If each common rafter (including tail) of a gable roof is 14 ...

[arivle123]

If each common rafter (including tail) of a gable roof is 14 long, how many 16 pieces of lumber will be needed
  to provide common rafters for a 30-long building with no overhang, constructed on 24 centers?
 
  a. 32
  b. 30
  c. 28
  d. 42

Question 2

To eliminate the need for tongue-and-groove sheathing, connect adjoining panels with _____.
 
  a. Z clips
  b. S clips
  c. H clips
  d. K clips

[Dnite]

Answer to Question 1

a

Answer to Question 2

c

[arivle123]

Excellent

[ecabral0]

Thanks for the timely response, appreciate it