Calculated Industries 4065 User Manual

Also see for 4065 Construction Master Pro v3.0: User guide

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Calculated Industries 4065 User Manual Manual pdf 66 page image

58 — CONSTRUCTION MASTER ®P RO / TRIG / DESKTOPCommon Rafter LengthIf a roof has a 7/12 Pitch and a span of 14 Feet 4 Inches, what isthe point-to-point length of the Common rafter (excluding the over-hang or ridge adjustment)? What are the Plumb and Level cuts?Note: Run is half the Span.KEYSTROKE DISPLAY1. Find diagonal or point-to-point length of the Common rafter:o o 0.7 i p PTCH 7 INCH1 4 f 4 i ÷ 2 = 7 FEET 2 INCHR RUN 7 FEET 2 INCHd DIAG 8 FEET 3-9/16 INCH2. Find Plumb and Level cuts:d PLMB 30.26°d LEVL 59.74°Note: The Common rafter calculation is the "point-to-point" length and does notinclude the overhang or ridge adjustment.Common Rafter Length —Pitch UnknownFind the common rafter length for a roof with a rise of 6 Feet11-1/2 Inches and a run of 14 Feet 6 Inches. Solve for the Pitch inDegrees and in Inches.KEYSTROKE DISPLAYFind Diagonal and Pitch:o o 0.6 f 1 1 i 1 / 2 r RISE 6 FEET 11-1/2 INCH1 4 f 6 i R RUN 14 FEET 6 INCHd DIAG 16 FEET 1 INCHp PTCH 5-3/4 INCHp PTCH 25.64°