C
onstruCtion
M
aster
P
lus
eZ
6
e
CoMMon CheeK anGL
38.66°
e
irreGULar CheeK anGL
51.34°
advanced hip/Valley rafters
required entries
Possible Solutions
Two of the first three required:
• Common Pitch
• Run (or Span)
• Rise
Total Hip/Valley Length
Hip/Valley Tail Length*
Plumb Angle
Level Angle
Common and Irregular
• Cheek Angle
• Backing Angle
• Sheathing Angle
• Plan Angle
optional entries
Irregular Pitch
Horizontal Overhang
Total Fascia Thickness
Ridge Thickness
• Default value: 1-1/2"
* Tail Length shown only when Horizontal Overhang is entered.
advanced Function with Common Pitch
Find Hip/Valley Lengths and Angles using an 8" Common Pitch, a 12′ Run, an
18" Horizontal Overhang and 2-1/4" Total Fascia Thickness:
1. Clear Calculator:
OOO
2. Start Advanced Hip/Valley function:
Ch
3. Enter 8" Common Pitch:
8ie
4. Enter 12′ Run:
12fe
5. No Irregular Pitch (Common Pitch used):
e
6. Enter 18" Overhang*:
18ie
7. Enter 2-1/4" Total Fascia Thickness*:
2i1 / 4e
8. Accept 1-1/2" default value for Ridge Thickness* and solve for Hip/Valley:
e
totaL hiP/VaLLeY Lnth
20 Feet 9-7/8 inCh
e
h/V raFter taiL Lnth
25-7/8 inCh
e
PLUMB anGLe
25.24°
e
LeVeL anGLe
64.76°
e
CoMMon CheeK anGLe
45.00°
e
CoMMon BaCKinG anGL
23.09°
e
CoMMon SheathinG anGL
50.24°
e
CoMMon PLan anGL
45.00°
* If the desired value is already displayed, there′s no need to re-enter it. Just press
e
to accept it. The value you store will remain unchanged until you modify it or reset the
calculator.
Optional Entries only
: If you don′t want to include an optional entry in your calculation,
simply clear it by entering
0e
.
advanced Function with irregular Pitch
Find Hip/Valley Lengths and Angles using an 8 " Common Pitch, a 12′ Run, a
10" Irregular Pitch, an 18" Overhang and 2-1/4" Total Fascia Thickness:
1. Clear Calculator:
OOO
2. Start Advanced Hip/Valley function:
Ch
3. Enter 8" Common Pitch:
8ie
4. Enter 12′ Run:
12fe
5. Enter 10" Irregular Pitch:
10ie
6. Enter 18" Overhang*:
18ie
7. Enter 2-1/4" Total Fascia Thickness*:
2i1 / 4e
8. Accept 1-1/2" Ridge Thickness* and solve for Hip/Valley:
e
totaL hiP/VaLLeY Lnth
19 Feet 2– 9/16 inCh
e
h/V raFter taiL Lnth
23-3/4 inCh
e
PLUMB anGLe
27.50°
e
LeVeL anGLe
62.50°
e
CoMMon CheeK anGL
38.66°
e
irreGULar CheeK anGL
51.34°
e
CoMMon BaCKinG anGL
20.27°
e
irreG BaCKinG anGL
29.99°
e
CoMMon SheathinG anGL
56.35°
e
irreG SheathinG anGL
46.16°
e
CoMMon PLan anGL
51.34°
e
irreGULar PLan anGL
38.66°
* If the desired value is already displayed, there′s no need to re-enter it. Just press
e
to accept it. The value you store will remain unchanged until you modify it or
reset the calculator.
Optional Entries only:
If you don′t want to include an optional entry in your calculation,
simply clear it by entering
0e
.
JaCK rafTer funCTion
Basic Jack rafters
required entries
Possible Solutions
Two of the first three required:
• Common Pitch
• Run (or Span)
• Rise
On-Center 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
*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
.
Find the Jack Rafter Lengths and Angles using an 8" Common Pitch and a
6′ Run:
1. Clear Calculator:
OOO
2. Start Jack Rafter function:
j
3. Enter 8" Common Pitch:
8ie
4. Enter 6′ Run:
6fe
5. No entry for Irregular Pitch (Common Pitch used):
e
6. Accept default On-Center Spacing (16") and solve for Jack Rafters:
e
CoMMon oFFSet Lnth
19-1/4 inCh
e
CoMMon raFter Lnth
7 Feet 2-9/16 inCh
