Universal Beams (UB) - Section Properties Table

Dimensions and section properties for all 96 Universal Beams (UB) to BS EN 10365 (SCI P363 Blue Book): dimensions, mass, second moment of area, section modulus and radius of gyration for every UB size. Use the table below for reference, or open the interactive tool to run EC3 capacity checks.

🔍 Open the full Steel Catalogue - properties, capacity & Find Section →Open the interactive UB tool - EC3 capacity checks →📖 Design theory 📐 Worked example

Designation	mass kg/m	h mm	b mm	t_w mm	t_f mm	I_y cm⁴	I_z cm⁴	i_y cm	i_z cm	W_el,y cm³	W_el,z cm³	W_pl,y cm³	W_pl,z cm³	u	X	I_w dm⁶	I_t cm⁴	A cm²	SA/m m²/m	SA/t m²/t
UB 1016×305×487⁺	486.7	1036.3	308.5	30	54.1	1022000	26700	40.6	6.57	19700	1730	23200	2800	0.867	21.1	64.4	4300	620	3.2	6.58
UB 1016×305×437⁺	437	1026.1	305.4	26.9	49	910000	23400	40.4	6.49	17700	1540	20800	2470	0.868	23.1	56	3190	557	3.17	7.25
UB 1016×305×393⁺	392.7	1015.9	303	24.4	43.9	808000	20500	40.2	6.4	15900	1350	18500	2170	0.868	25.5	48.4	2330	500	3.14	8
UB 1016×305×349⁺	349.4	1008.1	302	21.1	40	723000	18500	40.3	6.44	14300	1220	16600	1940	0.872	27.9	43.3	1720	445	3.13	8.96
UB 1016×305×314⁺	314.3	999.9	300	19.1	35.9	644000	16200	40.1	6.37	12900	1080	14800	1710	0.872	30.7	37.7	1260	400	3.11	9.89
UB 1016×305×272⁺	272.3	990.1	300	16.5	31	554000	14000	40	6.35	11200	934	12800	1470	0.872	35	32.2	835	347	3.1	11.4
UB 1016×305×249⁺	248.7	980.1	300	16.5	26	481000	11800	39	6.09	9820	784	11300	1240	0.861	39.9	26.8	582	317	3.08	12.4
UB 1016×305×222⁺	222	970.3	300	16	21.1	408000	9550	38	5.81	8410	636	9810	1020	0.85	45.7	21.5	390	283	3.06	13.8
UB 914×419×388	388	921	420.5	21.4	36.6	720000	45400	38.2	9.59	15600	2160	17700	3340	0.885	26.7	88.9	1730	494	3.44	8.87
UB 914×419×343	343.3	911.8	418.5	19.4	32	626000	39200	37.8	9.46	13700	1870	15500	2890	0.883	30.1	75.8	1190	437	3.42	9.96
UB 914×305×289	289.1	926.6	307.7	19.5	32	504000	15600	37	6.51	10900	1010	12600	1600	0.867	31.9	31.2	926	368	3.01	10.4
UB 914×305×253	253.4	918.4	305.5	17.3	27.9	436000	13300	36.8	6.42	9500	871	10900	1370	0.865	36.2	26.4	626	323	2.99	11.8
UB 914×305×224	224.2	910.4	304.1	15.9	23.9	376000	11200	36.3	6.27	8270	739	9530	1160	0.86	41.3	22.1	422	286	2.97	13.2
UB 914×305×201	200.9	903	303.3	15.1	20.2	325000	9420	35.7	6.07	7200	621	8350	982	0.853	46.9	18.4	291	256	2.96	14.7
UB 838×292×226	226.5	850.9	293.8	16.1	26.8	340000	11400	34.3	6.27	7980	773	9160	1210	0.869	35	19.3	514	289	2.81	12.4
UB 838×292×194	193.8	840.7	292.4	14.7	21.7	279000	9070	33.6	6.06	6640	620	7640	974	0.862	41.6	15.2	306	247	2.79	14.4
UB 838×292×176	175.9	834.9	291.7	14	18.8	246000	7800	33.1	5.9	5890	535	6810	842	0.856	46.5	13	221	224	2.78	15.8
UB 762×267×197	196.8	769.8	268	15.6	25.4	240000	8170	30.9	5.71	6230	610	7170	958	0.869	33.1	11.3	404	251	2.55	13
UB 762×267×173	173	762.2	266.7	14.3	21.6	205000	6850	30.5	5.58	5390	514	6200	807	0.865	38	9.39	267	220	2.53	14.6
UB 762×267×147	146.9	754	265.2	12.8	17.5	169000	5460	30	5.4	4470	411	5160	647	0.858	45.2	7.4	159	187	2.51	17.1
UB 762×267×134	133.9	750	264.4	12	15.5	151000	4790	29.7	5.3	4020	362	4640	570	0.853	49.8	6.46	119	171	2.51	18.7
UB 686×254×170	170.2	692.9	255.8	14.5	23.7	170000	6630	28	5.53	4920	518	5630	811	0.872	31.8	7.42	308	217	2.35	13.8
UB 686×254×152	152.4	687.5	254.5	13.2	21	150000	5780	27.8	5.46	4370	455	5000	710	0.871	35.4	6.42	220	194	2.34	15.4
UB 686×254×140	140.1	683.5	253.7	12.4	19	136000	5180	27.6	5.39	3990	409	4560	638	0.87	38.6	5.72	169	178	2.33	16.6
UB 686×254×125	125.2	677.9	253	11.7	16.2	118000	4380	27.2	5.24	3480	346	3990	542	0.863	43.8	4.8	116	159	2.32	18.5
UB 610×305×238	238.1	635.8	311.4	18.4	31.4	209000	15800	26.3	7.23	6590	1020	7490	1570	0.886	21.3	14.5	785	303	2.45	10.3
UB 610×305×179	179	620.2	307.1	14.1	23.6	153000	11400	25.9	7.07	4930	743	5550	1140	0.885	27.7	10.2	340	228	2.41	13.5
UB 610×305×149	149.2	612.4	304.8	11.8	19.7	126000	9310	25.7	7	4110	611	4590	937	0.886	32.7	8.17	200	190	2.39	16
UB 610×229×140	139.9	617.2	230.2	13.1	22.1	112000	4510	25	5.03	3620	391	4140	611	0.875	30.6	3.99	216	178	2.11	15.1
UB 610×229×125	125.1	612.2	229	11.9	19.6	98600	3930	24.9	4.97	3220	343	3680	535	0.875	34	3.45	154	159	2.09	16.7
UB 610×229×113	113	607.6	228.2	11.1	17.3	87300	3430	24.6	4.88	2870	301	3280	469	0.87	38	2.99	111	144	2.08	18.4
UB 610×229×101	101.2	602.6	227.6	10.5	14.8	75800	2910	24.2	4.75	2520	256	2880	400	0.863	43	2.52	77	129	2.07	20.5
UB 610×178×100⁺	100.3	607.4	179.2	11.3	17.2	72500	1660	23.8	3.6	2390	185	2790	296	0.854	38.7	1.44	95	128	1.89	18.8
UB 610×178×92⁺	92.2	603	178.8	10.9	15	64600	1440	23.4	3.5	2140	161	2510	258	0.85	42.7	1.24	71	117	1.88	20.4
UB 610×178×82⁺	81.8	598.6	177.9	10	12.8	55900	1210	23.2	3.4	1870	136	2190	218	0.843	48.5	1.04	48.8	104	1.87	22.9
UB 533×312×273⁺	273.3	577.1	320.2	21.1	37.6	199000	20600	23.9	7.69	6890	1290	7870	1990	0.891	15.9	15	1290	348	2.37	8.67
UB 533×312×219⁺	218.8	560.3	317.4	18.3	29.2	151000	15600	23.3	7.48	5400	982	6120	1510	0.884	19.8	11	642	279	2.33	10.7
UB 533×312×182⁺	181.5	550.7	314.5	15.2	24.4	123000	12700	23.1	7.4	4480	806	5040	1240	0.886	23.4	8.77	373	231	2.31	12.7
UB 533×312×151⁺	150.6	542.5	312	12.7	20.3	101000	10300	22.9	7.32	3710	659	4150	1010	0.885	27.8	7.01	216	192	2.29	15.2
UB 533×210×138⁺	138.3	549.1	213.9	14.7	23.6	86100	3860	22.1	4.68	3140	361	3610	568	0.874	24.9	2.67	250	176	1.9	13.7
UB 533×210×122	122	544.5	211.9	12.7	21.3	76000	3390	22.1	4.67	2790	320	3200	500	0.878	27.6	2.32	178	155	1.89	15.5
UB 533×210×109	109	539.5	210.8	11.6	18.8	66800	2940	21.9	4.6	2480	279	2830	436	0.875	30.9	1.99	126	139	1.88	17.2
UB 533×210×101	101	536.7	210	10.8	17.4	61500	2690	21.9	4.57	2290	256	2610	399	0.874	33.1	1.81	101	129	1.87	18.5
UB 533×210×92	92.1	533.1	209.3	10.1	15.6	55200	2390	21.7	4.51	2070	228	2360	355	0.873	36.4	1.6	75.7	117	1.86	20.2
UB 533×210×82	82.2	528.3	208.8	9.6	13.2	47500	2010	21.3	4.38	1800	192	2060	300	0.863	41.6	1.33	51.5	105	1.85	22.5
UB 533×165×85⁺	84.8	534.9	166.5	10.3	16.5	48500	1270	21.2	3.44	1820	153	2100	243	0.861	35.5	0.857	73.8	108	1.69	19.9
UB 533×165×75⁺	74.7	529.1	165.9	9.7	13.6	41100	1040	20.8	3.3	1550	125	1810	200	0.853	41.1	0.691	47.9	95.2	1.68	22.5
UB 533×165×66⁺	65.7	524.7	165.1	8.9	11.4	35000	859	20.5	3.2	1340	104	1560	166	0.847	47	0.566	32	83.7	1.67	25.4
UB 457×191×161⁺	161.4	492	199.4	18	32	79800	4250	19.7	4.55	3240	426	3780	672	0.881	16.5	2.25	515	206	1.73	10.7
UB 457×191×133⁺	133.3	480.6	196.7	15.3	26.3	63800	3350	19.4	4.44	2660	341	3070	535	0.879	19.6	1.73	292	170	1.7	12.8
UB 457×191×106⁺	105.8	469.2	194	12.6	20.6	48900	2510	19	4.32	2080	259	2390	405	0.876	24.4	1.27	146	135	1.67	15.8
UB 457×191×98	98.3	467.2	192.8	11.4	19.6	45700	2350	19.1	4.33	1960	243	2230	379	0.881	25.8	1.18	121	125	1.67	17
UB 457×191×89	89.3	463.4	191.9	10.5	17.7	41000	2090	19	4.29	1770	218	2010	338	0.878	28.3	1.04	90.7	114	1.66	18.6
UB 457×191×82	82	460	191.3	9.9	16	37100	1870	18.8	4.23	1610	196	1830	304	0.879	30.8	0.922	69.2	104	1.65	20.1
UB 457×191×74	74.3	457	190.4	9	14.5	33300	1670	18.8	4.2	1460	176	1650	272	0.877	33.8	0.818	51.8	94.6	1.64	22.1
UB 457×191×67	67.1	453.4	189.9	8.5	12.7	29400	1450	18.5	4.12	1300	153	1470	237	0.873	37.8	0.705	37.1	85.5	1.63	24.3
UB 457×152×82	82.1	465.8	155.3	10.5	18.9	36600	1180	18.7	3.37	1570	153	1810	240	0.872	27.4	0.591	89.2	105	1.51	18.4
UB 457×152×74	74.2	462	154.4	9.6	17	32700	1050	18.6	3.33	1410	136	1630	213	0.872	30.1	0.518	65.9	94.5	1.5	20.2
UB 457×152×67	67.2	458	153.8	9	15	28900	913	18.4	3.27	1260	119	1450	187	0.868	33.6	0.448	47.7	85.6	1.5	22.3
UB 457×152×60	59.8	454.6	152.9	8.1	13.3	25500	795	18.3	3.23	1120	104	1290	163	0.868	37.5	0.387	33.8	76.2	1.49	24.9
UB 457×152×52	52.3	449.8	152.4	7.6	10.9	21400	645	17.9	3.11	950	84.6	1100	133	0.859	43.8	0.311	21.4	66.6	1.48	28.3
UB 406×178×85⁺	85.3	417.2	181.9	10.9	18.2	31700	1830	17.1	4.11	1520	201	1730	313	0.88	24.4	0.728	93	109	1.52	17.8
UB 406×178×74	74.2	412.8	179.5	9.5	16	27300	1550	17	4.04	1320	172	1500	267	0.882	27.5	0.608	62.8	94.5	1.51	20.4
UB 406×178×67	67.1	409.4	178.8	8.8	14.3	24300	1360	16.9	3.99	1190	153	1350	237	0.88	30.4	0.533	46.1	85.5	1.5	22.3
UB 406×178×60	60.1	406.4	177.9	7.9	12.8	21600	1200	16.8	3.97	1060	135	1200	209	0.88	33.7	0.466	33.3	76.5	1.49	24.8
UB 406×178×54	54.1	402.6	177.7	7.7	10.9	18700	1020	16.5	3.85	930	115	1050	178	0.871	38.3	0.392	23.1	69	1.48	27.3
UB 406×140×53⁺	53.3	406.6	143.3	7.9	12.9	18300	635	16.4	3.06	899	88.6	1030	139	0.87	34.1	0.246	29	67.9	1.35	25.3
UB 406×140×46	46	403.2	142.2	6.8	11.2	15700	538	16.4	3.03	778	75.7	888	118	0.871	39	0.207	19	58.6	1.34	29.1
UB 406×140×39	39	398	141.8	6.4	8.6	12500	410	15.9	2.87	629	57.8	724	90.8	0.858	47.4	0.155	10.7	49.7	1.33	34.1
UB 356×171×67	67.1	363.4	173.2	9.1	15.7	19500	1360	15.1	3.99	1070	157	1210	243	0.886	24.4	0.412	55.7	85.5	1.38	20.6
UB 356×171×57	57	358	172.2	8.1	13	16000	1110	14.9	3.91	896	129	1010	199	0.882	28.8	0.33	33.4	72.6	1.37	24.1
UB 356×171×51	51	355	171.5	7.4	11.5	14100	968	14.8	3.86	796	113	896	174	0.881	32.1	0.286	23.8	64.9	1.36	26.7
UB 356×171×45	45	351.4	171.1	7	9.7	12100	811	14.5	3.76	687	94.8	775	147	0.874	36.8	0.237	15.8	57.3	1.36	30.2
UB 356×127×39	39.1	353.4	126	6.6	10.7	10200	358	14.3	2.68	576	56.8	659	89	0.871	35.2	0.105	15.1	49.8	1.18	30.2
UB 356×127×33	33.1	349	125.4	6	8.5	8250	280	14	2.58	473	44.7	543	70.2	0.863	42.1	0.081	8.79	42.1	1.17	35.4
UB 305×165×54	54	310.4	166.9	7.9	13.7	11700	1060	13	3.93	754	127	846	196	0.889	23.6	0.234	34.8	68.8	1.26	23.3
UB 305×165×46	46.1	306.6	165.7	6.7	11.8	9900	896	13	3.9	646	108	720	166	0.89	27.1	0.195	22.2	58.7	1.25	27.1
UB 305×165×40	40.3	303.4	165	6	10.2	8500	764	12.9	3.86	560	92.6	623	142	0.889	31	0.164	14.7	51.3	1.24	30.8
UB 305×127×48	48.1	311	125.3	9	14	9570	461	12.5	2.74	616	73.6	711	116	0.873	23.3	0.102	31.8	61.3	1.09	22.7
UB 305×127×42	41.9	307.2	124.3	8	12.1	8200	389	12.4	2.7	534	62.6	614	98.4	0.872	26.5	0.0846	21.1	53.4	1.08	25.8
UB 305×127×37	37	304.4	123.4	7.1	10.7	7170	336	12.3	2.67	471	54.5	539	85.4	0.872	29.7	0.0725	14.8	47.1	1.07	28.9
UB 305×102×33	32.8	312.7	102.4	6.6	10.8	6500	194	12.5	2.15	416	37.9	481	60	0.867	31.6	0.0442	12.2	41.8	1.01	30.8
UB 305×102×28	28.2	308.7	101.8	6	8.8	5370	155	12.2	2.08	348	30.5	403	48.4	0.859	37.3	0.0349	7.4	35.9	1	35.5
UB 305×102×25	24.8	305.1	101.6	5.8	7	4460	123	11.9	1.97	292	24.2	342	38.8	0.846	43.4	0.027	4.77	31.6	0.992	40
UB 254×146×43	43	259.6	147.3	7.2	12.7	6540	677	10.9	3.52	504	92	566	141	0.891	21.1	0.103	23.9	54.8	1.08	25.1
UB 254×146×37	37	256	146.4	6.3	10.9	5540	571	10.8	3.48	433	78	483	119	0.89	24.3	0.0857	15.3	47.2	1.07	28.9
UB 254×146×31	31.1	251.4	146.1	6	8.6	4410	448	10.5	3.36	351	61.3	393	94.1	0.879	29.6	0.066	8.55	39.7	1.06	34
UB 254×102×28	28.3	260.4	102.2	6.3	10	4000	179	10.5	2.22	308	34.9	353	54.8	0.873	27.5	0.028	9.57	36.1	0.904	31.9
UB 254×102×25	25.2	257.2	101.9	6	8.4	3410	149	10.3	2.15	266	29.2	306	46	0.866	31.4	0.023	6.42	32	0.897	35.7
UB 254×102×22	22	254	101.6	5.7	6.8	2840	119	10.1	2.06	224	23.5	259	37.3	0.856	36.3	0.0182	4.15	28	0.89	40.5
UB 203×133×30	30	206.8	133.9	6.4	9.6	2900	385	8.71	3.17	280	57.5	314	88.2	0.882	21.5	0.0374	10.3	38.2	0.923	30.8
UB 203×133×25	25.1	203.2	133.2	5.7	7.8	2340	308	8.56	3.1	230	46.2	258	70.9	0.876	25.6	0.0294	5.96	32	0.915	36.5
UB 203×102×23	23.1	203.2	101.8	5.4	9.3	2100	164	8.46	2.36	207	32.2	234	49.7	0.888	22.4	0.0154	7.02	29.4	0.79	34.2
UB 178×102×19	19	177.8	101.2	4.8	7.9	1360	137	7.48	2.37	153	27	171	41.6	0.886	22.6	0.0099	4.41	24.3	0.738	38.7
UB 152×89×16	16	152.4	88.7	4.5	7.7	834	89.8	6.41	2.1	109	20.2	123	31.2	0.89	19.5	0.0047	3.56	20.3	0.638	40
UB 127×76×13	13	127	76	4	7.6	473	55.7	5.35	1.84	74.6	14.7	84.2	22.6	0.894	16.3	0.002	2.85	16.5	0.537	41.4

⁺ in addition to the range of BS 4 sections. ^# check availability.

96 sections · source: BS EN 10365:2017

Related section types

Universal Columns (UC)

36 sections · BS EN 10365:2017

Universal Bearing Piles (UBP)

17 sections · BS EN 10365:2017

Universal Joists (UJ)

13 sections · BS 4-1:2005

Learn more

📘 How to read a steel section table (UB, UC, IPE, HE) →📘 Section modulus explained: elastic (Wel) vs plastic (Wpl) →📘 IPE vs HE (HEA/HEB): choosing a European steel beam →

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