Equal Leg Angles — weight chart

All 72 sections from IS 808 Table 9 - Equal Leg Angles. Click a designation for the full property table and the cross-section drawn to its own dimensions.

Equal Leg Angles: mass and section properties
Designation	Weightkg/m	Areacm²	Leg Amm	Leg Bmm	Thicknessmm	Ixxcm⁴	Zxxcm³
∠ 20 × 20 × 3	0.9	1.14	20	20	3	0.4	0.29
∠ 20 × 20 × 4	1.16	1.47	20	20	4	0.5	0.37
∠ 25 × 25 × 3	1.14	1.45	25	25	3	0.83	0.46
∠ 25 × 25 × 4	1.48	1.88	25	25	4	1.04	0.6
∠ 25 × 25 × 5	1.8	2.29	25	25	5	1.23	0.72
∠ 30 × 30 × 3	1.38	1.76	30	30	3	1.47	0.68
∠ 30 × 30 × 4	1.8	2.29	30	30	4	1.86	0.88
∠ 30 × 30 × 5	2.2	2.8	30	30	5	2.22	1.07
∠ 35 × 35 × 3	1.62	2.06	35	35	3	2.38	0.94
∠ 35 × 35 × 4	2.11	2.69	35	35	4	3.04	1.22
∠ 35 × 35 × 5	2.59	3.3	35	35	5	3.65	1.49
∠ 35 × 35 × 6	3.06	3.89	35	35	6	4.2	1.74
∠ 40 × 40 × 3	1.86	2.37	40	40	3	3.61	1.24
∠ 40 × 40 × 4	2.44	3.1	40	40	4	4.63	1.62
∠ 40 × 40 × 5	2.99	3.81	40	40	5	5.58	1.97
∠ 40 × 40 × 6	3.54	4.5	40	40	6	6.46	2.32
∠ 45 × 45 × 3	2.1	2.67	45	45	3	5.2	1.58
∠ 45 × 45 × 4	2.75	3.5	45	45	4	6.7	2.07
∠ 45 × 45 × 5	3.39	4.31	45	45	5	8.1	2.53
∠ 45 × 45 × 6	4.01	5.1	45	45	6	9.42	2.98
∠ 50 × 50 × 3	2.34	2.99	50	50	3	7.21	1.97
∠ 50 × 50 × 4	3.08	3.92	50	50	4	9.32	2.57
∠ 50 × 50 × 5	3.79	4.83	50	50	5	11.3	3.16
∠ 50 × 50 × 6	4.49	5.72	50	50	6	13.2	3.72
∠ 55 × 55 × 4	3.4	4.33	55	55	4	12.5	3.14
∠ 55 × 55 × 5	4.19	5.34	55	55	5	15.2	3.85
∠ 55 × 55 × 6	4.97	6.33	55	55	6	17.8	4.55
∠ 55 × 55 × 8	6.48	8.25	55	55	8	22.5	5.87
∠ 60 × 60 × 4	3.71	4.73	60	60	4	16.4	3.76
∠ 60 × 60 × 5	4.58	5.84	60	60	5	20	4.62
∠ 60 × 60 × 6	5.44	6.93	60	60	6	23.4	5.46
∠ 60 × 60 × 8	7.1	9.05	60	60	8	29.8	7.06
∠ 65 × 65 × 4	4.03	5.13	65	65	4	21	4.43
∠ 65 × 65 × 5	4.98	6.34	65	65	5	25.7	5.45
∠ 65 × 65 × 6	5.91	7.53	65	65	6	30.1	6.45
∠ 65 × 65 × 8	7.73	9.85	65	65	8	38.4	8.36
∠ 70 × 70 × 5	5.38	6.86	70	70	5	32.3	6.36
∠ 70 × 70 × 6	6.39	8.15	70	70	6	38	7.53
∠ 70 × 70 × 8	8.37	10.6	70	70	8	48.5	9.77
∠ 70 × 70 × 10	10.29	13.1	70	70	10	58.3	11.9
∠ 75 × 75 × 5	5.77	7.36	75	75	5	40	7.3
∠ 75 × 75 × 6	6.86	8.75	75	75	6	47.1	8.7
∠ 75 × 75 × 8	9	11.4	75	75	8	60.3	11.3
∠ 75 × 75 × 10	11.07	14.1	75	75	10	72.6	13.8
∠ 80 × 80 × 6	7.36	9.38	80	80	6	57.6	9.9
∠ 80 × 80 × 8	9.65	12.3	80	80	8	74	12.9
∠ 80 × 80 × 10	11.88	15.1	80	80	10	89.2	15.8
∠ 80 × 80 × 12	14.05	17.9	80	80	12	103	18.5
∠ 90 × 90 × 6	8.32	10.6	90	90	6	83	12.7
∠ 90 × 90 × 8	10.92	13.9	90	90	8	107	16.5
∠ 90 × 90 × 10	13.47	17.1	90	90	10	129	20.2
∠ 90 × 90 × 12	15.95	20.3	90	90	12	150	23.8
∠ 100 × 100 × 6	9.26	11.8	100	100	6	115	15.7
∠ 100 × 100 × 8	12.18	15.5	100	100	8	148	20.6
∠ 100 × 100 × 10	15.04	19.1	100	100	10	180	25.3
∠ 100 × 100 × 12	17.83	22.7	100	100	12	210	29.8
∠ 110 × 110 × 8	13.4	17	110	110	8	196	24.6
∠ 110 × 110 × 10	16.58	21.1	110	110	10	240	30.4
∠ 110 × 110 × 12	19.68	25	110	110	12	281	35.9
∠ 110 × 110 × 16	25.71	32.7	110	110	16	357	46.5
∠ 130 × 130 × 8	15.92	20.2	130	130	8	330	34.8
∠ 130 × 130 × 10	19.72	25.1	130	130	10	405	43.1
∠ 130 × 130 × 12	23.45	29.8	130	130	12	476	51
∠ 130 × 130 × 16	30.74	39.1	130	130	16	609	66.3
∠ 150 × 150 × 10	22.93	29.2	150	150	10	633	58
∠ 150 × 150 × 12	27.29	34.7	150	150	12	746	68.8
∠ 150 × 150 × 16	35.84	45.6	150	150	16	958	89.7
∠ 150 × 150 × 20	44.12	56.2	150	150	20	1,150	109
∠ 200 × 200 × 12	36.85	46.9	200	200	12	1,820	125
∠ 200 × 200 × 16	48.53	61.8	200	200	16	2,360	163
∠ 200 × 200 × 20	59.96	76.3	200	200	20	2,870	201
∠ 200 × 200 × 25	73.9	94.1	200	200	25	3,470	246

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Other tables

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Common questions about Equal Leg Angles

How many equal leg angles are there in IS 808 : 2021?

72, from ∠ 20 × 20 × 3 at 0.9 kg per metre to ∠ 200 × 200 × 25 at 73.9 kg per metre. They are printed in IS 808 Table 9 - Equal Leg Angles.

Which is the lightest equal leg angle in this table?

∠ 20 × 20 × 3, at 0.9 kg per metre with a sectional area of 1.14 cm². The heaviest is ∠ 200 × 200 × 25 at 73.9 kg per metre.

How do I work out the weight of a length from this chart?

Multiply the mass per metre by the length and the number of pieces. ∠ 20 × 20 × 3 at 0.9 kg/m, in 6 m lengths, ten of them, is 0.9 × 6 × 10 = 54 kg. The standard publishes the mass, so there is nothing to compute from the area.

Where these figures come from. IS 808 Table 9 - Equal Leg Angles Section properties are facts published in the standards, and they are reproduced here as printed. Where a standard contradicts itself, both of its figures are shown and neither is corrected.

What is ours. The selection and arrangement of these tables, the checks run against them, and the findings those checks produced — which rows disagree with themselves, which figures were superseded by amendment, and which could not be read — are QuickBOQ’s work, and so is this wording. Quote the numbers freely; they belong to everyone. Copying the compilation and the commentary is a different thing, and we would rather you linked to it.