Using The Deflection Calculator

Beam Deflection

To begin, choose a profile type and part number. From there input a length and the expected profile load. When you click "Calculate Deflection" the tool will provide several engineering specifications such as the moment of inertia and yield strength to determine the deflection. You also have options depending on the expected configuration of your solution: whether there will be one fixed end, two fixed ends or the load will be supported on both ends.

Note that as you make adjustments to the part number or profile series, length or load, simply click the “Calculate Deflection” to view updated information. Print your results for comparison or to save the information.

Fractional Metric RT Series Quick Frame Created Beams
in mm
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lbs kg
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  • Deflection (Fixed One End)
  • Deflection (Fixed Two Ends)
  • Deflection (Supported Two Ends)
Fixed One End Evenly
Fixed One End
Fixed One End Variable
*Move the arrow above to vary the load
X View Y View
Deflection X Deflection Y
Deflection X Deflection Y
Length From Left Length From Right
Deflection X Deflection Y
Fixed Two Ends Evenly
Fixed Two Ends
Fixed Two Ends Variable
*Move the arrow above to vary the load
X View Y View
Deflection X Deflection Y
Deflection X Deflection Y
Length From Left Length From Right
Deflection X Deflection Y
Supported Two Ends Evenly
Supported Two Ends
Supported Two Ends Variable
*Move the slider above to vary the load
X View Y View
Deflection X Deflection Y
Deflection X Deflection Y
Length From Left Length From Right
Deflection X Deflection Y