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

Layout should include

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

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.