H Beam Sizes and Weight Chart | MachineMFG (2024)

The dimensionsand weight ofH-beam steelcan be determined through severalmethods. Themost common approachis to calculatethe cross-sectional areausing the formula:

A = t1(H-2t2)+2Bt2+0.858r2


  • Hrepresents theheight of theweb
  • B representsthe width ofthe flange
  • t1 represents thethickness ofthe web
  • t2represents thethickness ofthe flange
  • rrepresents theradius of thefillet

Once thecross-sectional area(A) is obtained, the weightper unit lengthof the H-beam canbe easily calculated by multiplying Aby the densityof steel, whichis typically7.85 g/cm3 or0.00785 kg/cm3. Thisstraightforward calculationprovides an accurateestimate of theH-beam’s weightbased on itsspecific dimensions.

To simplify the process of determining the weight of H-beam steel, manufacturers often provide detailed theoretical weight tables for various standard sizes. These tables list the weight per meter for each H-beam specification, making it easy to find the information you need.

For instance, an H-beam with dimensions of 350mm in height and 175mm in width (350175mm) has a theoretical weight of 41.8kg per meter. Similarly, an H-beam measuring 400mm in height and 150mm in width (400150mm) weighs 55.8kg per meter.

These examples demonstrate that the weight of an H-beam is directly related to its dimensions. As the size of the H-beam changes, so does its theoretical weight per unit length. By referring to these weight tables, engineers and contractors can quickly estimate the total weight of the H-beams required for their projects, ensuring accurate material ordering and cost estimation.

While the cross-sectional area formula is the most widely used method for calculating the weight of H-beam steel, there are alternative approaches that can provide similar results. One such method involves using formulas that consider the width of the web plate and the base plate.

Another option is to refer to the standard section sizes and their corresponding weights, which are readily available in reference materials. However, it’s important to keep in mind that these calculations may have slight discrepancies when compared to the actual weight of the H-beam.

Typically, the difference between the theoretical weight and the actual weight falls within a range of 0.2% to 0.7%. This minor variance is due to factors such as manufacturing tolerances and variations in steel density. Despite these potential discrepancies, the formulas and reference tables provide a reliable means of estimating the weight of H-beam steel for practical applications.

What is the specific formula to calculate the weight of H-beam steel based on the width of the web plate and the base plate?

For those who prefer to calculate the weight of H-beam steel using the dimensions of the web plate and base plate, the following formula can be employed:

Weight (kg/m) = 0.00785 × (2.5 × a × t1 + (b – 2 × t1) × t2)


  • ‘a’ is the width of the web plate in millimeters (mm)
  • ‘b’ is the width of the base plate in millimeters (mm)
  • ‘t1’ is the thickness of the web plate in millimeters (mm)
  • ‘t2’ is the thickness of the base plate in millimeters (mm)

This formula takes into account the height and width of the web plate, as well as the width and thickness of the base plate. By inputting these parameters, the formula calculates the weight of the H-beam steel per meter length.

The constant 0.00785 in the formula represents the density of steel in kg/cm³, which is used to convert the volume of the H-beam (calculated using the plate dimensions) into its corresponding weight.

This alternative method provides a convenient way to determine the weight of H-beam steel when the dimensions of the web and base plates are readily available, offering an additional tool for engineers and manufacturers to accurately estimate the material requirements for their projects.

H Beam Sizes and Weight Chart

H-steel is categorized into fourmain types based on the widthof the flange:

  1. WideFlange H-steel (HW)
  2. MediumFlange H-steel (HM)
  3. Narrow Flange H-steel (HN)
  4. Thin-wall H-steel (HT)

The cross-sectional diagrambelow illustrates the keydimensions and symbols used to describeH-steel:

H Beam Sizes and Weight Chart | MachineMFG (1)

Key dimensions:

  • H: Heightof the web
  • B: Width of theflange
  • t1: Thicknessof the web
  • t2: Thickness ofthe flange
  • r: Radius of thefillet
  • cx: Locationof the centroid

These dimensionsare crucial fordetermining thesize and weightof H-beam steel. The followingtable providesa comprehensivelist of standard H-beam sizesand their correspondingweights for eachtype of H-steel.

HW Wide flange100×10010010068816.9
HW Wide flange125×1251251256.59823.6
HW Wide flange150×150150150710831.1
HW Wide flange175×1751751757.5111340.4
HW Wide flange200×2002002008121349.9
HW Wide flange200×20020020412121356.2
HW Wide flange250×25024425211111363.8
HW Wide flange250×2502502509141371.8
HW Wide flange250×25025025514141381.6
HW Wide flange300×30029430212121383.5
HW Wide flange300×30030030010151393
HW Wide flange300×300300305151513104.8
HW Wide flange350×350338351131313104.6
HW Wide flange350×350344348101613113
HW Wide flange350×350344354161613129.3
HW Wide flange350×350350350121913134.9
HW Wide flange350×350350357191913154.2
HW Wide flange400×400388402151522140.1
HW Wide flange400×400394398111822146.6
HW Wide flange400×400394405181822168.3
HW Wide flange400×400400400132122171.7
HW Wide flange400×400400408212122196.8
HW Wide flange400×400414405182822231.9
HW Wide flange400×400428407203522283.1
HW Wide flange400×400458417305022414.9
HW Wide flange400×400498432457022604.5
HW Wide flange500×500492465152022202.5
HW Wide flange500×500502465152522239
HW Wide flange500×500502470202522258.7
HM Middle flange150×10014810069820.7
HM Middle flange200×15019415069829.9
HM Middle flange250×1752441757111343.6
HM Middle flange300×2002942008121355.8
HM Middle flange350×2503402509141378.1
HM Middle flange400×300390300101613104.6
HM Middle flange450×300440300111813120.8
HM Middle flange500×300482300111513110.8
HM Middle flange500×300488300111813124.9
HM Middle flange550×300544300111513116.2
HM Middle flange550×300550300111813130.3
HM Middle flange600×300582300121713132.8
HM Middle flange600×300588300122013147
HM Middle flange600×300594302142313170.4
HN Narrow flange100×50100505789.3
HN Narrow flange125×601256068813.1
HN Narrow flange150×751507557814
HN Narrow flange175×901759058818
HN Narrow flange200×100198994.57817.8
HN Narrow flange200×1002001005.58820.9
HN Narrow flange250×12524812458825.1
HN Narrow flange250×12525012569829
HN Narrow flange300×1502981495.581332
HN Narrow flange300×1503001506.591336.7
HN Narrow flange350×175346174691341.2
HN Narrow flange350×1753501757111349.4
HN Narrow flange400×1504001508131355.2
HN Narrow flange400×2003961997111356.1
HN Narrow flange400×2004002008131365.4
HN Narrow flange450×2004461998121365.1
HN Narrow flange450×2004502009141374.9
HN Narrow flange500×2004961999141377.9
HN Narrow flange500×20050020010161388.1
HN Narrow flange500×200506201111913101.5
HN Narrow flange550×2005461999141381.5
HN Narrow flange550×20055020010161392
HN Narrow flange600×20059619910151392.4
HN Narrow flange600×200600200111713103.4
HN Narrow flange600×200606201122013117.6
HN Narrow flange650×300646299101513119.9
HN Narrow flange650×300650300111713134.4
HN Narrow flange650×300656301122013153.7
HN Narrow flange700×300692300132018162.9
HN Narrow flange700×300700300132418181.8
HN Narrow flange750×300734299121618143.4
HN Narrow flange750×300742300132018168
HN Narrow flange750×300750300132418186.9
HN Narrow flange750×300758303162818223.6
HN Narrow flange800×300792300142218188
HN Narrow flange800×300800300142618206.8
HN Narrow flange850×300834298141918178.6
HN Narrow flange850×300842299152318203.9
HN Narrow flange850×300850300162718229.3
HN Narrow flange850×300858301173118254.9
HN Narrow flange900×300890299152318209.5
HN Narrow flange900×300900300162818240.1
HN Narrow flange900×300912302183418282.6
HN Narrow flange1000×300970297162118216.7
HN Narrow flange1000×300980298172618247.7
HN Narrow flange1000×300990298173118271.1
HN Narrow flange1000×3001000300193618310.2
HN Narrow flange1000×3001008302214018344.8
HT Thin-wall100×5095483.24.586
HT Thin-wall100×50974945.587.4
HT Thin-wall100×10096994.56812.7
HT Thin-wall125×60118583.24.587.3
HT Thin-wall125×601205945.588.9
HT Thin-wall125×1251191234.56815.8
HT Thin-wall150×75145733.24.589
HT Thin-wall150×751477445.5811.1
HT Thin-wall150×100139973.24.5810.5
HT Thin-wall150×100142994.56814.3
HT Thin-wall150×1501441484.56821.8
HT Thin-wall150×15014714957826.4
HT Thin-wall175×90168883.24.5810.6
HT Thin-wall175×901718946813.8
HT Thin-wall175×175167173571326.2
HT Thin-wall175×1751721756.59.51335
HT Thin-wall200×100193983.24.5812
HT Thin-wall200×1001969946815.5
HT Thin-wall200×1501881494.56820.7
HT Thin-wall200×200192198681334.3
HT Thin-wall250×1252381734.56820.3
HT Thin-wall250×1752381734.581330.7
HT Thin-wall300×1502941484.561325
HT Thin-wall300×200286198681338.7
HT Thin-wall350×1753401734.561329
HT Thin-wall400×150390148681337.3
HT Thin-wall400×200390198681343.6
HL Light-weight80×40774033.554.01
HL Light-weight100×5097502.33.264.39
HL Light-weight100×50975033.565.11
HL Light-weight100×50100503.24.586.06
HL Light-weight100×100971004.56812.85
HL Light-weight120×60117603.24.587.38
HL Light-weight120×60120604.5689.9
HL Light-weight120×1201171203.24.5811.62
HL Light-weight120×1201201204.56815.55
HL Light-weight140×70137703.24.588.59
HL Light-weight140×70140704.56811.55
HL Light-weight150×75147753.24.589.2
HL Light-weight150×75150754.56812.37
HL Light-weight150×1001471003.24.5810.96
HL Light-weight150×1001501004.56814.73
HL Light-weight150×15014714968.51327.15
HL Light-weight175×90172904.56.51015.5
HL Light-weight175×1751721756.59.51335.05
HL Light-weight200×100196994.561316.96
HL Light-weight200×15019114957.51626.18
HL Light-weight200×200197199710.51644.2
HL Light-weight250×1252461244.571322.96
HL Light-weight250×17524117569.51638.28
HL Light-weight300×1502961484.571627.95
HL Light-weight300×200291199710.52050.34
HL Light-weight350×1753431745.57.51636.37
HL Light-weight400×1503961497111648.01
HL Light-weight400×20039319969.51649.02

  • Download H Beam Size Chart in PDF

By referringto this table, engineers and contractorscan easily selectthe appropriateH-beam size fortheir specificproject requirements, ensuring optimalstrength, stability, and cost-effectiveness.

CommonH-Beam Specificationsby Flange Width

H-beams are further classified based on their flange width, with each category having its own set of commonly used specifications:

1. Wide Flange H-Beams (HW)

Wide flange H-beams are typically denoted by the product of their web height and flange width. Common models include:

  • 100×100
  • 125×125
  • 150×150
  • 175×175
  • 250×250
  • 300×300
  • 350×350

The notation for wide flange H-beams follows the format: web height (H) × flange width (B) × web thickness (t1) × flange thickness (t2). A key characteristic of wide flange H-beams is that the height and width dimensions are often identical.

2. Medium Flange H-Beams (HM)

Medium flange H-beams are also represented by the product of their web height and flange width. Frequently used models include:

  • 150×100
  • 200×150
  • 250×175
  • 300×200
  • 350×250
  • 400×300
  • 450×300
  • 500×300

The notation for medium flange H-beams is similar to wide flange H-beams: web height (H) × flange width (B) × web thickness (t1) × flange thickness (t2). In medium flange H-beams, the height dimension is typically slightly larger than the width dimension.

3. Narrow Flange H-Beams (HN)

Narrow flange H-beams are denoted by the product of their web height and flange width. Standard models include:

  • 100×50
  • 125×60
  • 150×75
  • 175×90
  • 200×100
  • 250×125
  • 300×150
  • 350×175
  • 400×200
  • 500×200

The notation for narrow flange H-beams follows the same format as wide and medium flange H-beams: web height (H) × flange width (B) × web thickness (t1) × flange thickness (t2). Narrow flange H-beams are characterized by a higher height-to-width ratio compared to the other categories.

Understanding these common specifications and notation methods for each category of H-beam helps engineers, architects, and contractors select the most suitable H-beam for their specific project requirements, ensuring optimal structural performance and cost-efficiency.

Related reading:

  • H Beam Weight Calculator
  • I Beam Weight Calculator

What is an H-Beam?

H Beam Sizes and Weight Chart | MachineMFG (2)

H-beam steel is a highly efficient and cost-effective structural profile that offers an optimal distribution of sectional area and an excellent strength-to-weight ratio. Its cross-section resembles the letter “H,” hence its name.The components of an H-beam are arranged at right angles, providing strong resistance to bending forces. This characteristic makes the construction process simple, cost-effective, and results in lightweight structural strength in all directions. Due to these advantages, H-beam steel is widely used in various construction applications.H-beam steel is also known by other names, such as:

  • Universal beam
  • Wide flange I-beam
  • Parallel flange I-beam

The cross-section of an H-beam comprises a web plate and two flange plates, which contribute to its unique properties and performance.

International H-Beam Standards

Globally, H-beam product standards are divided into two main categories:

  1. Imperial system: Used in countries like the United States and the United Kingdom
  2. Metric system: Used in countries like China, Japan, Germany, and Russia

Despite the differences in measurement units between the imperial and metric systems, H-beams are generally characterized by four key dimensions:

  • Height of the web (h)
  • Width of the flange (b)
  • Thickness of the web (d)
  • Thickness of the flange (t)

Although the method of specifying the dimensions of H-beams may vary across different countries and regions, the actual size specifications and tolerances of the manufactured products remain largely consistent worldwide.

Related Resources

For more information on H-beams and related topics, consider exploring the following resources:

  • H-Beam Weight Calculator
  • I-Beam Weight Calculator

These tools can help you quickly determine the weight of H-beams and I-beams based on their specific dimensions, making it easier to plan and execute your construction projects efficiently.

H Beam Sizes and Weight Chart | MachineMFG (2024)


How to read H-beam sizes? ›

H-Pile Beam Sizing

The number associated with the pile (i.e. HP14) indicates that the flanges are 14 inches long. The second number (i.e. HP14x73) indicates the weight per foot of the beam.

How much weight can an H-beam carry? ›

Based upon 14 lineal feet of beam that is laterally supported the allowable uniform load in kips is 29. A kip is 1000 pounds. So, the allowable uniform load is 29,000 pounds over this laterally supported beam. The vertical deflection with this load is roughly 0.84 inches.

How to calculate weight for beam? ›

Straight beams:
  1. Standard weight: We calculate the standard weight as follows: G = L * mweight, ...
  2. Exact weight: The exact weight is calculated as follows: Gx = V * wpm, where. ...
  3. Exact weight: The exact weight for curved beams is computed as follows: Gx = G0 – Vf * wpm, where.

What size steel beam for 12 foot span? ›

You can use a W6x16 (50 ksi) steel beam for your 12' span. The beam is 4” wide and 6.25” deep. It weighs 16 pounds per foot of beam length. You will need to have a local engineer detail your connections, size your support columns and determine foundation requirements.

How to identify I-beam size? ›

In Canada and the United States, steel I-beams are commonly specified using the depth (in inches) and weight of the beam (in pounds per foot). For example, a “4 x 13” I-beam is approximately 4 inches in depth (the measurement taken from the outer face of the first flange, to the outer face of the opposite flange).

Which is stronger H-beam or I-beam? ›

H-beam: An H-beam has a thicker center web, which means it is often stronger. I-beam: An I-beam often has a thinner center web, which means it is often not able to take as much force as an h-beam.

How to read wide flange beam sizes? ›

Wide flange beams are designated by the letter W followed by the nminal depth in inches and the weight in pounds per foot. Thus W12 × 19 designates a wide flange beam with a depth of 12 inches and a nominal weight of 19 pounds per foot.

What size beam to use for a 20 ft span? ›

According to the LVL User's Guide, a 20-foot span with a 50-pound live load requires an LVL beam with a depth of at least 12 inches. The specific LVL beam that you need will depend on the grade of the LVL, but a common option is a 2x12 grade 300 LVL.

What is the formula for calculating the size of a beam? ›

To calculate the beam size, first calculate the maximum bending moment using the formula M = wL^2 / 8, where w is the load in pounds and L is the span in feet. Then, calculate the required beam height (h) using the formula h = (6 * M)^(1/3).

How far can a 2x10 beam span without support? ›

The most common lumber sizes for floor joists are 2x6, 2x8, 2x10, and 2x12. Larger joists can span across wider areas. For example, a 2x6 joist would have a 12-foot, 6-inch maximum span, and a 2x10 joist would have a 21-foot maximum span.

How do you calculate H-beam size? ›

Raise the length of each of the H-beam's flanges to the power of 3. For example, if each flange is 6 inches long: 6^3 = 216 in^3. Multiply this answer by the width of a flange. For example, if each flange is 2 inches thick: 216 × 2 = 512 in^4.

How to calculate I-beam load capacity? ›

But in short, LRFD method will calculate the capacity by dividing the maximum allowable stress by a resistance factor, which takes into account the uncertainties in load and material strength. This approach generally provides a more conservative estimate of the beam capacity.

What size I-beam for a 30 foot span? ›

For a single 30' beam, you can plan for a W12x40 (it's 12" deep x 8" wide and weighs 40 pounds per foot). If you add the two posts, you can plan for a W4x13 (it's 4" deep x 4" wide and weighs 13 pounds per foot). Steel should be ASTM A992 Gr. 50.

How to calculate the size of steel beam required? ›

First, we look at the steel beam span length. This is the distance from the centre of one end bearing to the other. After looking at the size, depth and weight, we'll look at how weight is distributed. To calculate your steel beam correctly, we'll need to know what type of load your beam is expected to support.

How do you calculate beam capacity? ›

It is calculated by multiplying the applied force by the perpendicular distance from the point of application to the fixed end of the beam.

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