Metric Republic / Engineering Helpers / Simply Supported Beam Reaction Calculator

Simply Supported Beam Reaction Calculator

Preliminary support reactions for a simply supported beam carrying a full-span UDL plus one point load.

How it works

Preliminary support reactions for a simply supported beam carrying a full-span UDL plus one point load.

Core method:
For span L: RA = wL/2 + P(L−a)/L and RB = wL/2 + Pa/L.

Before you use the result: Preliminary calculation only. Verify the result independently against project documents, applicable standards and professional requirements.

Practical use

Enter dimensions from the latest drawings or verified site measurements. Adjust allowances and material properties to the supplier or specification you are actually using. Results update instantly as inputs change.

Keep units consistent with the source information.
Use project-specific densities, pack sizes and coverage rates where provided.
Round purchasing quantities to supplier packaging and delivery rules.

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