Maximum Load Formula:
From: | To: |
The maximum load calculation determines how much weight plywood can safely support based on its bending strength, the area being loaded, and an appropriate safety factor.
The calculator uses the maximum load formula:
Where:
Explanation: The equation calculates the maximum distributed load that can be safely applied to a plywood sheet based on its material properties and dimensions.
Details: Accurate load calculation is crucial for structural safety, preventing material failure, and ensuring proper support for construction projects.
Tips: Enter the safety factor (typically 0.5-0.7), bending strength of the plywood (check manufacturer specs), and the loaded area in square inches. All values must be positive numbers.
Q1: What's a typical bending strength for plywood?
A: Varies by grade - common values range from 3,000 psi (softwood) to 7,000 psi (hardwood) or more for marine-grade plywood.
Q2: How do I determine the safety factor?
A: Depends on application - 0.5 is conservative, 0.7 for light-duty. Consult engineering standards for critical applications.
Q3: Does this account for span between supports?
A: No, this is for distributed load over an area. For span calculations, additional deflection formulas are needed.
Q4: What about different plywood thicknesses?
A: Thickness affects bending strength - use the appropriate strength value for your specific plywood thickness.
Q5: Can this be used for other sheet materials?
A: Yes, with appropriate bending strength values for materials like OSB, MDF, or particle board.