User Manual

User's Guide — 39
Hip/Valley & Jack Rafters
Regular (45°) Hip/Valley
& Jack Rafters
You’re working with a 7/12 Pitch, and
half your total span is 13 feet 9 inches:
(A) Find the point-to-point length for the
common rafter; (B) Find the length of
an adjoining hip (or valley); and (C)
Find the lengths of the regular jack raf-
ters (jack rafters at 16” on-center spac-
ing).
Keystroke Display
[On/C] [On/C] 0.
1. Find Common Rafter Length
13 [Feet] 9 [Inch] [Run]
RUN 13 FT 9 IN
7 [Inch] [Pitch] PTCH 7 IN
[Diag] DIAG 15 FT 11 IN
2. Find Hip Rafter Length
[Hip/V] H/V 21 FT 0-7/16 IN
3. Find Jack Rafter Lengths
16 [Inch] [Jack] OC 16 IN
[Jack] JK1 14 FT 4-1/2 IN
[Jack] JK2 12 FT 10 IN
[Jack] JK3 11 FT 3-7/16 IN
Etc......Continue pressing [Jack] until
last Jack is reached or until display
shows “0.”