Title: Lay out the common, 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 among common, valley, hip, and jack/cripple rafters? In what situations should each be used?
- Which set of plans identifies information about rafter layout?

NCCER Carpentry Standards

Level One, Module Seven (27112-13): Ceiling and Roof Framing

Module Seven (27112-13) provides an overview of ceiling and roof framing, including the components of ceiling and roof framing, the different types of roofs used in residential construction, and the use of trusses in basic roof framing. The methods for laying out rafters, erecting a gable roof, framing a basic gable end wall, and installing roof sheathing are introduced. It also provides instruction on how to estimate the amount of materials needed for a material takeoff for a roof.