Calculated Industries Construction Master III User Manual download pdf (Page 37)

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

1 2 ... 32 33 34 35 36 37 38 39 40 41 42 ... 51 52

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