A glued$-$laminated $($glulam$)$ timber beam is made from five $40$ mm $\backslash$times $166$ mm $($finish dimensions$)$ boards as shown in the figure below.

The strength of the wood in horizontal shear is $\backslash$tau allow $=727\mathrm{.}9$ kPa $($which considers a factor of safety$).$

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What is the maximum allowable vertical shear force V $($in kN$)$ for the section?