Calculated Industries 4067 User Guide - Manual (Page 7)

C onstruCtion M aster P lus eZ
7
e JaCK raFter C-Ø1
5 Feet 7-5/16 inCh
e JaCK raFter C-Ø2
4 Feet 0-1/16 inCh
e JaCK raFter C-Ø3
2 Feet 4-7/8 inCh
e JaCK raFter C-Ø4
0 Feet 9-5/8 inCh
e CoMMon PLUMB anGL
33.69°
e CoMMon LeVeL anGL
56.31°
e CoMMon CheeK anGL
45.00°
Find the Jack Rafter Lengths and Angles using a 6′ Run, a 4′ Rise and a 10″
Irregular Pitch:
1. Clear Calculator:
OOO
2. Start Jack Rafter function:
j
3. No Common Pitch:
e
4. Enter 6′ Run:
6fe
5. Enter 4′ Rise:
4fe
6. Enter 10" Irregular Pitch:
10ie
7. Accept default On-Center Spacing (16") and solve for Jack Rafters:
e
CoMMon oFFSet Lnth
24-1/16 inCh
e CoMMon raFter Lnth
7 Feet 2-9/16 inCh
e JaCK raFter C-Ø1
5 Feet 2-1/2 inCh
e JaCK raFter C-Ø2 3 Feet 2-7/16 inCh
e JaCK raFter C-Ø3 1 Feet 2-7/16 inCh
e CoMMon PLUMB anGL 33.69°
e CoMMon LeVeL anGL 56.31°
e CoMMon CheeK anGL 51.34°
e irreGULar oFFSet Lnth
16- 11/16 inCh
e irreGULar raFter Lnth
6 Feet 3 inCh
e ir JaCK raFter i-Ø1
4 Feet 10-5/16 inCh
e ir JaCK raFter i-Ø2
3 Feet 5-5/8 inCh
e ir JaCK raFter i-Ø3 2 Feet 1 inCh
e ir JaCK raFter i-Ø4 0 Feet 8-5/16 inCh
e irreGULar PLUMB anGL 39.81°
e irreGULar LeVeL anGL 50.19°
e irreGULar CheeK anGL 38.66 °
Jack rafters – advanced Function
required entries Possible Solutions
Two of the first three required:
• Pitch
• Run (or Span)
• Rise
On-C enter Spacing*
• Default value: 16"
Common and Irregular
• Jack On-center Spacing*
• Offset Length
• Rafter Length
• Jack Rafter Lengths
• Plumb Angle
• Level Angle
• Cheek Angle
optional entries
Irregular Pitch
Horizontal Overhang
Total Fascia Thickness
Common Rafter Thickness**
Hip/Valley Thickness**
Ridge Thickness**
* Default value: 1-1/2"
** On-center Spacing is also a possible solution that displays when both of the following
are true: 1) Common and Irregular Pitches are not equal and 2) Jack Alignment
Preference is set to MATE, rather than ON-CENTER.
** Tail Lengths shown only when Horizontal Overhang is entered.
Find the Jack Rafter Lengths and Angles using an 8" Pitch, a 6′ Run, an 18"
Horizontal Overhang and the default values shown above:
1. Clear Calculator:
Cx
2. Start Advanced Jack Rafter function:
Cj
3. Enter 8" Common Pitch:
8ie
4. Enter 6′ Run:
6fe
5. No Irregular Pitch (Common Pitch used):
e
6. Accept default On-Center Spacing (16"):
e
7. Enter 18" Overhang Run:
18ie
8. No Total Fascia Thickness:
e (Enter 0 if a value is displayed)
9. Accept 1-1/2" default Rafter Thickness:
e
10. Accept 1-1/2" default Hip/Valley Thickness:
e
11. Accept 1-1/2" default Ridge Thickness and solve for Jack Rafters:
e
CoMMon oFFSet Lnth 19-1/4 inCh
19-1/4 inCh
e CoMMon taiL Lnth 21-5/8 inCh
e CoMMon raFter Lnth 8 Feet 11-1/4 inCh
e JaCK raFter C-Ø1 7 Feet 4-1/16 inCh
e JaCK raFter C-Ø2 5 Feet 8-13/16 inCh
e JaCK raFter C-Ø3
4 Feet 1-9/16 inCh
e JaCK raFter C-Ø4
2 Feet 6-3/8 inCh
e JaCK raFter C-Ø5
0 Feet 11-1/8 inCh
e CoMMon PLUMB anGL
33.69°
e CoMMon LeVeL anGL
56.31°
e CoMMon CheeK anGL 45.00°
sTair funCTion
note: Within Preferences, there is a setting for Riser Height that
determines which type of calculation will be used. The default is Target
Riser Height.
•
target riser height: Use this setting to get a stair calculation that will get as
close to the stored Riser Height as possible. The calculated Actual Riser Height
will either be shorter or taller than the Target Riser Height.
• Maximum riser height: This is used when local building codes prohibit risers
greater than this value. The calculated Actual Riser Height will not exceed the
Maximum Riser Height.