Manual

4 — CONSTRUCTION MASTER
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PRO
CIRCLE CALCULATIONS ..................................................49
Circumference and Area of a Circle...........................................49
Circle Properties — Arc Length and Diameter Known..................49
Arched Windows.....................................................................51
Arc Length — Degree and Diameter Known ...............................52
Arc Length — Degree and Radius Known ..................................52
CONCRETE/PAVING...........................................................53
Volume of Concrete for a Driveway............................................53
Concrete Columns...................................................................54
Complex Concrete Volume.......................................................56
Concrete Footings (not available on Trig Plus III).......................58
Multiple Concrete Footings (not available on Trig Plus III)...........58
Squaring Up a Foundation........................................................59
FLOOR COVERING AREA CALCULATIONS.................60
Carpeting................................................................................60
GRADE/SLOPE.....................................................................61
Back-Fill on a Slope — Percent of Grade Known........................61
RIGHT TRIANGLE AND ROOF FRAMING EXAMPLES63
Roof Framing Definitions .............................................................63
Common Rafter Length............................................................66
Common Rafter Length — Pitch Unknown .................................67
Angle and Diagonal (Hypotenuse).............................................67
Rise.......................................................................................68
Rise and Diagonal...................................................................68
Finding Sheathing Cut .............................................................69
Regular (45°) Hip/Valley and Jack Rafters (not available on LT)...70
Jack Rafters — Using Other Than 16 Inch On-Center Spacing (not
available on LT) ......................................................................72
Irregular (non-45°) Hip/Valley and Jack Rafters — Descending,
with On-Center Spacing Maintained (not available on LT) ..........73
Irregular (non-45°) Hip/Valley and Jack Rafters — Ascending, with
Jacks Mating at Hip/Valley (not available on LT).............75
Rake Wall – No Base..............................................................77
Rake Wall – With Base...........................................................79
ROOFING MATERIALS........................................................80
Roof Covering — Bundles of Roof Shingles (not available
on LT and Trig Plus III)............................................................80