All load-carrying timber members for scaffolding framing should be _____ construction grade lumber.
A) a minimum of 2000 fiber
B) a maximum of 1000 fiber
C) a maximum of 1500 fiber
D) a minimum of 1500 fiber

Question

Quizplus · Accepted Answer

The question states that the timber members should be "construction grade lumber," which is generally categorized as having a minimum fiber bending stress of 1500 psi. Option D correctly states that the load-carrying timber members should be a "minimum of 1500 fiber," meeting the requirements for construction grade lumber.

All Load-Carrying Timber Members for Scaffolding Framing Should Be _____