Manual

66 — CONSTRUCTION MASTER
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PRO
Common Rafter Length
If a roof has a 7/12 pitch and a span of 14 feet 4 inches, what is the
point-to-point length of the Common rafter (excluding the overhang or
ridge adjustment)? What are the Plumb and Level cuts?
Keystroke Display
1. Find diagonal or point-to-point length of the Common rafter:
[On/C] [On/C] 0.
7 [Inch] [Pitch] PTCH 7 INCH
14 [Feet] 4 [Inch] [÷] 2 [=] 7 FEET 2 INCH
[Run] RUN 7 FEET 2 INCH
[Diag] DIAG 8 FEET 3-9/16 INCH
2. Find Plumb and Level cuts:
[Diag] PLMB 30.26°
[Diag] LEVL 59.74°
14’ 4”
7/12 Pitch