Calculated Industries Construction Master 5 - Slope Conversion and Rafter Length

POCKET REFERENCE GUIDE — 30
Converting Slope
Find the Pitch in Inches, Pitch Degrees,
and Percent Grade if the Pitch Ratio/Slope
is 0.625:
KEYSTROKE DISPLAY
o o 0.
• 6 2 5 Ç p SLP 0.625
p PTCH 7-1/2 INCH
p PTCH 32.01°
p %GRD 62.5
Common Rafter Length
Find the Point-to-Point Length of the
Common rafter on a 7/12-Pitched roof with
a Span of 28 Feet:
KEYSTROKE DISPLAY
o o 0.
1. Enter Pitch:
7 i p PTCH 7 INCH
2. Enter half the Span as the Run:
2 8 f ÷ 2 = 14 FEET 0 INCH
R RUN 14 FEET 0 INCH
3. Find the Rise:
r RISE 8 FEET 2 INCH
4. Find the Length of the Common rafter:
d DIAG 16 FEET 2-1/2 INCH