For this exercise use from exercise $1$: the pressure gand tributary width given and the w

calculated. You are adding columns at the corners of the beams of exercise $2$ as beam supports.

This means that the reactions at the beam supports are the compressive loads applied at the top

of the beam $(P=$ Fay$).$ For these columns you have two different grades of Southern Pine $2$ X $4$ to

choose from No$.2$ grade and No$.1$ grade. The columns are $10$ ft long. Check both alternatives

and choose the one that works better. If any of the two values for $\frac{L}{d}>50,$ add bracing in the

direction of $\frac{L}{d}>50$ at the middle of the column. What is the capacity $($allowable load$)$ that

either alternative has?