Wide Flange Beam Sizes in Metric (mm & kg/m)

This chart lists all 289 wide flange (W) beams in the AISC Shapes Database v16.0 in metric units: mass in kg/m, dimensions in mm, and section properties in mm⁴ and mm³. Each row also shows the imperial designation, so you can match a US drawing to SI values. Sizes run from W150x13 (W6x8.5) to W920x1377 (W36x925).

How Metric W Shape Names Work

A metric name such as W410x38.8 gives the nominal depth in millimeters (410) and the mass in kilograms per meter (38.8). It is the same rolled section as W16x26: the metric name is a conversion, not a different beam. The nominal depth is rounded, so always use the tabulated depth for detailing. W410x38.8 is actually 399 mm deep.

Metric Wide Flange Sizes: W100 to W250 (W4 to W10)

Metric shape	Imperial	Mass (kg/m)	Depth (mm)	Flange width (mm)	Web (mm)	Flange (mm)	Ix (10⁶ mm⁴)	Sx (10³ mm³)
W100x19.3	W4x13	19.3	106	103	7.11	8.76	4.7	89.5
W130x23.8	W5x16	23.8	127	127	6.1	9.14	8.91	140
W130x28.1	W5x19	28.1	131	128	6.86	10.9	10.9	167
W150x13	W6x8.5	13	148	100	4.32	4.95	6.2	83.6
W150x13.5	W6x9	13.5	150	100	4.32	5.46	6.83	91.1
W150x18	W6x12	18	153	102	5.84	7.11	9.2	120
W150x22.5	W6x15	22.5	152	152	5.84	6.6	12.1	159
W150x24	W6x16	24	160	102	6.6	10.3	13.4	167
W150x29.8	W6x20	29.8	157	153	6.6	9.27	17.2	220
W150x37.1	W6x25	37.1	162	154	8.13	11.6	22.2	274
W200x15	W8x10	15	200	100	4.32	5.21	12.8	128
W200x19.3	W8x13	19.3	203	102	5.84	6.48	16.5	162
W200x22.5	W8x15	22.5	206	102	6.22	8	20	193
W200x26.6	W8x18	26.6	207	133	5.84	8.38	25.8	249
W200x31.3	W8x21	31.3	210	134	6.35	10.2	31.3	298
W200x35.9	W8x24	35.9	201	165	6.22	10.2	34.4	342
W200x41.7	W8x28	41.7	205	166	7.24	11.8	40.8	398
W200x46.1	W8x31	46.1	203	203	7.24	11	45.8	451
W200x52	W8x35	52	206	204	7.87	12.6	52.9	511
W200x59	W8x40	59	210	205	9.14	14.2	60.8	582
W200x71	W8x48	71	216	206	10.2	17.4	76.6	708
W200x86	W8x58	86	222	209	13	20.6	94.9	852
W200x100	W8x67	100	229	210	14.5	23.7	113	990
W250x17.9	W10x12	17.9	251	101	4.83	5.33	22.4	179
W250x22.3	W10x15	22.3	254	102	5.84	6.86	28.7	226
W250x25.3	W10x17	25.3	257	102	6.1	8.38	34.1	265
W250x28.4	W10x19	28.4	259	102	6.35	10	40.1	308
W250x32.7	W10x22	32.7	259	146	6.1	9.14	49.1	380
W250x38.5	W10x26	38.5	262	147	6.6	11.2	59.9	457
W250x44.8	W10x30	44.8	267	148	7.62	13	70.8	531
W250x49.1	W10x33	49.1	247	202	7.37	11	71.2	574
W250x58	W10x39	58	252	203	8	13.5	87	690
W250x67	W10x45	67	257	204	8.89	15.7	103	805
W250x73	W10x49	73	254	254	8.64	14.2	113	895
W250x80	W10x54	80	257	254	9.4	15.6	126	983
W250x89	W10x60	89	259	257	10.7	17.3	142	1,090
W250x101	W10x68	101	264	257	11.9	19.6	164	1,240
W250x115	W10x77	115	269	259	13.5	22.1	189	1,410
W250x131	W10x88	131	274	262	15.4	25.1	222	1,610
W250x149	W10x100	149	282	262	17.3	28.4	259	1,840
W250x167	W10x112	167	290	264	19.2	31.8	298	2,060

Metric Wide Flange Sizes: W310 to W460 (W12 to W18)

Metric shape	Imperial	Mass (kg/m)	Depth (mm)	Flange width (mm)	Web (mm)	Flange (mm)	Ix (10⁶ mm⁴)	Sx (10³ mm³)
W310x21	W12x14	21	302	101	5.08	5.72	36.9	244
W310x23.8	W12x16	23.8	305	101	5.59	6.73	42.9	280
W310x28.3	W12x19	28.3	310	102	5.97	8.89	54.1	349
W310x32.7	W12x22	32.7	312	102	6.6	10.8	64.9	416
W310x38.7	W12x26	38.7	310	165	5.84	9.65	84.9	547
W310x44.5	W12x30	44.5	312	166	6.6	11.2	99.1	633
W310x52	W12x35	52	318	167	7.62	13.2	119	747
W310x60	W12x40	60	302	203	7.49	13.1	128	844
W310x67	W12x45	67	307	204	8.51	14.6	145	946
W310x74	W12x50	74	310	205	9.4	16.3	163	1,050
W310x79	W12x53	79	307	254	8.76	14.6	177	1,160
W310x86	W12x58	86	310	254	9.14	16.3	198	1,280
W310x97	W12x65	97	307	305	9.91	15.4	222	1,440
W310x107	W12x72	107	312	305	10.9	17	248	1,600
W310x117	W12x79	117	315	307	11.9	18.7	276	1,750
W310x129	W12x87	129	318	307	13.1	20.6	308	1,930
W310x143	W12x96	143	323	310	14	22.9	347	2,150
W310x158	W12x106	158	328	310	15.5	25.1	388	2,380
W310x179	W12x120	179	333	312	18	28.2	445	2,670
W310x202	W12x136	202	340	315	20.1	31.8	516	3,050
W310x226	W12x152	226	348	318	22.1	35.6	595	3,420
W310x253	W12x170	253	356	320	24.4	39.6	687	3,850
W310x283	W12x190	283	366	323	26.9	44.2	787	4,310
W310x313	W12x210	313	373	325	30	48.3	891	4,790
W310x342	W12x230	342	384	328	32.8	52.6	1,010	5,260
W310x375	W12x252	375	391	330	35.6	57.2	1,130	5,780
W310x415	W12x279	415	404	333	38.9	62.7	1,290	6,440
W310x454	W12x305	454	414	335	41.4	68.8	1,480	7,130
W310x500	W12x336	500	427	340	45.2	75.2	1,690	7,910
W360x32.9	W14x22	32.9	348	127	5.84	8.51	82.8	475
W360x39	W14x26	39	353	128	6.48	10.7	102	578
W360x44	W14x30	44	351	171	6.86	9.78	121	688
W360x51	W14x34	51	356	171	7.24	11.6	142	796
W360x57.8	W14x38	57.8	358	172	7.87	13.1	160	895
W360x64	W14x43	64	348	203	7.75	13.5	178	1,030
W360x72	W14x48	72	351	204	8.64	15.1	201	1,150
W360x79	W14x53	79	353	205	9.4	16.8	225	1,270
W360x91	W14x61	91	353	254	9.53	16.4	266	1,510
W360x101	W14x68	101	356	254	10.5	18.3	301	1,690
W360x110	W14x74	110	361	257	11.4	19.9	331	1,840
W360x122	W14x82	122	363	257	13	21.7	367	2,020
W360x134	W14x90	134	356	368	11.2	18	416	2,340
W360x147	W14x99	147	361	371	12.3	19.8	462	2,570
W360x162	W14x109	162	363	371	13.3	21.8	516	2,830
W360x179	W14x120	179	368	373	15	23.9	574	3,110
W360x196	W14x132	196	373	373	16.4	26.2	637	3,420
W360x216	W14x145	216	376	394	17.3	27.7	712	3,800
W360x237	W14x159	237	381	396	18.9	30.2	791	4,160
W360x262	W14x176	262	386	399	21.1	33.3	891	4,600
W360x287	W14x193	287	394	399	22.6	36.6	999	5,080
W360x314	W14x211	314	399	401	24.9	39.6	1,110	5,540
W360x347	W14x233	347	406	404	27.2	43.7	1,250	6,150
W360x382	W14x257	382	417	406	30	48	1,420	6,800
W360x421	W14x283	421	424	409	32.8	52.6	1,600	7,520
W360x463	W14x311	463	434	411	35.8	57.4	1,800	8,290
W360x509	W14x342	509	445	417	39.1	62.7	2,040	9,140
W360x551	W14x370	551	455	419	42.2	67.6	2,260	9,950
W360x592	W14x398	592	465	422	45	72.4	2,500	10,700
W360x634	W14x426	634	475	424	47.8	77.2	2,750	11,600
W360x677	W14x455	677	483	427	51.3	81.5	2,990	12,400
W360x744	W14x500	744	498	432	55.6	88.9	3,420	13,700
W360x818	W14x550	818	513	437	60.5	97	3,930	15,300
W360x900	W14x605	900	531	442	66	106	4,500	17,000
W360x990	W14x665	990	549	450	71.9	115	5,160	18,800
W360x1086	W14x730	1,090	569	455	78	125	5,950	21,000
W360x1202	W14x808	1,200	579	472	95	130	6,620	22,800
W360x1299	W14x873	1,300	599	478	100	140	7,530	25,100
W410x38.8	W16x26	38.8	399	140	6.35	8.76	125	629
W410x46.1	W16x31	46.1	404	140	6.99	11.2	156	773
W410x53	W16x36	53	404	178	7.49	10.9	186	926
W410x60	W16x40	60	406	178	7.75	12.8	216	1,060
W410x67	W16x45	67	409	179	8.76	14.4	244	1,190
W410x75	W16x50	75	414	180	9.65	16	274	1,330
W410x85	W16x57	85	417	181	10.9	18.2	316	1,510
W410x100	W16x67	100	414	259	10	16.9	397	1,920
W410x114	W16x77	114	419	262	11.6	19.3	462	2,200
W410x132	W16x89	132	427	264	13.3	22.2	541	2,540
W410x149	W16x100	149	432	264	14.9	25	620	2,870
W460x52	W18x35	52	450	152	7.62	10.8	212	944
W460x60	W18x40	60	455	153	8	13.3	255	1,120
W460x68	W18x46	68	460	154	9.14	15.4	296	1,290
W460x74	W18x50	74	457	191	9.02	14.5	333	1,460
W460x82	W18x55	82	460	191	9.91	16	370	1,610
W460x89	W18x60	89	462	192	10.5	17.7	410	1,770
W460x97	W18x65	97	467	193	11.4	19.1	445	1,920
W460x106	W18x71	106	470	194	12.6	20.6	487	2,080
W460x113	W18x76	113	462	279	10.8	17.3	554	2,390
W460x128	W18x86	128	467	282	12.2	19.6	637	2,720
W460x144	W18x97	144	472	282	13.6	22.1	728	3,080
W460x158	W18x106	158	475	284	15	23.9	795	3,340
W460x177	W18x119	177	483	287	16.6	26.9	912	3,790
W460x193	W18x130	193	490	284	17	30.5	1,020	4,200
W460x213	W18x143	213	495	284	18.5	33.5	1,140	4,620
W460x235	W18x158	235	500	287	20.6	36.6	1,270	5,080
W460x260	W18x175	260	508	290	22.6	40.4	1,440	5,640
W460x286	W18x192	286	518	292	24.4	44.5	1,610	6,230
W460x315	W18x211	315	526	295	26.9	48.5	1,800	6,870
W460x349	W18x234	349	536	297	29.5	53.6	2,040	7,640
W460x384	W18x258	384	546	300	32.5	58.4	2,290	8,420
W460x421	W18x283	421	556	302	35.6	63.5	2,570	9,260
W460x464	W18x311	464	566	305	38.6	69.6	2,900	10,200

Metric Wide Flange Sizes: W530 to W1100 (W21 to W44)

Metric shape	Imperial	Mass (kg/m)	Depth (mm)	Flange width (mm)	Web (mm)	Flange (mm)	Ix (10⁶ mm⁴)	Sx (10³ mm³)
W530x66	W21x44	66	526	165	8.89	11.4	351	1,340
W530x72	W21x48	72	523	207	8.89	10.9	399	1,520
W530x74	W21x50	74	528	166	9.65	13.6	410	1,550
W530x82	W21x55	82	528	209	9.53	13.3	475	1,800
W530x85	W21x57	85	536	167	10.3	16.5	487	1,820
W530x92	W21x62	92	533	209	10.2	15.6	554	2,080
W530x101	W21x68	101	536	210	10.9	17.4	616	2,290
W530x109	W21x73	109	538	211	11.6	18.8	666	2,470
W530x123	W21x83	123	544	212	13.1	21.2	762	2,800
W530x138	W21x93	138	549	214	14.7	23.6	862	3,150
W530x150	W21x101	150	544	312	12.7	20.3	1,010	3,720
W530x165	W21x111	165	546	312	14	22.2	1,110	4,080
W530x182	W21x122	182	551	315	15.2	24.4	1,230	4,470
W530x196	W21x132	196	554	315	16.5	26.4	1,340	4,830
W530x219	W21x147	219	561	318	18.3	29.2	1,510	5,390
W530x248	W21x166	248	572	315	19.1	34.5	1,780	6,230
W530x272	W21x182	272	577	318	21.1	37.6	1,970	6,830
W530x300	W21x201	300	584	320	23.1	41.4	2,210	7,550
W530x332	W21x223	332	594	323	25.4	45.5	2,530	8,520
W530x369	W21x248	369	602	325	27.9	50.5	2,840	9,440
W530x409	W21x275	409	612	328	31	55.6	3,200	10,500
W610x82	W24x55	82	599	178	10	12.8	562	1,870
W610x92	W24x62	92	602	179	10.9	15	645	2,150
W610x101	W24x68	101	602	228	10.5	14.9	762	2,520
W610x113	W24x76	113	607	228	11.2	17.3	874	2,880
W610x125	W24x84	125	612	229	11.9	19.6	986	3,210
W610x140	W24x94	140	617	230	13.1	22.2	1,120	3,640
W610x153	W24x103	153	622	229	14	24.9	1,250	4,010
W610x155	W24x104	155	612	325	12.7	19.1	1,290	4,230
W610x174	W24x117	174	617	325	14	21.6	1,470	4,770
W610x195	W24x131	195	622	328	15.4	24.4	1,670	5,390
W610x217	W24x146	217	627	328	16.5	27.7	1,910	6,080
W610x241	W24x162	241	635	330	17.9	31	2,150	6,780
W610x262	W24x176	262	640	328	19.1	34	2,360	7,370
W610x285	W24x192	285	648	330	20.6	37.1	2,610	8,050
W610x307	W24x207	307	653	330	22.1	39.9	2,840	8,700
W610x341	W24x229	341	660	333	24.4	43.9	3,180	9,640
W610x372	W24x250	372	668	335	26.4	48	3,530	10,600
W610x415	W24x279	415	678	338	29.5	53.1	4,000	11,800
W610x455	W24x306	455	688	340	32	57.9	4,450	12,900
W610x498	W24x335	498	699	343	35.1	63	4,950	14,200
W610x551	W24x370	551	711	348	38.6	69.1	5,580	15,700
W690x125	W27x84	125	678	254	11.7	16.3	1,190	3,490
W690x140	W27x94	140	683	254	12.4	18.9	1,360	3,980
W690x152	W27x102	152	688	254	13.1	21.1	1,510	4,380
W690x170	W27x114	170	693	257	14.5	23.6	1,700	4,900
W690x192	W27x129	192	701	254	15.5	27.9	1,980	5,650
W690x217	W27x146	217	696	356	15.4	24.8	2,360	6,780
W690x240	W27x161	240	701	356	16.8	27.4	2,630	7,510
W690x265	W27x178	265	706	358	18.4	30.2	2,920	8,280
W690x289	W27x194	289	714	356	19.1	34	3,270	9,160
W690x323	W27x217	323	721	358	21.1	38.1	3,710	10,300
W690x350	W27x235	350	729	361	23.1	40.9	4,040	11,100
W690x384	W27x258	384	737	363	24.9	45	4,500	12,200
W690x419	W27x281	419	744	366	26.9	49	4,950	13,300
W690x457	W27x307	457	752	366	29.5	53.1	5,450	14,500
W690x500	W27x336	500	762	371	32	57.9	6,080	15,900
W690x548	W27x368	548	772	373	35.1	63	6,740	17,400
W690x802	W27x539	802	826	389	50	89.9	10,700	25,700
W760x134	W30x90	134	749	264	11.9	15.5	1,500	4,010
W760x147	W30x99	147	754	267	13.2	17	1,660	4,410
W760x161	W30x108	161	757	267	13.8	19.3	1,860	4,900
W760x173	W30x116	173	762	267	14.4	21.6	2,050	5,390
W760x185	W30x124	185	767	267	14.9	23.6	2,230	5,820
W760x196	W30x132	196	770	267	15.6	25.4	2,400	6,230
W760x220	W30x148	220	780	267	16.5	30	2,780	7,140
W760x257	W30x173	257	772	381	16.6	27.2	3,430	8,870
W760x284	W30x191	284	780	381	18	30.2	3,830	9,830
W760x314	W30x211	314	785	384	19.7	33.5	4,290	10,900
W760x350	W30x235	350	795	384	21.1	38.1	4,870	12,300
W760x389	W30x261	389	803	386	23.6	41.9	5,450	13,600
W760x434	W30x292	434	813	389	25.9	47	6,200	15,200
W760x484	W30x326	484	823	391	29	52.1	6,990	17,000
W760x531	W30x357	531	833	394	31.5	56.9	7,780	18,700
W760x582	W30x391	582	843	396	34.5	62	8,620	20,500
W840x176	W33x118	176	836	292	14	18.8	2,460	5,880
W840x193	W33x130	193	841	292	14.7	21.7	2,790	6,650
W840x210	W33x141	210	846	292	15.4	24.4	3,100	7,340
W840x226	W33x152	226	851	295	16.1	26.9	3,400	7,980
W840x251	W33x169	251	859	292	17	31	3,870	9,000
W840x299	W33x201	299	856	399	18.2	29.2	4,830	11,200
W840x329	W33x221	329	861	401	19.7	32.5	5,370	12,400
W840x359	W33x241	359	869	404	21.1	35.6	5,910	13,600
W840x392	W33x263	392	876	401	22.1	39.9	6,620	15,100
W840x433	W33x291	433	884	404	24.4	43.9	7,370	16,700
W840x473	W33x318	473	894	406	26.4	48	8,120	18,200
W840x527	W33x354	527	904	409	29.5	53.1	9,160	20,300
W840x576	W33x387	576	914	411	32	57.9	10,100	22,100
W920x201	W36x135	201	904	305	15.2	20.1	3,250	7,190
W920x223	W36x150	223	912	305	15.9	23.9	3,760	8,260
W920x238	W36x160	238	914	305	16.5	25.9	4,060	8,880
W920x253	W36x170	253	919	305	17.3	27.9	4,370	9,520
W920x271	W36x182	271	922	307	18.4	30	4,700	10,200
W920x289	W36x194	289	927	307	19.4	32	5,040	10,900
W920x313	W36x210	313	932	310	21.1	34.5	5,490	11,800
W920x344	W36x231	344	927	419	19.3	32	6,490	14,000
W920x345	W36x232	345	943	307	22.1	39.9	6,240	13,300
W920x368	W36x247	368	932	419	20.3	34.3	6,950	15,000
W920x381	W36x256	381	951	310	24.4	43.9	6,990	14,700
W920x390	W36x262	390	937	422	21.3	36.6	7,450	15,900
W920x420	W36x282	420	942	422	22.5	39.9	8,160	17,200
W920x425	W36x286	425	960	312	26.9	49	7,870	16,400
W920x449	W36x302	449	947	424	24	42.7	8,780	18,500
W920x474	W36x318	474	970	315	30	54.1	8,820	18,200
W920x491	W36x330	491	958	422	25.9	47	9,700	20,300
W920x521	W36x350	521	980	320	33	58.9	9,820	20,000
W920x537	W36x361	537	965	424	28.4	51.1	10,700	22,100
W920x576	W36x387	576	993	323	36.1	65	11,000	22,300
W920x588	W36x395	588	975	427	31	55.9	11,900	24,400
W920x656	W36x441	656	988	432	34.5	62	13,400	27,000
W920x725	W36x487	725	998	434	38.1	68.1	15,000	30,000
W920x787	W36x529	787	1,010	437	40.9	73.9	16,500	32,600
W920x970	W36x652	970	1,040	447	50	89.9	21,100	40,300
W920x1077	W36x723	1,080	1,060	452	55.1	99.1	23,800	44,900
W920x1194	W36x802	1,190	1,080	457	60.5	109	27,000	49,800
W920x1269	W36x853	1,270	1,090	462	64	115	29,100	53,300
W920x1377	W36x925	1,380	1,090	472	76.7	115	30,400	55,600
W1000x222	W40x149	222	970	300	16	21.1	4,080	8,410
W1000x249	W40x167	249	980	300	16.5	26.2	4,830	9,830
W1000x272	W40x183	272	991	300	16.5	30.5	5,490	11,100
W1000x296	W40x199	296	983	401	16.5	27.2	6,200	12,600
W1000x314	W40x211	314	1,000	300	19.1	36.1	6,450	12,900
W1000x321	W40x215	321	991	401	16.5	31	6,950	14,100
W1000x350	W40x235	350	1,010	302	21.1	40.1	7,240	14,300
W1000x371	W40x249	371	1,000	401	19.1	36.1	8,160	16,300
W1000x393	W40x264	393	1,020	302	24.4	43.9	8,070	15,900
W1000x412	W40x277	412	1,010	401	21.1	40.1	9,120	18,000
W1000x415	W40x278	415	1,020	305	26.2	46	8,530	16,700
W1000x438	W40x294	438	1,030	305	26.9	49	9,120	17,700
W1000x443	W40x297	443	1,010	401	23.6	41.9	9,660	19,200
W1000x483	W40x324	483	1,020	404	25.4	46	10,700	21,000
W1000x486	W40x327	486	1,040	307	30	54.1	10,200	19,700
W1000x494	W40x331	494	1,040	310	31	54.1	10,300	19,800
W1000x539	W40x362	539	1,030	406	28.4	51.1	12,000	23,300
W1000x554	W40x372	554	1,030	409	29.5	52.1	12,300	23,900
W1000x584	W40x392	584	1,060	315	36.1	64	12,400	23,600
W1000x591	W40x397	591	1,040	409	31	55.9	13,300	25,600
W1000x642	W40x431	642	1,050	411	34	59.9	14,500	27,700
W1000x748	W40x503	748	1,070	417	39.1	70.1	17,300	32,400
W1000x883	W40x593	883	1,090	424	45.5	82	21,000	38,300
W1000x976	W40x655	976	1,110	429	50	89.9	23,500	42,500
W1100x343	W44x230	343	1,090	401	18	31	8,660	15,900
W1100x390	W44x262	390	1,100	401	19.9	36.1	10,000	18,200
W1100x433	W44x290	433	1,110	401	22	40.1	11,200	20,300
W1100x499	W44x335	499	1,120	404	26.2	45	12,900	23,100
W1100x548	W44x368	548	1,130	406	27.9	50	14,400	25,600
W1100x607	W44x408	607	1,140	409	31	55.1	16,100	28,300

Converting Between Metric and Imperial

1 in = 25.4 mm, 1 lb/ft = 1.488 kg/m, 1 in⁴ = 416,231 mm⁴ (0.416 ×10⁶ mm⁴) and 1 in³ = 16,387 mm³ (16.4 ×10³ mm³). AISC rounds metric values to three significant figures, so a converted number can differ slightly in the last digit.

See the imperial values in the wide flange beam sizes chart, or work out total weight in pounds or kilograms with the steel beam weight calculator.

Source: AISC Shapes Database v16.0, consistent with the AISC Steel Construction Manual, 16th Edition. Last updated: September 2026. Reference information only, not engineering advice. Disclaimer.