STAIRCASE MEASURMENTS..............................................................................24
Notes on Changing Stored Stair Variables...........................................................................................24
Stair Calculations - Using Total Rise (Or “Floor-To-Floor” Height)......................................................25
Stair Calculations - Using Total Run....................................................................................................26
Stair Calculations - Using Rise and Run.............................................................................................27
Stair Calculations - “Riser Limited” Function.......................................................................................28
BALUSTERS..........................................................................................29
Exact Spacing Between Balusters - Given Approximate Desired Spacing.........................................29
RIGHT ANGLE CALCULATIONS............................................................................30
Degrees of Pitch...................................................................................................................................30
Percent Grade.......................................................................................................................................30
Pitch Ratio or Slope..............................................................................................................................30
Angle and Diagonal (Hypoteneuse).......................................................................................................31
Rise................................................................................................................................31
Rise and Diagonal................................................................................................................................31
BACK-FILL CALCULATIONS................................................................................32
Calculating Back-Fill For a Slope.........................................................................................................32
ROOFING CALCULATIONS.................................................................................33
Roof Framing Denitions......................................................................................................................33
Common Rafter Length........................................................................................................................35
Sheathing Cut.......................................................................................................................................36
Regular Hip/Valley and Jack Rafters....................................................................................................36
Jack Rafters - Custom On-center Spacing.............................................................................................37
Irregular Hip/Valley and Jack Rafters...................................................................................................38
RAKE-WALLS..........................................................................................41
Rake-Wall: Find Stud Lengths & Angle of Incline..................................................................................41
Rake-Wall (No Base): Find Stud Lengths & Angle of Incline............................................................... 42
ROOFING MATERIALS......................................................................................43
Roof Covering - Working with Known Pitch and Floor Area.............................................................43
Roof Covering - Working with Rise / Run if Pitch Unkown................................................................44
DEGREES, MINUTES, SECONDS CONVERSIONS & TIME CALCULATIONS.........................45
How to Convert Between D:M:S Format and Decimal Degrees..........................................................45
Time Calculations - Add or Subtract Time.............................................................................................45
APPENDICES............................................................................................46
Default Stored Values...........................................................................................................................46
Preference Settings...............................................................................................................................46
Battery Information................................................................................................................................48
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