Calculated Industries Construction Master III User Manual page 40

Common Rafter
— Pitch Unknown
You're unsure of the roof Pitch but know both
the Rise; 6 feet 11-1/2 inches and Run; 14 feet 6
inches. Find the common rafter length. Then
solve for the Pitch.
COMMENTS
Clear calculator
Enter Rise
Enter Run
Find rafter length
Find Pitch
Computing the Rise Side
of an Angle
Though not commonly asked for, you can
compute the Rise or Run side of a right angle just
as you would the Diagonal. Here, find the Rise
given a 7-in-12 Pitch and a Run of 11 feet 6
inches:
COMMENTS
Clear calculator
Enter Pitch
Enter Run
Find Rise
40 — Construction Master III
KEYSTROKES
[On/C] [On/C]
6 [Feet] 11 [Inch]
1 [/] 2 [Rise]
14 [Feet]
6 [Inch] [Run]
[Diag]
Answer: 16 FT 1 IN
[Pitch]
Answer: 5-49/64 IN
KEYSTROKES
[On/C] [On/C]
7 [Inch] [Pitch]
11 [Feet]
6 [Inch] [Run]
[Rise]
Answer: 6 FT 8-1/2 IN
®