Timber Design

Question 1

A 2”x4”x1’ lumber is:

a. 2/3 bd.ft.
b. 1 bd.ft.
c. 1.5 bd.ft.
d. 2 bd.ft

Answer 1

a. 2/3 bd.ft.

Question 2

What do you call the type of cut that is parallel to the axis of the tree and radially across the annual rings?

a. flat sawing
b. quarter sawing
c. direct sawing
d. cross sawing

Answer 2

b. quarter sawing

Question 3

What type of defect in lumber is described as the longitudinal cracks following the growth rings? This develops prior to cutting the lumber and sometimes caused by heavy winds.

a. knots
b. cut
c. rot
d. shake

Answer 3

d. shake

Question 4

True/ False : Wood is stronger when load is ┴ to the grains.

a. True
b. False
c. Maybe
d. Not Sure

Answer 4

b. False