Name

$($c$)$ What would you recommend to Improve the durability of wood members in the deck?

$12\mathrm{.}4($a$)$ What minimum nall slze and material would you specify for factoning the handrall in Question $12\mathrm{.}3$ If the nails must penetrate $2$ in$.$ Into guardrail verticals?

$($b$)$ What nail size and material would you specify to build the beam in Question $123?$

$12\mathrm{.}5$ Your partner has recommerded the use of quarter$-$sawn lumber for the decking in Question $12\mathrm{.}3.$ Explain why you agree or disagree.

$12\mathrm{.}6$ If you were to replace the beam in Question $12\mathrm{.}3$ with a glulam beam, would you specify$-$a balanced or an unbalanced beam? Explain.

$12\mathrm{.}7$ The decking $-$ material in Question $123$ conslsts of solld lumber members, which is being increasingly replaced by composite $($synthetic$)$ materials. Using online resources, describe the advantages and disadvantages of composite decking.