Steel I Beams

Grade/Alloy 44W, 50W
Length Between 20' and 60'
Diameter 3'' and more (see chart page 7)
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FAQ – Everything You Need to Know About Steel I Beams

An I beam is a structural steel member whose cross-section resembles the letter “I.” It features a thinner central web and tapered flanges, making it lighter than other structural beams while still providing excellent resistance to bending.

I beams are designed to efficiently support loads—primarily in bending—while optimizing material usage. They are widely used in construction and manufacturing projects where structural performance and an optimal strength-to-weight ratio are key considerations.

To better understand the characteristics and dimensions of I beams, here are the main terms to know:

  • Height (H): Total vertical distance of the beam, from the bottom to the top of the flanges.
  • Flanges: The horizontal sections at the top and bottom of the beam that resist bending forces.
  • Web: The central vertical section connecting the flanges, primarily designed to resist shear forces.
  • Tapered flanges: Flanges whose thickness decreases toward the edges, reducing the overall weight of the beam.
  • Span: The distance between supports, used to determine the allowable load capacity.
  • Grade / alloy: Type of structural steel used (44W, 50W), which influences mechanical strength.
  • Available lengths: Typically between 20’ and 60’ (6.1 m to 18.3 m).
  • Nominal size: 3” and up (refer to the size chart – page 7 – for exact dimensions).

I beams offer several structural advantages:

  • Thin web: Ensures efficient use of steel while maintaining good rigidity.
  • Tapered flanges: Reduce overall weight, making handling and installation easier.
  • High bending resistance: Ideal for supporting horizontal loads.
  • Material efficiency: Excellent strength-to-weight ratio, making it a cost-effective solution.
  • Versatility: Suitable for a wide range of structural applications.
  • Ease of installation: Lighter weight simplifies transportation and on-site installation.

I beams are commonly used in projects where loads are primarily applied in bending:

  • Commercial and industrial building structures
  • Floor and roof systems
  • Building frames and steel structures
  • Light to medium-duty bridges and infrastructure
  • Horizontal supports for equipment and structures
  • Metal fabrication and engineering projects

They are suitable for both horizontal and certain vertical applications, depending on the load requirements and structural calculations.

Although similar in appearance, I beams and H beams have important differences:

  • I Beam
    • Thinner web
    • Tapered flanges
    • Lighter weight
    • Optimized for bending and long spans
    • More economical solution for many applications
  • H Beam
    • Thicker web
    • Wide flanges with uniform thickness
    • Heavier and more rigid
    • Designed for very heavy loads and column applications

The choice depends on the load, span, and specific application requirements.

Selecting the appropriate I beam depends on several factors:

  1. Load requirements
    • Static and dynamic loads applied to the structure
  2. Span
    • Longer spans may require a larger beam section
  3. Orientation and application
    • Primarily horizontal, but vertical use is possible depending on the project
  4. Material and finish
    • Standard carbon steel or stainless steel, depending on the environment
    • Aluminum I beams are also available
    • Steel grade/alloy (44W, 50W) based on required strength
  5. Dimensions
    • Length: between 20’ and 60’
    • Nominal size: 3” and up

Our specialists are available to help you select the most suitable I beam for your project.

The price of I beams varies based on several factors:

  • Dimensions (height, width, and thickness of the flanges and web)
  • Structural steel grade (44W or 50W)
  • Length and quantity ordered
  • Required cutting or additional processing

Standard sizes are generally the most cost-effective. For an accurate price based on your specific needs, we invite you to request a quote. Our team will respond promptly.

Yes. Acier Groupe David provides delivery of I beams directly to job sites, industrial facilities, or fabrication shops.

Our distribution service covers all of Estrie and Montérégie, including but not limited to:

  • Estrie: Sherbrooke, Thetford Mines, Lac-Mégantic, Windsor, Val-des-Sources, Magog, Stanstead, Valcourt, and surrounding areas
  • Montérégie: Granby, Shefford, Sutton, Cowansville, Farnham, Saint-Jean-sur-Richelieu, Saint-Hyacinthe, Acton Vale, Drummondville, and surrounding areas