Hip/Valley Rafters (Irregular) - Calculated Industries Construction Master III User Manual

"Bastard" Hip & Valley Rafters
— (Irregular Non-45 Degree)
You're working with a 7-in-12 Pitch and half
your overall span is 15 feet 7 inches. The Pitch of
the irregular side is 8-in-12: (A) Find the point-
to-point length for the common rafter and (B)
Find the length of the adjoining "irregular" hip
(or valley).
Common
COMMENTS
Clear calculator
Step 1 — Find Common Rafter Length
Enter Run of common
rafter
Enter roof Pitch
Find common rafter
Step 2 — Find Irregular Hip Rafter Length
Enter "Irreg." Pitch*
* As noted previously, while entering 8 [Inch] [Hip/V] is the
same as entering [.] 667 [Hip/V], entering 8 [Hip/V] without
dimensions will give you the equivalent of 96 inches of
Pitch, and you should therefore use caution when using non-
dimensioned Pitch values.
Common
KEYSTROKES
[On/C] [On/C]
15 [Feet]
7 [Inch] [Run]
7 [Inch] [Pitch]
[Diag]
Answer: 18 FT 0-31/64 IN
8 [Inch] [Hip/V]
Answer: 22 FT 7-3/8 IN
15' 7"
User's Guide — 43