The Roof Framing Calculator V 4.75
By Joseph Fusco
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How to use this calculator.
New UPDATES Release Notes:
 0" is the equivalent of choosing 16th's or Inches in any field.
If you have any comments, suggestion or you find any "bugs" feel free to post them here.
Roof Type: (Hip, Gable Octagon or Split Pitch)
Enter the building length:
Enter the building width (Span (s)):
Enter the roof slope (Main) (Unit Rise): Default 6" Pitch
Enter Common Rafter Thickness: Default = 1-1/2"
Enter Ridge Thickness:Default = 1-1/2"

Ridge Depth: Default = 2"x 12"
Enter Hip/Val Thickness: Default = 1-1/2"
Enter Overhang: Default 12"

Sub Fascia Thickness: Default = 1-1/2"
Sub Fascia Depth: Default = 2"x 6"
Fascia Thickness: Default 3/4"
Fascia Depth: Default = 1"x 6"
Building Finishes Total: Default 0"
Enter Layout spacing: ie, 16", 19.2", 24" Default = 16"
Enter Layout Style: ie, Front-back, Centers, Kings
Enter Hip/Val Member size: ie 2x10 , 2x12 Default = 2"x 10"
Common Rafter Member Size: ie 2x10 , 2x12 Default = 2"x 8"
Rafter Plate size: (width) Default = 2"x 4"
Hip Cheek Cut Type: (Single or Double) Default "Double"
H.A.P. Type (Birdsmouth) (Standard 2/3rd or Full Bearing)
Tail Cut Options (Plumb or Square) Default = Plumb
General & Common Information
Selected Roof Type: Building Foot Print: (Square Feet)
Ridge Length: Actual Building Run:
Ridge Height: unadjusted Building Effective Run:
Ridge Height Pitch Adjustment:[~] Building Plumb Line:
Ridge Height: adjusted for pitch Number of Common Rafters:
Ridge Height: adjusted for H.A.P. Common Plumb Cut Angle:
H.A.P. Cut: Common Seat Cut Angle:
Overhang Projection: Common Unit Length:
    Common Rafter Length: Actual
    Total Common Length:
Hip/Valley Rafter Information
Cheek Cut Type:
Hip Plumb Cut Angle: Hip Drop:
Hip (Level) Seat Cut Angle: Hip Backing Angle:
Hip Unit Length: First Jack Locater on Hip:
Hip Inch Rise: Hip Jack-Rafter offset:
Hip/Valley Length: Actual Plywood Sheathing Angle:
Hip/Val Overhang Projection: Plywood Bevel Cut Angle:
Total Hip/Val Length:    
 
Jack & Hip/Valley Rafter Side Cuts
Jack Rafter Side Cut Angle: Square Stop 12 &:
Hip/Val Side Cut Angle (Dropped): Square Stop 12 &:
Hip/Val Side Cut Angle if beveled Hip: Square Stop 12 &:
     
Square Cut Tail Information
Square Tail Cut?
Fascia & Hip Bevel
(Saw bevel)		 Hip Miter Angle
(layout wide face)

Fascia Miter Angle
(layout wide face)

 Fascia & Hip Miter Angle
(layout top edge)		 Hip Counter
(Length, )		 Hip Counter
(Angle)
Mn.
To reproduce the ~angles for each cut use the 12" location on the tongue and the inch value below on the body.
12" &
Jack Rafter Information
 
Number of Jack-Rafters: The Multiplier:
Jack-Rafter Common Difference: The Offset:
Jack-Prime # 1: Actual Jack-Rafter # 13:Actual
Jack-Rafter # 2:Actual Jack-Rafter # 14:Actual
Jack-Rafter # 3:Actual Jack-Rafter # 15:Actual
Jack-Rafter # 4:Actual Jack-Rafter # 16:Actual
Jack-Rafter # 5:Actual Jack-Rafter # 17:Actual
Jack-Rafter # 6:Actual Jack-Rafter # 18:Actual
Jack-Rafter # 7:Actual Jack-Rafter # 19:Actual
Jack-Rafter # 8:Actual Jack-Rafter # 20:Actual
Jack-Rafter # 9:Actual Jack-Rafter # 21:Actual
Jack-Rafter # 10:Actual Jack-Rafter # 22:Actual
Jack-Rafter # 11:Actual Jack-Rafter # 23:Actual
Jack-Rafter # 12:Actual Jack-Rafter # 24:Actual
       
       
       
       
       
       
       
       
       
       
       
       

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