Wood trusses

Question 1

What is the maximum allowable lateral deflection for truss handling?

Answer 1

6” in 20 feet

Question 2

A 30 foot truss shall not be installed with an overall bow of

Answer 2

1 3/4”

Question 3

Trusses resting on a top plate, maximum tolerance

Answer 3

+/- 1/4
(reference Truss 11/12)

Question 4

Maximum out of plumb tolerance for a truss with a 6’ truss rise

Answer 4

1 1/2”

Question 5

When stacking plywood on trusses, stack

Answer 5

over load bearing walls

Question 6

Nail used for nailing cross braces on ____ trusses

Answer 6

2 16d
(reference Truss 9/40)

Question 7

Max spacing of top chord diagonal bracing

Answer 7

Max 20’

Question 8

What is the maximum construction load that can be placed on an unbraced truss?

Answer 8

No load can be stacked on unbraced truss

Question 9

If trusses are to be sawed

Answer 9

consult an engineer

Question 10

Spacing of support blocking for horizontal stacking of ______ wood trusses

Answer 10

8-10 feet

Question 11

Spacing for lateral bracing on the bottom chord of wood trusses

Answer 11

15’ max