Title: (Optional) Lay out valley, hip, and jack/cripple rafters.
Course: Carpentry II (17003-II) > Section: Framing a Roof

Laying out should include

- interpreting the rafter layout from blueprints
- computing the rafter length
- allowing for a specified pitch and birdsmouth, as required for cutting.

Process/Skill Questions:

- What are the differences between common, valley, hip, and jack/cripple rafters? When should each be used?

NCCER Carpentry
General Carpentry, Module 27112 Roof Framing describes the most common roof types and introduces basic roof framing components. Includes instructions for laying out rafters for gable roofs, hip roofs, and valley intersections. Covers stick-built and truss-built roofs, and includes the basics of roof sheathing installation.