POCKET REFERENCE GUIDE — 33
Irregular Hip/Valley
You’re working with a 7/12 Pitch and half
of your overall Span is 15 Feet 7 Inches.
The Irregular Pitch is 8/12. Find the
Common rafter length, Irregular Hip/Valley
and Jack rafter lengths.
KEYSTROKE DISPLAY
o o 0.
1. Find Common Rafter Length:
7 i p PTCH 7 INCH
1 5 f 7 i R
RUN 15 FEET 7 INCH
d DIAG 18 FEET 0-1/2 INCH
2. Find Irregular Hip Rafter Length:
8 i Ç H IPCH 8 INCH
H IH/V 22 FEET 7-3/8 INCH
3. Find Irregular Jack Lengths:
Ç j IJOC 16 INCH
j* IJ1 14 FEET 11-13/16 INCH
j IJ2 13 FEET 7 INCH
j IJ3 12 FEET 2-3/16 INCH
j IJ4 10 FEET 9-3/8 INCH
j IJ5 9 FEET 4-1/2 INCH
Etc... Continue pressing
j
until last regular
Jack or “0.” is reached.
* It is not necessary to keep pressing
Ç
when
displaying the Irregular Jack sizes.
STORED
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