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Structural Wood Design Problem 2 - Design a Wood or Timber Column:
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What is the ASD axial load capacity of a solid sawn no. 2 Hem-Fir 6x6 column?
Actual Dimensions are 5.5"x5.5", it has pinned-pinned ends, length is 14 ft.
Moisture condition is 22% and the surroundings are at room temperature.
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1. From the structural wood submenu open the Other North American Species Wood Reference Tables, Wood_Reference_Design_Values.pdf.
Derive all the factors and properties for a sawn no. 2 Hem-Fir 6x6 column.
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![](../Graphics/Problems/Wood/Problem2-1.jpg)
![](../Graphics/Problems/Wood/Problem2-2.jpg)
![](../Graphics/Problems/Wood/Problem2-3.jpg)
![](../Graphics/Problems/Wood/Problem2-4.jpg)
![](../Graphics/Problems/Wood/Problem2-5.jpg)
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2. Next, from the structural wood submenu open the column stability factor calculation, ColumnStabilityCp.aspx.
Input the "Title" of the calculation, the "Designer/Checker" information, enter the variables, click on the "Calculate" button and read the results.
Use Cp = 0.317.
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![](../Graphics/Problems/Wood/Problem2-7.jpg)
![](../Graphics/Problems/Wood/Problem2-8.jpg)
![](../Graphics/Problems/Wood/Problem2-9.jpg)
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3. From the structural wood submenu open the wood compression calculation, WoodCompression.aspx.
Input the "Title" of the calculation, the "Designer/Checker" information, enter the variables, click on the "Calculate" button and read the results.
The ASD axial strength of the column in compression is 11,468.74 lbs.
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![](../Graphics/Problems/Wood/Problem2-10.jpg)
![](../Graphics/Problems/Wood/Problem2-11.jpg)
![](../Graphics/Problems/Wood/Problem2-12.jpg)
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4. Summary
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The ASD axial strength of the column in compression is 11,468.74 lbs.
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