27
70	5	7.5	5	9.99	12.7	88.5	2.64	142	36.8	0.267
70	6	9	6	11.8	15	101	2.59	163	41.6	0.265
70	6.3	9.45	6.3	12.3	15.6	104	2.58	169	42.9	0.264
80	3	4.5	3	7.18	9.14	89.8	3.13	140	33	0.312
80	3.2	4.8	3.2	7.63	9.72	95	3.13	148	34.9	0.312
80	3.6	5.4	3.6	8.53	10.9	105	3.11	164	38.5	0.311
80	4	6	4	9.41	12	114	3.09	180	41.9	0.31
80	5	7.5	5	11.6	14.7	137	3.05	217	49.8	0.307
80	6	9	6	13.6	17.4	156	3	252	56.8	0.305
80	6.3	9.45	6.3	14.2	18.1	162	2.99	262	58.7	0.304
90	3.6	5.4	3.6	9.66	12.3	152	3.52	237	49.7	0.351
90	4	6	4	10.7	13.6	166	3.5	260	54.2	0.35
90	5	7.5	5	13.1	16.7	200	3.45	316	64.8	0.347
90	6	9	6	15.5	19.8	230	3.41	367	74.3	0.345
90	6.3	9.45	6.3	16.2	20.7	238	3.4	382	77	0.339
90	8	12	8	20.1	25.6	281	3.32	459	90.5	0.334
100	3.6	5.4	3.6	10.8	13.7	212	3.92	328	62.3	0.391
100	4	6	4	11.9	15.2	232	3.91	361	68.2	0.39
100	5	7.5	5	14.7	18.7	279	3.86	439	81.8	0.387
100	6	9	6	17.4	22.2	323	3.82	513	94.3	0.385
100	6.3	9.45	6.3	18.2	23.2	336	3.8	534	97.8	0.384
100	8	12	8	22.6	28.8	400	3.73	646	116	0.379
100	10	15	10	27.4	34.9	462	3.64	761	133	0.374
120	4	6	4	14.4	18.4	410	4.72	635	101	0.47
120	5	7.5	5	17.8	22.7	498	4.68	777	122	0.467
120	6	9	6	21.1	27	579	4.63	911	141	0.465
120	6.3	9.45	6.3	22.2	28.2	603	4.62	950	147	0.464
120	8	12	8	27.5	35.2	726	4.55	1160	176	0.459
120	10	15	10	33.7	42.9	852	4.46	1382	206	0.454
120	12	18	12	39.5	50.3	958	4.36	1578	230	0.449
120	12.5	18.75	12.5	40.9	52.1	982	4.34	1623	236	0.448
140	5	7.5	5	21	26.7	807	5.5	1253	170	0.547
140	6	9	6	24.9	31.8	944	5.45	1475	198	0.545
140	6.3	9.45	6.3	26.1	33.3	984	5.44	1540	206	0.544
140	8	12	8	32.6	41.6	1195	5.36	1892	249	0.539
140	10	15	10	40	50.9	1416	5.27	2272	294	0.533
140	12	18	12	47	59.9	1609	5.18	2616	334	0.529
140	12.5	18.75	12.5	48.7	62.1	1653	5.16	2696	342	0.528
150	5	7.5	5	22.6	28.7	1002	5.9	1550	197	0.587
150	6	9	6	26.8	34.2	1174	5.86	1828	230	0.585
150	6.3	9.45	6.3	28.1	35.8	1223	5.85	1909	239	0.584
150	8	12	8	35.1	44.8	1491	5.77	2351	291	0.58
150	10	15	10	43.1	54.9	1773	5.68	2832	344	0.574
150	12	18	12	50.8	64.7	2023	5.59	3272	391	0.568
150	12.5	18.75	12.5	52.7	67.1	2080	5.57	3375	402	0.567
150	16	24	16	65.2	83	2430	5.41	4026	467	0.559
160	5	7.5	5	24.1	30.7	1225	6.31	1892	226	0.627
160	6	9	6	28.7	36.6	1437	6.27	2233	264	0.625
160	6.3	9.45	6.3	30.1	38.3	1499	6.26	2275	273	0.624
160	8	12	8	37.6	48	1831	6.18	2880	335	0.619
160	10	15	10	46.3	58.9	2186	6.09	3478	398	0.614
160	12	18	12	54.6	69.5	2502	6	4028	454	0.609
160	12.5	18.75	12.5	56.6	72.1	2576	5.98	4158	467	0.608
160	16	24	16	70.2	89.4	3028	5.82	4988	546	0.599
180	5	7.5	5	27.3	34.7	1765	7.13	2718	290	0.707
180	6	9	6	32.5	41.4	2077	7.09	3215	340	0.705
180	6.3	9.45	6.3	34	43.3	2168	7.07	3361	355	0.704
180	8	12	8	42.7	54.4	2661	7	4162	434	0.699
180	10	15	10	52.7	66.9	3193	6.91	5048	518	0.694
180	12	18	12	62.1	79.1	3677	6.82	5873	595	0.688
180	12.5	18.75	12.5	64.4	82.1	3790	6.8	6070	613	0.687
180	16	24	16	80.2	102	4504	6.64	7343	724	0.679
200	5	7.5	5	30.4	38.7	2445	7.95	3756	362	0.787
200	6	9	6	36.2	46.2	2883	7.9	4449	426	0.784
200	6.3	9.45	6.3	38	48.4	3011	7.89	4653	444	0.783
200	8	12	8	47.7	60.8	3709	7.81	5778	545	0.779
200	10	15	10	58.8	74.9	4471	7.72	7031	655	0.774
200	12	18	12	69.6	88.7	5171	7.64	8208	754	0.768
200	12.5	18.75	12.5	72.3	92.1	5336	7.61	8491	778	0.767
200	16	24	16	90.3	115	6394	7.46	10340	927	0.759
220	6	9	6	40	51	3875	8.72	5963	521	0.865
220	6.3	9.45	6.3	41.9	53.4	4049	8.71	6240	544	0.864
220	8	12	8	52.7	67.2	5002	8.63	7765	669	0.859
220	10	15	10	65.1	82.9	6050	8.54	9473	807	0.854
220	12	18	12	77.2	98.3	7023	8.45	11091	933	0.849
220	12.5	18.75	12.5	80.1	102	7254	8.43	11481	963	0.848
220	16	24	16	100	128	8749	8.27	14054	1156	0.839
250	5	7.5	5	38.3	48.7	4861	9.99	7430	577	0.987
250	6	9	6	45.7	58.2	5752	9.94	8825	681	0.984
250	6.3	9.45	6.3	47.9	61	6014	9.93	9238	712	0.984
250	8	12	8	60.3	76.8	7455	9.86	11525	880	0.979
250	10	15	10	74.5	94.9	9055	9.77	14106	1065	0.974
250	12	18	12	88.5	113	10556	9.66	16567	1237	0.968
250	12.5	18.75	12.5	91.9	117	10915	9.63	17164	1279	0.967
250	16	24	16	115	147	13267	9.5	21138	1546	0.958
260	6	9	6	47.6	60.6	6491	10.4	9951	740	1.02
260	6.3	9.45	6.3	49.9	63.5	6788	10.3	10417	772	1.02
260	8	12	8	62.8	80	8423	10.3	13006	956	1.01
260	10	15	10	77.7	98.9	10242	10.2	15932	1159	1.01
260	12	18	12	92.2	117	11954	10.1	18729	1348	0.999
260	12.5	18.75	12.5	95.8	122	12365	10.1	19409	1394	0.998
260	16	24	16	120	153	15061	9.91	23942	1689	0.99
300	6	9	6	55.1	70.2	10080	11.99	15407	997	1.18
300	6.3	9.45	6.3	57.8	73.6	10547	11.98	16136	1043	1.18
300	8	12	8	72.8	92.8	13128	11.9	20194	1294	1.17
300	10	15	10	90.2	115	16026	11.8	24807	1575	1.17
300	12	18	12	107	137	18777	11.7	29249	1840	1.17
300	12.5	18.75	12.5	112	142	19442	11.7	30333	1904	1.16
300	16	24	16	141	179	23850	11.5	37622	2325	1.16
350	8	12	8	85.4	109	21129	13.9	32384	1789	1.37
350	10	15	10	106	135	25884	13.9	38886	2185	1.37
350	12	18	12	126	161	30435	13.8	47154	2563	1.37
350	12.5	18.75	12.5	131	167	31541	13.7	48934	2654	1.36
350	16	24	16	166	211	38942	13.6	60990	3264	1.36
400	8	12	8	97.9	125	31857	16	48695	2363	1.58
400	10	15	10	122	155	39128	15.9	60092	2895	1.57
400	12	18	12	145	186	46130	15.8	71081	3405	1.57
400	12.5	18.75	12.5	151	192	47839	15.8	73906	3530	1.57
400	16	24	16	191	243	59344	15.6	92442	4362	1.55
400	20	30	20	235	300	71535	15.4	112489	5237	1.55

FREQUENTLY ASKED QUESTIONS

What's the difference between hot-finished and cold-formed SHS?

Hot-finished SHS (to BS EN 10210) is formed and finished at high temperature, giving lower residual stress and generally better buckling resistance; cold-formed SHS (to BS EN 10219) is formed at room temperature from strip, which is typically more cost-effective but has higher residual stresses from the forming process. For UK structural applications where buckling resistance matters, hot-finished sections are often preferred.

When would I use SHS instead of RHS or CHS?

SHS suits members loaded in more than one direction that benefit from equal stiffness both ways, and gives a clean square profile for architecturally exposed steelwork. RHS suits members where load is predominantly in one direction and a deeper section improves bending efficiency. CHS gives the best strength-to-weight ratio in pure compression and the highest torsional stiffness, at the cost of more complex end connections.

What section properties are given in the chart?

Typically overall dimensions, wall thickness, mass per metre, cross-sectional area, and second moment of area — the values needed for both material takeoff and structural design calculations. Always check the specific edition of the standard referenced against your project's specification requirements.

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