User Manual

U SER ’ S G UIDE — 5
BOARD FEET – LUMBER ESTIMATION .....................................46
Total Board Feet – With Dollar Cost ..........................................46
Number of Board Feet Based on Entered Volume....................46
CIRCLE AND ARC CALCULATIONS............................................47
Circumference and Area of a Circle...........................................47
Arc Length – Degree and Diameter Known ...............................47
Arc Length – Degree and Radius Known ..................................47
Arc Calculations – Arc Length and Diameter Known ................48
Arched/Circular Rake-Walls – Chord Length and Segment Rise
Known .....................................................................................49
Arched Windows........................................................................50
COMPOUND MITER.....................................................................51
Compound Miter Cuts................................................................51
CONCRETE/PAVING ....................................................................52
Volume of Concrete for a Driveway...........................................52
Concrete Columns .....................................................................53
Complex Concrete Volume ........................................................54
Polygon, Finding Angles Based on Entered Radius and
Number of Sides.....................................................................55
Concrete Footings (NOT AVAILABLE ON TRIG MODEL #4080) ...........56
Squaring-up a Foundation .........................................................57
DRYWALL (NOT AVAILABLE ON TRIG MODEL #4080)...........................58
Number of Drywall Sheets for a Given Area..............................58
Number of Drywall Sheets for a Given Length..........................58
GRADE/SLOPE.............................................................................59
Back-Fill on a Slope – Percent of Grade Known .......................59
RIGHT TRIANGLE AND ROOF FRAMING EXAMPLES ..............60
Roof Framing Definitions ...........................................................61
Degree of Pitch ..........................................................................63
Percent Grade............................................................................63
Pitch Ratio or Slope...................................................................63
Common Rafter Length..............................................................64
Common Rafter Length – Pitch Unknown .................................64
Angle and Diagonal (Hypotenuse).............................................65
Rise............................................................................................65
Rise and Diagonal......................................................................65
Sheathing Cut ............................................................................66
Regular Hip/Valley and Jack Rafters ........................................66
Jack Rafters – Using Other Than 16 Inch On-Center
Spacing ..................................................................................67
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