Column Strength Calculator

column The allowable column compression is determined by the formula

P = Fc * Cp * A

P = The allowable column axial compression load
Fc = Allowable compression parallel to grain
Cp = Column stability factor
A = Area of column cross section

You may have to work the problem from each face, inputting "d"
for each side depending on lateral bracing or lack thereof.

L Unbraced Column Length (inches)
d Depth of Column (inches)
d2 Width of Other Column Face
Fc Allowable Compression Parallel to Grain (psi)
E Modulus of Elasticity (million psi)
R Load on Column (lbs)
CompressionLength / Depth Ratio AreaPSI
Column Load Entered Length Depth Ratio Entered Area Entered PSI Entered
Max Column Load Max L/d Ratio Area Required Max PSI
Column Load Pass/Fail Length Depth Ratio Pass/Fail Area Pass/Fail PSI Pass/Fail
Wood under this column must have a Fc perpendicular to the grain greater than PSI
Column Stability Factor (Cp) =
FcE Value =
This calculator is intended for educational use only.
The user assumes all responsibility in its use.