# Simply Supported Steel Beam Screening Calculator — Canada

> Check the arithmetic of an idealized simple beam with a specified section and uniformly distributed total load. CAD planning view; stated limitations apply.

Page: https://askcalculators.com/ca/steel-beam/
Definition: https://askcalculators.com/ca/steel-beam/definition.json
JSON Schema: https://askcalculators.com/ca/steel-beam/schema.json
Version: 20.16.0
Maintained by: AskCalculators (software project; not a credentialed reviewer)
Qualified review: pending. Automated checks do not establish professional approval.
Page status: Live
Review status: Pending

## Use
Open the calculator page and enter values. Query-string parameters can restore and bookmark a calculation.
Example: https://askcalculators.com/ca/steel-beam/?unitSystem=metric&span=4&uniformLoad=10&elasticModulus=200&sectionModulus=500&secondMoment=10000&unitRate=0&laborCost=0&deliveryCost=0&otherCost=0&costMultiplier=1&spreadPercent=15&taxRate=0

## Inputs
- unitSystem: Measurement system; type=select; optional; default=metric; values=imperial|metric
- span: Simply supported clear span; type=number; required; default=4; min=0.01; max=1000000000000
- uniformLoad: Specified total uniform load; type=number; required; default=10; min=0; max=1000000000000
- elasticModulus: Material elastic modulus; type=number; required; default=200; min=1; max=1000
- sectionModulus: Section modulus about bending axis; type=number; required; default=500; min=0.001; max=1000000000000
- secondMoment: Second moment of area about bending axis; type=number; required; default=10000; min=0.001; max=1000000000000
- unitRate: Material price per length unit; type=money; required; default=0; min=0; max=1000000000000
- laborCost: Total labor allowance; type=money; required; default=0; min=0; max=1000000000000
- deliveryCost: Delivery allowance; type=money; required; default=0; min=0; max=1000000000000
- otherCost: Other fixed costs; type=money; required; default=0; min=0; max=1000000000000
- costMultiplier: Material/labor multiplier; type=number; required; default=1; min=0.1; max=10
- spreadPercent: Low/high sensitivity around the entered total; type=percent; required; default=15; min=0; max=100
- taxRate: Explicit tax allowance; type=percent; required; default=0; min=0; max=100

## Outputs
- moment: Maximum bending moment; format=number
- reaction: Reaction at each simple support; format=number
- stress: Elastic bending stress; format=number
- deflection: Elastic midspan deflection; format=number
- materialCost: Material cost; format=currency
- laborCost: Labor allowance; format=currency
- deliveryCost: Delivery allowance; format=currency
- otherCost: Other specified costs; format=currency
- tax: Entered tax allowance; format=currency
- low: Low cost scenario; format=currency
- mid: Middle cost scenario; format=currency; primary
- high: High cost scenario; format=currency

## Formula
M = wL²/8; V = wL/2; elastic stress = M/Z; deflection = 5wL⁴/(384EI).

Inputs are converted to canonical units before evaluating this stated formula.

## Rules
- Empty optional inputs are undefined, not zero.
- Hidden conditional inputs are ignored.
- Do not invent missing required inputs.

Notice: Illustrative defaults are not local quotes or verified legal rules. Dated reference components and user-entered assumptions are explicitly distinguished. Professional review is pending.