UB (BS 4-1)

BS 4-1:2005 · 61 sections

Free Reference Data

Universal Beams (UB) to BS 4-1:2005 are the primary British Standard I-section beams. Equivalent to European IPE/HEA/HEB sections, they are specified on projects following UK design codes and BS/EC dual-standard specifications.

Designation	h (mm)	b (mm)	t_w (mm)	t_f (mm)	A (cm²)	G (kg/m)	I_y (cm⁴)	W_y (cm³)
UB 127×76×13	127	76	4	7.6	16.5	13	590	93
UB 152×89×16	152	89	4.5	7.7	20.4	16	870	115
UB 178×102×19	178	102	4.8	7.9	24.3	19	1350	152
UB 203×102×23	203	102	5.4	8.6	29.3	23	2120	209
UB 203×133×25	203	133	5.7	7.8	31.6	25	2340	230
UB 254×102×22	254	102	5.7	6.8	28.5	22	2930	231
UB 254×102×25	257	102	6	8.4	32.1	25	3410	265
UB 254×102×28	260	102	6.3	10	35.8	28	4000	308
UB 254×146×31	251	146	6	8.6	39.5	31	4410	351
UB 254×146×37	256	146	6.4	10.9	47.2	37	5550	433
UB 254×146×43	260	146	7.2	12.9	54.8	43	6550	504
UB 305×102×25	305	102	5.8	7	32	25	4420	290
UB 305×102×28	308	102	6	8.8	36.2	28	5160	335
UB 305×102×33	313	102	6.6	10.8	42.1	33	6500	416
UB 305×152×37	302	152	6	9.5	47	37	7050	467
UB 305×152×42	307	152	6.3	11.6	53.2	42	8200	534
UB 305×152×49	311	152	7	13.7	62	49	9560	615
UB 305×165×40	303	165	6.3	10.2	51.1	40	7940	524
UB 305×165×46	307	165	6.7	11.8	58.7	46	9310	607
UB 305×165×54	312	165	7.6	13.7	68.8	54	10970	703
UB 356×171×45	351	171	6.9	9.7	57.4	45	12010	684
UB 356×171×51	355	171	7.4	11.5	65.2	51	14040	791
UB 356×171×57	358	172	8.1	13	72.5	57	15770	881
UB 356×171×67	364	173	9.1	15.7	85.4	67	18690	1027
UB 406×178×54	402	178	7.6	10.9	68.4	54	18500	920
UB 406×178×60	406	178	7.9	12.8	76.2	60	21020	1035
UB 406×178×67	410	179	8.8	14.3	85.4	67	23560	1149
UB 406×178×74	413	180	9.7	16	94.5	74	26200	1269
UB 457×191×67	454	191	8.5	12.7	85.6	67	29400	1295
UB 457×191×74	457	190	9	14.5	94.6	74	33300	1457
UB 457×191×82	460	192	9.9	16	104.5	82	36700	1596
UB 457×191×89	463	192	10.5	17.7	114	89	40900	1767
UB 457×191×98	467	193	11.4	19.6	125	98	45300	1941
UB 533×210×82	528	209	9.6	13.2	105	82	47600	1803
UB 533×210×92	533	209	10.2	15.6	118	92	55100	2068
UB 533×210×101	537	210	10.8	17.4	129	101	61700	2298
UB 533×210×109	540	211	11.6	19	139	109	66700	2470
UB 533×210×122	544	212	12.8	21.3	156	122	75500	2776
UB 610×229×101	602	228	10.6	14.8	129	101	75600	2512
UB 610×229×113	607	228	11.2	17.3	145	113	87400	2880
UB 610×229×125	612	229	11.9	19.6	160	125	98300	3212
UB 610×229×140	617	230	13.1	22.1	179	140	111600	3617
UB 610×305×149	604	305	12.1	18.8	190	149	126200	4179
UB 610×305×179	614	307	14.2	23.2	228	179	156000	5081
UB 610×305×238	630	311	18.4	31.4	303	238	209500	6651
UB 686×254×125	678	254	11.8	16.3	160	125	117400	3463
UB 686×254×140	683	254	12.4	19	179	140	135900	3980
UB 686×254×152	688	255	13.2	21	194	152	150000	4360
UB 686×254×170	694	256	14.5	23.7	217	170	169000	4870
UB 762×267×147	757	267	12.8	19.4	188	147	184000	4862
UB 762×267×173	765	268	14.3	23.6	221	173	221000	5780
UB 762×267×197	773	269	16	27.6	252	197	254000	6572
UB 838×292×176	827	292	14.3	19.9	225	176	254100	6146
UB 838×292×194	833	292	14.7	22.8	248	194	287100	6895
UB 838×292×226	841	293	16.1	26.8	289	226	339000	8062
UB 914×305×201	904	305	15.2	20.2	256	201	321400	7111
UB 914×305×224	910	305	15.9	23.4	285	224	365100	8024
UB 914×305×253	918	307	17.3	26.9	323	253	419000	9129
UB 914×305×289	927	308	19.2	30.6	369	289	485000	10464
UB 914×419×343	914	419	19.4	32	437	343	620100	13569
UB 914×419×388	921	421	21.4	36.6	494	388	722600	15697