I Beam Size and Weight Chart (With PDF File to Download)

What is I beam?

I-beam, also known as universal beam, is a long strip of steel with I-shaped section.

I-beam is divided into ordinary I-beam and light I-beam. It is a section steel with I-section shape.

Types of I-beam steel

I-beam is mainly divided into ordinary I-beam, light I-beam and wide flange I-beam.

According to the height ratio of flange to web, it is divided into wide, medium and narrow flange I-beams.

The specifications of the first two are #10-60, that is, the corresponding height is 10cm-60cm.

At the same height, the light I-beam has narrow flange, thin web and light weight.

Wide flange I-beam, also known as H-beam, is characterized by two parallel legs and no inclination on the inner side of the legs.

It belongs to economic section steel and is rolled on four high universal mill, so it is also called “universal I-beam”.

Ordinary I-beam and light I-beam have formed national standards.

I beam weight calculator

H Beam Weight Calculator

Note:

If you want to get the I beam sizes in inches, you can use our mm to inches calculator to get the results.


I beam size & weight chart

You can watch the below video first to learn how to calculate the weight if I-beam.

And the following chart for i beam dimensions and weight can be your reference.

Ordinary Hot Rolled I Beam Sizes & Weight Chart

SpecificationsHeight (mm)Flange Width (mm)Web Thickness (mm)Theoretical Weight (kg/m)
10100684.511.261
12.612674514.223
14140805.516.89
1616088620.513
18180946.524.143
20a200100727.929
20b200102931.069
22a2201107.533.07
22b2201129.536.524
25a250116838.105
25b2501181042.03
28a2801228.543.492
28b28012410.547.888
32a3201309.552.717
32b32013211.557.741
32c32013413.562.765
36a3601361060.037
36b3601381265.689
36c3601401471.341
40a40014210.567.598
40b40014412.573.878
40c40014614.580.158
45a45015011.580.42
45b45015213.587.485
45c45015415.594.55
50a5001581293.654
50b50016014101.504
50c50016216109.354
56a56016612.5106.316
56b56016814.5115.108
56c56017016.5123.9
63a63017613121.407
63b63017815131.298
63c63018017141.189

Light Duty Hot Rolled I Beam Sizes & Weight Chart

SpecificationsHeight (mm)Flange Width (mm)Web Thickness (mm)Theoretical Weight (kg/m)
880504.57.52
10100554.59.46
12120644.811.5
14140734.913.7
1616081515.9
18180905.118.4
18a1801005.119.9
202001005.221
20a2001105.222.7
222201105.424
22a2201205.425.8
242401155.627.3
24a2401255.629.4
27270125631.5
27a270135633.9
303001356.536.5
30a3001456.539.2
33330140742.2
363601457.548.6
40400155856.1
454501608.665.2
505001709.576.8
5555018010.389.8
6060019011.1104
6565020012120
7070021013138
70a70021015158
70b70021017.5184

I beam sizes chart PDF download

How to calculate load bearing of I-beam?

For example:

How much can I-beam #25 bear when the span is 4m and the load is evenly distributed?

Calculation:

For #25 I-beam, W = 401.4cm3, [σ]=210N/mm2, overall stability coefficient φb=0.93

Bending moment formula M = QL2/8
Strength formula σ = M/W

According to the formula:
q=8σW/L2=8*210*401400/4*4=42.1kN/m

Overall stability requirement: 42.1 * 0.93 = 39.2kn/m

Partial factor requirement (safety factor): 39.2 / 1.4 = 28kN/m

Safe use: 28kN/m

The above calculation does not consider the self weight and deflection checking calculation of I-beam.

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10 thoughts on “I Beam Size and Weight Chart (With PDF File to Download)”

    1. Hello, my name is Nelson:
      I want to build a 2 ton gantry with a span of 10 ft. How tall and thickness does an I beam has to be.

  1. Good morning

    i Whant to build a 5 ton single Girder gantry crane, what size I beam should i need for the top main beam and what size beam can i use for the legs.

    thank you in advance

    Jimmy

  2. erlinda budoyan

    Hi can youmplease help. I am building Root cellar 20ftx30ft and on top of it a church for 150people including children can you please give me idea what Ibeam or Hbeam should I used on the rootcellar that can also carry a worshipper 150 more or less? how many post Appreciate much your reply.

    All the best

    erlinda

    [email protected]

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