b$.$ Determine the maximum allowable span of nominal $-$in$.)$ wall form studs carrying a design load of $27\mathrm{.}1$kPa. Stud spacing is $406mm(16$ in$.)$ center to center. Assume that studs are continuous over three or more spans. Limit deflection to $\frac{1}{360}$ of span length. Based on the maximum allowable span, check for crushing of studs on double in$.)$ wales. Lumber allowable stresses: $Fb=10,000$ kPa;$FV=1300$kPa;$Fc=7000$kPa;$Fc=3000$kPa and $E={10}^7$kPa.

$(6$ marks$)$

Calculation of stud spans: