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CALC-1500
Johnson CALC-1500 User Manual
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© 2022 Johnson Le
vel & T
ool — 29
EXAMPLES
REGULAR HIP
/VALLEY AND JACK RAFTERS
A roof’s Pitch is 9/12 and half the total Span is 6 Fee
t. Find
the lengths of the Common, Hip/V
alley and Jack r
afters
(Jack r
afters at 16 Inch On-Center)
KEYSTROKE DISPLA
Y
1. FIND THE COMMON RAFTER LENGTH:
On
/C
On
/C
0
6
Feet
Run
RUN 6 FEET 0 INCH
9
Feet
Pitch
PTCH 9 INCH
Diag
(common)
DIAG 7 FEET 6 INCH
16"
Hip/Valley Rafter
Jack Rafters
Regular Side
(Jack)
Irregular Side
(Ir/Jack)
On-Center Spacing
33
35
Table of Contents
Table of Contents
3
Getting Started
6
Key Definitions/Functions
6
Basic Function Keys
6
Dimension Keys
7
Arc/Circle Keys
8
Right Triangle/Roof Framing Keys
9
Stair Layout Key
11
Stair Settings
12
Miscellaneous Functions
12
Paperless Tape Example
14
Preference Setting
15
Entering Dimensions
16
Linear Dimensions
16
Square and Cubic Dimensions
17
Linear Conversions
17
Square and Cubic Conversions
18
Basic Math Operations
18
Examples
19
Adding and Subtracting Strings of Dimensions
19
Multiplying Dimensions
19
Dividing Dimensions
20
Percent Calculations
20
Square Area
21
Rectangular Area and Volume
21
Entering Square and Cubic and Adding a Waste Allowance
22
Weight Conversions
22
Weight Per Volume
23
Using the Memory
24
Board Feet and Cost
25
Carpentry: Calculating Number of Studs
25
Baluster Spacing
26
Circle Area and Circumference
27
Arc Angle or Degree
27
Concrete Volume for Driveway
28
Concrete Columns
28
Complex Concrete Volume
29
Right Angle/Framing
31
Squaring-Up a Foundation
32
Pitch - Converting Roof Angle
32
Converting Slope
33
Common Rafter Length
33
Regular Hip/Valley and Jack Rafters
34
Irregular Hip/Valley
36
Rake-Wall - with Base
37
Stairs
39
Stairs - Given Rise and Run
39
Stairs - Given Only the Floor-To-Floor Rise
41
Appendix
42
Setting Fractional Resolution
42
Default Settings
43
Auto Shut-Off
43
Accuracy/Errors
44
Battery
45
Replacing the Battery
45
Reset
45
Area and Volume Formulas
46
Area Formulas
46
Volume Formulas
47
4
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Johnson CALC-1500 Specifications
General
Brand
Johnson
Model
CALC-1500
Category
Calculator
Language
English
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