Title: Lay out a truss installation.
Course: Carpentry III (17003-III) > Section: Installing Trusses

Layout should include

- identifying the truss detail from the plans
- identifying the nail pattern
- determining the position of the centers, accurate to within +/- 1/16 inch (e.g., 12-inch, 16-inch, 19.2-inch, 24-inch centers).

Process/Skill Questions:

- What is the most common spacing of trusses? Why?
- What factors influence the spacing of trusses?

NCCER Carpentry Standards

Level Two, Module Five (27202-13): Roofing Applications

Module Five (27202-13) describes how to properly prepare the roof deck and install roofing for residential and commercial buildings.