Square Hollow Sections

Grade: to BS EN 10025 – S235JR (S355 available on request)

Size (mm)	Thickness (mm)	Mass per Meter (kg)	Metres per Tonne (approx)
20 x 20	2.0	1.12	897
	2.5	1.35	741
25 x 25	2.0	1.43	700
	2.5	1.74	574
	3.0	2.04	491
30 x 30	2.0	1.65	606
	2.5	2.14	468
	3.0	2.51	399
40 x 40	2.0	2.28	439
	2.5	2.92	342
	3.0	3.45	290
	4.0	4.46	224
	5.0	5.40	185
50 x 50	2.0	2.91	344
	2.5	3.71	270
	3.0	4.39	228
	4.0	5.72	175
	5.0	6.97	143
	6.3	8.49	118
60 x 60	3.0	5.34	187
	4.0	6.97	143
	5.0	8.54	117
	6.3	10.47	96
	8.0	12.82	78
70 x 70	3.0	6.28	159
	3.6	7.46	134
	4.0	7.86	127
	5.0	10.11	99
	6.3	12.45	80
	8.0	15.33	65
80 x 80	3.0	7.22	139
	3.6	8.59	116
	4.0	9.11	110
	5.0	11.68	86
	6.3	14.43	69
	8.0	17.84	56
90 x 90	3.0	7.95	126
	3.6	9.72	103
	4.0	10.40	96
	5.0	13.30	75
	6.0	15.62	64
100 x 100	3.0	8.89	112
	4.0	12.00	83
	5.0	14.80	68
	6.0	16.70	60
	8.0	22.87	44
	10.0	27.88	36
120 x 120	4.0	14.50	69
	5.0	17.96	56
	6.3	22.34	45
	8.0	27.89	36
	10.0	34.16	29
	12.5	41.60	24
140 x 140	5.0	21.10	47
	6.3	26.30	38
	8.0	32.92	30
	10.0	40.44	25
	12.5	49.45	20
150 x 150	5.0	22.67	44
	6.0	26.20	38
	8.0	35.43	28
	10.0	43.58	23
	12.5	53.38	19
180 x 180	6.3	34.21	29
	8.0	42.96	23
	10.0	53.00	19
	12.5	65.15	15
	16.0	81.42	12
200 x 200	6.3	38.17	26
	8.0	47.99	21
	10.0	59.28	17
	12.5	73.00	14
	16.0	91.47	11
250 x 250	6.3	48.06	21
	8.0	60.55	17
	10.0	74.98	13
	12.5	92.63	11
	16.0	116.60	9
300 x 300	6.3	57.90	17
	8.0	73.10	14
	10.0	90.70	11
	12.5	112.00	9
	16.0	142.00	7
350 x 350	8.0	85.70	12
	10.0	106.00	9
	12.5	132.00	8
	16.0	167.00	6
400 x 400	10.0	122.00	8
	12.5	152.00	7
	16.0	192.00	5