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Aluminium profile sizes and weights: box section, round tube, angle and channel in 6063-T6

Size and weight tables for aluminium square and rectangular tube (box section), round tube, equal and unequal angle and channel in EN AW-6063 T6, with the kg/m formulas and a comparison with steel.

Updated October 17, 2026

Extruded aluminium profiles are ordered by their outside dimensions and wall thickness. The tables below list the box sections, round tubes, angles and channels we supply in EN AW-6063 T6, with the nominal weight per metre, so you can check a drawing, a cutting list or a freight estimate quickly. For the alloy itself see aluminium alloy grades.

Aluminium square tube (square box section)

Square tube in 6063 T6, nominal weight in kg/m
Size (mm)Wall (mm)kg/m
10 × 1010.097
10 × 101.20.114
16 × 1620.302
20 × 201.50.300
20 × 2020.389
25 × 2520.497
30 × 301.50.462
30 × 3020.605
30 × 3030.875
30 × 3051.350
40 × 4020.821
40 × 4031.199
50 × 5021.037
50 × 5041.987
50 × 5052.430
55 × 5521.145
60 × 6021.253
60 × 6031.847
70 × 7021.469
80 × 8021.685
80 × 8086.221
100 × 10022.117
100 × 10044.147
120 × 12022.549
120 × 12033.791
150 × 15034.763
200 × 20036.383

Aluminium rectangular tube (rectangular box section)

Rectangular tube in 6063 T6, nominal weight in kg/m
Size (mm)Wall (mm)kg/m
20 × 1020.281
25 × 1720.410
30 × 101.20.244
30 × 1020.389
30 × 151.50.340
30 × 2020.497
40 × 201.50.462
40 × 2020.605
40 × 3020.713
50 × 101.50.462
50 × 2020.713
50 × 2520.767
50 × 3020.821
50 × 4020.929
60 × 2020.821
60 × 3020.929
60 × 4021.037
60 × 4031.523
75 × 321.20.678
75 × 3221.112
80 × 2021.037
80 × 401.50.948
80 × 4021.253
80 × 4031.847
80 × 4042.419
80 × 5021.361
80 × 6021.469
100 × 2021.253
100 × 4021.469
100 × 5021.577
100 × 5032.333
100 × 5053.780
120 × 4021.685
120 × 6021.901
150 × 5022.117
150 × 8033.629
150 × 10033.953
200 × 502.53.308
200 × 10034.763

Aluminium round tube

Round tube in 6063 T6 with walls up to 3 mm, nominal weight in kg/m
Outside diameter (mm)Wall (mm)kg/m
610.042
810.059
910.068
1010.076
102.50.159
1210.093
121.20.110
1310.102
131.20.120
1510.119
151.50.172
161.20.151
1620.238
191.20.181
2010.161
201.20.191
2020.305
221.20.212
2310.187
251.50.299
2520.390
252.50.477
2820.441
301.50.363
3020.475
302.50.583
352.50.689
401.50.490
4020.645
402.50.795
4230.992
452.50.901
501.50.617
501.650.677
5020.814
502.51.007
5031.196
552.31.028
6020.984
602.51.219
6031.450
701.50.872
7021.154
702.51.431
7521.238
752.51.537
8021.323
852.51.749
892.51.834
9021.493
902.51.856
1001.51.253
10021.663
1002.52.068
10032.468
1142.82.641
11532.850
12022.002
1252.52.598
1502.53.128
16033.995
20035.013

Thick-wall round tube with walls from 4 to 36 mm and diameters up to 230 mm is listed with all 128 sizes on the round tube page.

Aluminium angle

Equal angle in 6063 T6, nominal weight in kg/m
Size (mm)Thickness (mm)kg/m
10 × 101.20.061
15 × 1510.078
20 × 2010.105
20 × 2020.205
25 × 2510.132
25 × 2520.259
30 × 301.20.191
30 × 3020.313
30 × 3030.462
40 × 401.20.255
40 × 4020.421
40 × 4030.624
40 × 4040.821
40 × 4051.013
50 × 5020.529
50 × 5030.786
50 × 5051.282
60 × 6020.637
60 × 6030.948
60 × 6061.847
100 × 100105.130
Unequal angle in 6063 T6, nominal weight in kg/m
Size (mm)Thickness (mm)kg/m
20 × 1020.151
30 × 1520.232
30 × 201.20.158
30 × 2020.259
40 × 201.20.191
40 × 2020.313
40 × 2030.462
40 × 3020.367
50 × 2020.367
50 × 3020.421
60 × 201.50.318
75 × 5061.928
80 × 201.40.373
100 × 5083.067

Aluminium channel

U channel in 6063 T6, nominal weight in kg/m
Web × leg (mm)Thickness (mm)kg/m
13 × 131.20.126
15 × 151.20.146
20 × 101.50.162
20 × 131.20.149
20 × 201.20.194
20 × 3020.432

How to calculate aluminium profile weight

  • Square and rectangular tube — kg/m = 2 × (A + B − 2 × wall) × wall × 0.0027, with dimensions in mm. Example: 40 × 40 × 2 mm gives 2 × 76 × 2 × 0.0027 ≈ 0.82 kg/m.
  • Round tube — kg/m = (OD − wall) × wall × 0.00848. Example: 50 × 2 mm gives 48 × 2 × 0.00848 ≈ 0.81 kg/m.
  • Angle — kg/m = (A + B − thickness) × thickness × 0.0027. Example: 40 × 40 × 3 mm gives 77 × 3 × 0.0027 ≈ 0.62 kg/m.
  • Flat bar — kg/m = width × thickness × 0.0027. Example: 50 × 10 mm gives 1.35 kg/m. Flat bar in 6082 T6 is listed on the flat bar page.
  • The factors use a density of 2.70 kg/dm³. For other shapes use the weight calculator.

Aluminium or steel?

An aluminium profile weighs about a third of the same steel profile: 2.70 kg/dm³ against 7.85 kg/dm³. A 40 × 40 × 2 mm aluminium box section weighs about 0.82 kg/m; the same size in steel weighs about 2.4 kg/m. Aluminium is also about three times as flexible, so a frame of the same size deflects more. It does not rust, can be anodized or powder coated, and is easy to cut and drill. Steel sizes are in the hollow section tables.

Aluminium profiles we supply

Frequently asked questions

How much does a 6 m length of 40 × 40 × 2 mm aluminium box section weigh?

About 4.9 kg: 40 × 40 × 2 mm square tube in 6063 T6 weighs 0.821 kg per metre.

What is aluminium box section?

Box section is the British name for square and rectangular aluminium tube. The sizes and weights are the same; only the name differs.

How do I calculate the weight of aluminium angle?

Multiply (A + B − thickness) by the thickness and by 0.0027, with dimensions in mm. A 50 × 50 × 3 mm angle gives 97 × 3 × 0.0027 ≈ 0.79 kg/m.

Is aluminium tube lighter than steel tube?

Yes, about three times lighter at the same size, because aluminium has a density of 2.70 kg/dm³ against 7.85 kg/dm³ for steel. It is also less stiff, so check deflection when replacing steel.

Send your profile list with size, wall, length and finish in a quote request. EN 10204 3.1 certificates are available on request.

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Aluminium profile sizes and weight chart | Alterna Metals