Beam Deflection Calculator

Introducing our online Beam Deflection Calculator. This tool quickly and accurately computes the deflection of beams made from materials such as wood, steel, reinforced concrete, aluminum, copper, and glass under various loading and support conditions.

To use the calculator, follow these steps:

1. Select the beam’s cross-sectional shape:
   • Circle;
   • Pipe;
   • I-beam;
   • Channel;
   • Angle;
   • Rectangle;
   • Square;
   • Hollow profile pipe.
2. Select the beam material:
   • Wood;
   • Steel;
   • Reinforced concrete;
   • Aluminum;
   • Copper;
   • Glass.
   Or, you can input your own values for the material’s modulus of elasticity and density.
3. Select the beam’s support conditions:
   • Pin-to-pin;
   • Fixed-to-pin;
   • Fixed-to-fixed;
   • Fixed-to-free end.
4. Select the type of load:
   • Uniformly distributed load;
   • Point load.
5. Specify the beam’s geometric dimensions according to the provided diagrams.
6. Enter the load value.

After entering all the data, the calculator will compute the beam deflection and display the results. You can determine the deflection value and compare it to the allowable limit for the given span length. This assists you in selecting the optimal beam cross-section. To reduce deflection, it is recommended to increase the height of the beam’s cross-section.

By clicking the "More Details" button, you will receive additional information about the beam:

• Cross-sectional area;
• Beam weight;
• Distributed load due to self-weight;
• Moment of inertia of the section.

Please note that the calculation automatically accounts for the beam’s self-weight.

Latest updates:

• Added calculation of maximum allowable beam deflection;
• Implemented point load input;
• Fixed graphical errors in the display of channel sections;
• Added calculation for T-section;
• Improved display for rectangular sections;
• Added the ability to rotate channel sections;
• Implemented user input for material modulus of elasticity and density;
• Fixed the display of web and flange thickness for channel sections.