Home Back

Wood Beam Calculation Example

Wood Beam Maximum Moment Formula:

\[ M_{max} = \frac{w L^2}{8} \]

N/m
m

Unit Converter ▲

Unit Converter ▼

From: To:

1. What is the Maximum Moment Formula?

The maximum moment formula \( M_{max} = \frac{w L^2}{8} \) calculates the maximum bending moment in a simply supported wood beam under uniform load. This is a fundamental calculation in structural engineering for beam design and analysis.

2. How Does the Calculator Work?

The calculator uses the maximum moment formula:

\[ M_{max} = \frac{w L^2}{8} \]

Where:

Explanation: The formula calculates the peak bending moment that occurs at the center of a simply supported beam carrying a uniformly distributed load.

3. Importance of Maximum Moment Calculation

Details: Calculating maximum moment is essential for determining the required beam size, checking stress levels, and ensuring structural safety in wood beam design applications.

4. Using the Calculator

Tips: Enter uniform load in N/m and beam length in meters. Both values must be positive numbers greater than zero for valid calculation.

5. Frequently Asked Questions (FAQ)

Q1: What types of beams does this formula apply to?
A: This formula applies specifically to simply supported beams with uniformly distributed loads.

Q2: How does beam material affect the calculation?
A: While the moment calculation is the same, different materials have different allowable stress limits that determine the required beam size.

Q3: What safety factors should be considered?
A: Always apply appropriate safety factors according to building codes and material specifications for structural design.

Q4: Can this be used for other load types?
A: No, this specific formula is only for uniformly distributed loads. Different formulas exist for point loads and other load configurations.

Q5: What units should be used for accurate results?
A: Use consistent SI units - Newtons per meter (N/m) for load and meters (m) for length to get Newton-meters (Nm) for moment.

Wood Beam Calculation Example© - All Rights Reserved 2025