Calculated-industries 4067 User Guide Manual de usuario Pagina 7

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ConstruCtion Master Plus 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
33.6
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
33.6
e
COMMON LEVEL ANGL
56.31°
e
COMMON CHEEK ANGL
51.3
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 rst 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.
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