Use this construction calculation for preliminary quantity, geometry, material, load, or coverage planning when dimensions and units have been measured consistently.

Uniform load (N/m)

Required number input.

Clear span (m)

Required number input.

Young's modulus (Pa)

Required number input.

Second moment of area (m⁴)

Required number input.

Estimate midspan elastic deflection of a prismatic, simply supported beam under uniform load using small-deflection Euler–Bernoulli theory; not a code check. The tool evaluates the supplied inputs together and returns the named outputs below; it does not infer omitted operating conditions or change the units shown.^[1]

Midspan deflection (m)

The resulting midspan deflection returned as a number.

• The structural relationship assumes the stated support, section, material, and load model. Connections, lateral stability, buckling, shear, vibration, fire, durability, load combinations, and code factors require a complete design check.
• Use finite inputs in the displayed units and preserve more precision than the final presentation requires. Independently verify safety-critical, financial, compliance, or production decisions.

Verify dimensions on site, use current product data and local code requirements, include an explicit waste or safety allowance where appropriate, and obtain qualified structural, electrical, plumbing, or geotechnical review when required.

• Uniform Beam Moment

  Find maximum positive bending moment of a simply supported beam carrying a constant uniform load over its full span.

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