© 2022 Johnson Level & Tool — 5
GETTING STARTED
Irregular Pitch
: Enters Irregular Pitch
used to calculate lengths of the
Irregular Hip/Valley and Jack rafters .
Jack Key
: Calculates Jack rafter lengths on
the Regular-pitched roof side .
Irregular Jack
: Calculates Jack rafter
lengths on the Irregular-pitched
roof side .
Rake-Wall Key
: Finds the stud sizes based
on entered Right Triangle values and the
stored On-Center spacing . If a dimensional
value is entered before pressing
R/Wall
,
that value is considered the base and will be
added to the stud lengths .
Hip/V
R/Wall
Jack
Conv
Conv
Jack