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Quiz answers: Built-up members

Correct answers are in bold text.

Quiz

1. Which timber members may not be substituted with built-up members?

a. Studs, top plates, joists
b. Jack studs, top plates, bottom plates
c. Joists, top plates, purlins
d. Rafters, jack studs, lintels

2. Built-up members up to three components must be nailed at spacings:

a. more than six times the thickness of the thickest member
b. no more than six times the thickness of the thickest member
c. no more than six times the thickness of the thinnest member
d. more than six times the thickness of the thinnest member.

3. Nails must penetrate at least:

a. half way through the last component member
b. two-thirds of the way through the last component member
c. three-quarters of the way through the last component member
d. all the way through the last component member.

4. Where built-up members consist of more than three components, the first three components are nailed as for up to three component members. Additional layers must be nailed using nails:

a. two times as long and spaced at less than six times the thickness of the component member added
b. six times as long and spaced at less than six times the thickness of the component member added
c. two times as long and spaced at six times the thickness of the component member added.

This information is published by the Ministry of Business, Innovation and Employment’s Chief Executive. It is a general guide only and, if used, does not relieve any person of the obligation to consider any matter to which the information relates according to the circumstances of the particular case. Expert advice may be required in specific circumstances. Where this information relates to assisting people: