➡ ➡ CONSTRUCTION MASTER ® HEAVYCALC PRO ™ ADVANCED FEET-INCH-FRACTION CALCULATOR Model 4325 Pocket Reference Guide f Insert This Direction
HEAVYCALC™ PRO Designed for today’s excavation and heavy construction professional, the all-new HeavyCalc Pro adds even more power to the already powerful Construction Master line-up. Like earlier models, this calculator is so simple to use, even the novice user can easily solve dimension-related problems.
TABLE OF CONTENTS GETTING STARTED ...................................1 KEY DEFINITIONS ..................................1 Basic Function Keys ..............................1 Unit Keys ...............................................2 Length, Width and Height Keys.............3 Construction Project Keys .....................3 Excavation/Volume Keys .......................4 Miscellaneous Functions .......................6 PREFERENCE SETTINGS .....................8 ENTERING DIMENSIONS ....................
Simple Concrete Volume .....................19 Topsoil Volume.....................................20 Complex Concrete Volume..................21 Trench Volume.....................................23 RIGHT TRIANGLE PROBLEMS............24 Squaring-Up a Concrete Slab .............25 Finding Lot Width.................................26 Finding Drop or Fall.............................26 Finding Slope Ratio/Percent Grade.......28 Drop of Sloped Slab ............................29 Drop of Retaining Wall...........
GETTING STARTED KEY DEFINITIONS Basic Function Keys +-x ÷= Arithmetic operation keys. % Four-function (+, –, x, ÷) percent key. 0–9 and • Keys used for entering numbers. O Off Key — Turns all power off, clearing all non-permanent registers. o On/Clear Key — Turns on power. Pressing once clears the display. Pressing twice clears all temporary values. Ç Convert Key — Used with the dimensional keys to convert between dimensions or with other keys to access special functions.
Unit Keys y Yards Key — Enters or converts to Yards. f Feet Key — Enters or converts to Feet as whole or decimal numbers. Also used with the i and / keys for entering Feet-Inch values (e.g., 6 f 9 i 1 / 2). Repeated presses during conversions toggle between Fractional and Decimal Feet. Inch Key — Enters or converts to Inches. Entry can be whole or decimal numbers. Also used with the / key for entering fractional Inch values (e.g., 9 i 1 / 2).
Ç7 Centimeters (cm) — Enters or converts to Centimeters. Millimeters (mm) — Enters or converts to Millimeters. Acres (Acre) — Enters or converts to Acres. Ç9 Ç2 Length, Width and Height Keys l Enters Length for calculation of Area or Volume. W Enters Width and calculates Area, Square-up and perimeter. h Enters Height and calculates Volume, wall Area and total room Area. Calculates Height (Depth) based on entered Width and Slope or Percent Grade.
s Square-Up Key — Calculates the “Square-up” (diagonal) Length given entered Length and Width values. Drop Key — Calculates total drop (or fall) over an entered Length given entered percentage drop, Inch per Foot drop, or degrees of drop. Continued presses will act as a “constant add,” for displaying successive drops. d Excavation/Volume Keys ¬ Loads Key — Calculates number of loads for a given Volume or Length, Width, and Height (Depth) values and stored load size. S¬ Load Size — Stores load size.
e p b ç Çç L ÇL Existing Key — Used to enter or calculate an existing benchmark, Grade or value. Proposed Key — Used to enter or calculate a proposed benchmark, Grade or value. Bank Volume Key — Enters or calculates the Volume for bank fill material. Bank fill is material in an untouched, pristine state. Compacted Volume Key — Enters or calculates the Volume for compacted fill material. Compacted fill is material that has been compacted.
Miscellaneous Functions a Backspace Key. Ça ( ®= Paperless Tape. ÇS Preference Settings. Ç÷ (1/x) Reciprocal — Finds the reciprocal of a number (e.g., 8 Ç ÷ 0.125). Çx Clear All — Returns all stored values to the default settings. (Does not affect Preference Settings.) Ç- (+/–) Toggle. ) Square Root. Ç+ Pi (π) 3.141593. Ç• Converts between D:M:S and decimal degrees. Ç% x 2 — Squares the value in the display. Ç/ Exponential Notation (x10 y).
Ç8 Degrees — Enters or converts to degrees. Ç6 Tons (tons) — Enters or converts to Tons. Ç4 Pounds (lbs) — Enters or converts to Pounds. Ç3 Metric Tons (met tons) — Enters or converts to Metric Tons. Ç1 Kilograms (kg) — Enters or converts to Kilograms. µ Memory +. ǵ (M–) Memory Minus. S1 (M1) Storage Register. S2 (M2) Storage Register. S3 (M3) Storage Register. Ç® Clear M+. ®® Recall and Clear M+. ® µ, 1, Recall M+, M1, M2 or M3.
PREFERENCE SETTINGS Press Ç, then S, then keep pressing S to toggle through the main settings. Press the + key to advance within subsetting. Use the - key to back up. Press o key to exit Preferences. PRESS Ç AND: SETTING--FUNCTION First press of S: + + + + + + Fractional Resolution: --1/16 --1/32 --1/64 --1/2 --1/4 --1/8 --1/16 (repeats options) Second press of S: + + + + Area Displays: --Std. --0. SQ FEET --0. SQ YD --0. SQ M --Std. (repeats options) Third press of S: + + + + Volume Displays: --Std.
Fifth press of S: + + Meter Linear Displays: --0.000 M --FLOAt M (floating point) --0.000 M (repeats options) Sixth press of S: + + Decimal Degree Displays: --0.00º --FLOAt (floating point) --0.00º (repeats options) Seventh press of S: + + Fractional Mode: --Std. --COnSt --Std. (repeats options) Note: Press o at anytime to exit the Preference Settings.
ENTERING DIMENSIONS Linear Dimensions When entering Feet-Inch values, enter dimensions from largest to smallest — Feet before Inches, Inches before Fractions. Enter Fractions by entering the numerator (top number), pressing / (Fraction Bar key) and then the denominator (bottom number). Note: If a denominator is not entered, the fractional setting value is used. Examples of how linear dimensions are entered (press o after each entry): DIMENSION KEYSTROKES 5 Yards 5y 5 Feet 1-1/2 Inch 5 f 1 i 1 / 2 17.
CONVERSIONS Linear Conversions Convert 10 Feet 6 Inches to other dimensions, including Metric: KEYSTROKES 10f6i Ç f* Ç i* Çy Çm Ç 9 (mm) Ç 7 (cm) DISPLAY 10 6 INCH 10.5 FEET 126. INCH 3.5 YD 3.200 M 3200.4 MM 320.04 CM FEET *Repeated presses of f or i will toggle between Feet-Inch-Fractions and Decimal Feet or Inches. Square and Cubic Conversions Convert 14 Square Feet to Square Yards: KEYSTROKES 14ff Çy DISPLAY 14 SQ FEET 1.
Weight Conversions Convert 25 Tons to other Weights: KEYSTROKES 2 5 Ç 6 (tons) Ç 4 (lbs) Ç 1 (kg) Ç 3 (met tons) DISPLAY 25 Ton 50000. LB 22679.62 kG 22.67962 MET Ton Weight per Volume Conversions Your calculator has the capability of converting between Weight and Volume. The Weight/Volume ratio is permanently stored by entering the value and pressing S 0. The default value is 1.5 Tons per Cubic Yard. Find the Weight of 15 Cubic Yards at 1.
BASIC MATH OPERATIONS Your calculator uses standard chaining logic, which simply means that you enter your first value, the operator (+, -, x, ÷), the second value and then the Equals sign (=). A. B. C. D. 3 3 3 3 + x ÷ 2 2 2 2 = = = = 5. 1. 6. 1.5 This feature also makes the calculator simple to use for dimensional applications: Adding and Subtracting Strings of Dimensions Add the following measurements: • 6 Feet 2-1/2 Inches • 11 Feet 5-1/4 Inches • 18.25 Inches Then subtract 2-1/8 Inches.
Dividing Dimensions Divide 30 Feet 4 Inches by 7 Inches: KEYSTROKES DISPLAY 30f4i÷7i= 52. Divide 20 Feet 3 Inches by 9: KEYSTROKES DISPLAY 2 0 f 3 i ÷ 9 = 2 FEET 3 INCH PERCENTAGE CALCULATIONS The % key can be used for finding a given percent of a number or for working add-on, discount or division percentage calculations. It can be used with any type of number, in any dimension (Feet, Inch, Millimeter, etc) and any type of convention (non-dimensioned, Linear, Square or Cubic).
MEMORY OPERATION Whenever the µ key is pressed, the displayed value will be added to the Memory. Other memory functions: FUNCTION KEYSTROKES Add to Memory Subtract from Memory Recall total in Memory Display/Clear Memory Clear Memory µ Ç ® ® Ç µ µ ® ® Memory is semi-permanent, clearing only when you: 1) 2) 3) 4) turn off the calculator; press ® ®; press Ç ®; press Ç x (Clear All).
Using Memory Storage Keys (M1 - M3) In addition to the standard cumulative Memory (as previously described), your calculator has three independent Storage Registers – M1 through M3 – that can be used to permanently store single, noncumulative values. The following example shows the use of M1 (S 1). To use M2 or M3, replace the presses of the 1 key with presses of the corresponding number key (2 or 3 ).
PAPERLESS TAPE The Paperless Tape allows you to display and review the last 20 entries of a calculation. ® = accesses the tape mode and + or - scrolls forward or backward through the entries. Note: The Paperless Tape is cleared each time o is pressed twice, the unit is shut off, or a Clear All is performed. Previewing Paperless Tape KEYSTROKES DISPLAY 1. Enter a string of numbers: 4f+ 4 FEET 0 INCH 5f+ 9 FEET 0 INCH 6f+ 15 FEET 0 INCH 7f= 22 FEET 0 INCH 2.
USING THE HEAVYCALC PRO LENGTH, WIDTH, AND HEIGHT KEYS Using the Multi-Function W Key to find Area, Square-Up, and Perimeter Find the Area, Square-up and perimeter of a room measuring 15’ x 20’. KEYSTROKES oo 15fl 20fW W W W DISPLAY 0. LNTH 15 FEET 0 INCH WDTH 20 FEET 0 INCH AREA 300.
VOLUME CALCULATIONS Simple Concrete Volume You need to calculate the Cubic Yards of concrete required for pouring a driveway. The measurements are as follows: 36 Feet 3 Inches by 11 Feet 6 Inches by 4 Inches deep. What’s the Volume of the driveway? If concrete costs $47 per Cubic Yard, how much will the concrete cost? KEYSTROKES DISPLAY 1. Clear calculator: oo 0. 2.
Topsoil Volume You are measuring a building perimeter for calculating topsoil excavation. If the building measurements are 45 Feet by 23 Feet, and the Depth of topsoil to be removed is 8 Inches, what is the building Area and Volume of topsoil to be removed? KEYSTROKES DISPLAY 1. Clear calculator: oo 0. 2. Enter Length and Width of the building: 45fl LNTH 45 FEET 0 INCH 23fW WDTH 23 FEET 0 INCH 3. Find building Area: W AREA 1035. SQ FEET 4. Enter Depth to be removed: 8ih HGHT 8 INCH 5.
Complex Concrete Volume You’re going to pour an odd-shaped patio 4-1/2 Inches deep with the dimensions as shown. First, calculate the total Area (by dividing the drawing into three individual rectangles) and then determine the total cubic Yards of concrete required for this job. What is the total cost of the concrete if it is selling for $55 per Cubic Yard? 27’ 0” 9’ 6” B 4’ 2” 38’ 2” A C 8’ 6” 9’ 0” KEYSTROKES DISPLAY 1. Clear calculator: oo 0.
(Cont’d) KEYSTROKES DISPLAY 2. Find Area “A” and add to Memory: 38f2i -4f2i=l LNTH 34 FEET 0 INCH 2 7 f W WDTH 27 FEET 0 INCH W AREA 918. SQ FEET µ M+ 918. SQ FEET M 3. Find Area “B” and add to Memory: 4f2il LNTH 4 FEET 2 INCH 8f6iW WDTH 8 FEET 6 INCH W AREA 35.41667 SQ FEET µ M+ 35.41667 SQ FEET 4. Find Area “C” and add to Memory: 9fl LNTH 9 FEET 0 INCH 9f6iW WDTH 9 FEET 6 INCH W AREA 85.5 SQ FEET µ M+ 85.5 SQ FEET M M M M M M M M 5. Find Total Area/Volume and cost: ®® M+ 1038.
Trench Volume You’re digging a trench that is 345 Feet long, 24 Inches wide and 6 Feet deep. Find the Volume of soil removed. KEYSTROKES DISPLAY 1. Clear calculator: oo 0. 2. Enter Length, Width and Depth (Height) of trench: 345fl LNTH 345 FEET 0 INCH 24iW WDTH 24 INCH 6fh HGHT 6 FEET 0 INCH 3. Find removed dirt Volume: h VOL 153.
RIGHT TRIANGLE PROBLEMS The calculator’s top two rows of keys include built-in solutions to Square-up, Drop, Percent Grade and Slope problems. Square-up is calculated from the values entered as Length and Width. Slope and Percent Grade are calculated using the values for Width and Height (Depth). Slope = Depth Width A slope can be entered as: • A Slope Ratio: • 2 5 Í* • A percent grade: 2 5 Ç Í • A slope angle: 5 Ç 8 Í *This represents a 4:1 slope ratio (e.g., 4 Ç ÷ Í ).
Squaring-up a Concrete Slab Assume you want to “Square-up” the forms for a concrete foundation measuring 45 Feet 6 Inches by 24 Feet 4 Inches. To Square the forms, find the Square-up (Diagonal) Length. If the slab is 4 Inches thick, find the Area and Volume. al) on 24’ 4” iag U re- ua Sq D p( 45’ 6” KEYSTROKES DISPLAY 1. Clear calculator: oo 0. 2. Enter Length, Width and Height (Depth) and solve for Area and Volume: 45f6il LNTH 45 FEET 6 INCH 24f4iW WDTH 24 FEET 4 INCH W AREA 1107.
Finding Lot Width What is the Width of a lot that has a 5 Degree Slope and a total Drop of 2 Feet? KEYSTROKES DISPLAY 1. Clear calculator: oo 0. 2. Enter Slope and Drop: 5Ç8Í SLP 5.00° 2fh HGHT 2 FEET 0 INCH 3. Solve for Width: W WDTH 22 FEET 10-5/16 INCH Note: Slope and Percent Grade work with Width and Height, not Length. Make sure to clear your calculator ( o o) before performing a Length, Width and Height calculation.
3. Solve for Drop: h HGHT 2 FEET 2-1/4 INCH Solve Drop Using Percent Grade 4. Enter 5% Grade: 5 Ç Í (%Grade) 5. Solve for Drop: h HGHT 1 %GRD 5. FEET 3 INCH Solve Drop Using Slope ratio 6. Enter 4:1 Slope: 4 Ç ÷ (1/x) Í 7. Solve for Drop: h (Depth) 0.25 SLP 0.
Finding Slope Ratio/Percent Grade What is the Slope Ratio and Percent Grade of a lot that drops 3 Feet 6 Inches over 20 Feet? KEYSTROKES DISPLAY 1. Clear calculator: oo 0. Solve for Slope ratio 2. Enter Drop (as Height): 3f6ih HGHT 3 FEET 6 INCH 3. Enter Distance (as Width): 20fW WDTH 20 FEET 0 INCH 4. Find Slope Ratio: Í SLP 0.175 Solve for degree of Slope 5. Find Degree of Slope: Í SLP 9.93° Solve for Percent Grade 6. Find Percent Grade: Í %GRD 17.
Drop of Sloped Slab You’re pouring a sloped concrete slab with a Length of 14 Feet. If the standard drop or fall is 1/8 Inch per Foot, what is the total drop or fall? What if the drop is 1/4 Inch per Foot or .375 Inch per Foot? KEYSTROKES DISPLAY 1. Clear calculator: oo 0. 2. Enter total Length of slab: 14fl LNTH 14 FEET 0 INCH 3. Enter 1/8 Inch drop per Foot and find amount of drop: 1/8dd DROP 0 FEET 1-3/4 INCH 4. Enter 1/4 Inch drop per Foot and find amount of drop: 1/4dd DROP 0 FEET 3-1/2 INCH 5.
Drop of Retaining Wall You’re building a 61 Feet 8 Inch retaining wall along a driveway that slopes away at 1/4 Inch per Foot. There are 4 sections, each measuring 15 Feet 5 Inches in Length. What is the proper drop amount for each section? What is the total (accumulated) drop Depth at the end of all four sections? KEYSTROKES DISPLAY 1. Clear calculator: oo 0. 2. Enter wall section Length: 15f5il LNTH 15 FEET 5 INCH 3.
CALCULATING LOADS How many 8 Cubic Yard truck loads would be needed to haul the dirt from an excavation measuring 108 Feet x 48 Feet and 1 Foot deep? KEYSTROKES DISPLAY 1. Clear calculator: oo 0. 2. Enter load size: 8yyyS¬ L-SZ STORED 8. CU YD 3. Enter site Length: 108fl LNTH 108 FEET 0 INCH 4. Enter site Width: 48fW 5. Enter site Depth: 1fh WDTH 48 FEET 0 INCH HGHT 1 FEET 0 INCH 6. Find number of loads: ¬ LOAD 24.
BASIC CUT / FILL SOLUTIONS Finding Cut or Fill — Exercise 1 Find the Cut/Fill marks or changes of elevations for a lot with a proposed elevation of 4.0 Feet and existing elevations of 3.0 Feet, 4.5 Feet and 6.0 Feet. KEYSTROKES DISPLAY 1. Clear calculator: oo 0. Solve for First Cut/Fill mark 2. Enter proposed elevation: 4fp PROP 4 FEET 0 INCH 3. Enter first existing elevation: 3fe EXST 3 FEET 0 INCH 4. Find first Cut/Fill: F FILL 1 FEET 0 INCH Solve for Second Cut/Fill mark 5.
Finding Cut or Fill — Exercise 2 Find the Cut/Fill marks for a lot that has a proposed elevation of 15.5 Feet, and the following existing elevations: 17.3 Feet, 20.7 Feet, 25.5 Feet and 11.8 Feet. KEYSTROKES DISPLAY 1. Clear calculator: oo 0. Solve for First Cut/Fill mark 2. Enter proposed elevation: 1 5 • 5 f p PROP 15.5 FEET 3. Enter first existing elevation: 1 7 • 3 f e EXST 17.3 FEET 4. Find First Cut/Fill: F CUT – 1.8 FEET Solve for Second Cut/Fill mark 5.
Cubic Yards of Cut/Fill — Grid Cell Method The four corner elevations of a Grid cell are 75.4 Feet, 77.5 Feet, 74.6 Feet, and 80.5 Feet. If the proposed elevation is 83 Feet, and the Area of the Grid is 2,000 Square Feet, what is the Volume (in Cubic Yards) of cut or fill required for this Grid cell? KEYSTROKES DISPLAY 1. Clear calculator: oo 0. Find average Existing Grid Elevation 2. Enter first through fourth elevation (in Memory): 75•4fµ M+ 75.4 FEET M 77•5fµ M+ 77.5 FEET M 74•6fµ M+ 74.
Solve for Cut or Fill 5. Enter average as existing elevation: =e EXST 77. FEET 6. Enter proposed elevation: 83fp PROP 83 FEET 0 INCH 7. Find Cut or Fill: F FILL 6 FEET 0 INCH M M M Solve for Grid Volume 8. Enter Grid Area and find Volume: x2000ff= 12000. CU FEET 9. Convert to Cubic Yards: Çy 444.4444 CU YD 10. Clear M+: oÇ® M M 0. SHRINK AND SWELL SOLUTIONS — MATERIAL VOLUME The HeavyCalc is able to convert among Bank Fill, Compacted Fill and Loose (or trucked) Fill soil Cubic Yard Volumes.
Finding Loose Volume How much dry gravel will be trucked out of a hole to be dug that measures 10 Feet long by 35 Feet wide by 15 Feet deep? Assume dry gravel has a swell factor of 15%. KEYSTROKES DISPLAY 1. Clear calculator: oo 0. Solve Bank Fill Volume 2. Enter Length, Width and Depth: 10fl LNTH 10 FEET 0 INCH 35fW WDTH 35 FEET 0 INCH 15fh HGHT 15 FEET 0 INCH 3. Solve for Volume: h VOL 5250. CU FEET Çy 194.4444 CU YD 4. Enter as Bank Volume: =b BANK 194.4444 CU YD Solve Loose Fill Volume 5.
Finding Trucked Volume / Weight — Both Swell and Shrink Factors You need to move wet sand from one location to another that requires a 4-Inch fully compacted fill under a 125 Feet Long by 75 Feet Wide slab. What is the trucked (loose fill) Volume? Assume a Swell Factor of 5% and a Shrink Factor of 10%. What is the total Weight, in Tons, of the sand if it Weighs 1.55 Tons per Cubic Yard? KEYSTROKES DISPLAY 1. Clear calculator: oo 0. 2. Enter Shrink/Swell Factors: 5 Ç L (%Swell) %SWL STORED 5.
(Cont’d) KEYSTROKES DISPLAY 6. Enter Unit Weight: 1 • 5 5 S 0 (wt/vol) STORED 1.55 Ton Per CU YD 7. Recall Bank Volume: b BANK 128.6008 CU YD 8. Find Weight in Tons: Ç 6 (tons) 199.3313 Ton 9. Clear calculator and restore default values: Ç x (Clear All) 0.
APPENDIX Setting Fractional Resolution Fractional resolution is pemanently set via the Preference Settings (see Preference Settings section for instructions). To select other formats temporarily (e.g., 1/64, 1/32, etc.), see the example below: Add 44/64 to 1/64 of an Inch and then convert the answer to other fractional resolutions: KEYSTROKES oo 44/64 +1/64= Ç 1 (1/16) Ç 2 (1/2) Ç 3 (1/32) Ç 4 (1/4) Ç 6 (1/64) Ç 8 (1/8) oo DISPLAY 0.
Default Settings After a Clear All (Ç x), your calculator will return to the following settings: STORED VALUES Load Size Percent Shrink Percent Swell Weight per Volume DEFAULT VALUE 8 CU YD 5% 10% 1.
Accuracy/Errors Accuracy/Display Capacity – Your calculator has a twelve digit display. This is made up of eight digits (normal display) and four fractional digits. You may enter or calculate values up to 19,999,999.99. Each calculation is carried out internally to twelve digits. Errors – When an incorrect entry is made, or the answer is beyond the range of the calculator, it will display the word “ERROR.” To clear an error condition you must press the o button once.
Battery This model uses one (1) CR-2016 battery (included). This should last approximately 800 hours of actual use (1 year plus for most people). Should your calculator display become very dim or erratic, replace the battery. Note: Please use caution when disposing of your old batteries as they contain hazardous chemicals. Note: Values in memory or shown on the display will be cleared. Replacement batteries are available at most discount or electronics stores.
AREA AND VOLUME FORMULAS Area Formulas POCKET REFERENCE GUIDE — 43
Surface Area and Volume Formulas POCKET REFERENCE GUIDE — 44
REPAIR AND RETURN Warranty, Repair and Return Information Return Guidelines 1. Please read the Warranty in this User's Guide to determine if your Calculated Industries product remains under warranty before calling or returning any device for evaluation or repairs. 2. If your product won't turn on, check the battery as outlined in the User's Guide. 3. If you need more assistance, please go to the website listed below. 4.
WARRANTY Warranty Repair Service – U.S.A. Calculated Industries (“CI”) warrants this product against defects in materials and workmanship for a period of one (1) year from the date of original consumer purchase in the U.S. If a defect exists during the warranty period, CI, at its option, will either repair (using new or remanufactured parts) or replace (with a new or remanufactured calculator) the product at no charge.
Disclaimer CI MAKES NO WARRANTY OR REPRESENTATION, EITHER EXPRESS OR IMPLIED, WITH RESPECT TO THE PRODUCT’S QUALITY, PERFORMANCE, MERCHANTABILITY, OR FITNESS FOR A PARTICULAR PURPOSE. AS A RESULT, THIS PRODUCT, INCLUDING BUT NOT LIMITED TO, KEYSTROKE PROCEDURES, MATHEMATICAL ACCURACY AND PREPROGRAMMED MATERIAL, IS SOLD “AS IS,” AND YOU THE PURCHASER ASSUME THE ENTIRE RISK AS TO ITS QUALITY AND PERFORMANCE.
FCC CLASS B This equipment has been certified to comply with the limits for a Class B computing device, pursuant to Subpart J of Part 15 of FCC rules. LOOKING FOR NEW IDEAS Calculated Industries, a leading manufacturer of specialfunction calculators and digital measuring instruments, is always looking for new product ideas in these areas. If you have an idea, or a suggestion for improving this product or User's Guide, please submit your comments online at www.calculated.
This equipment has been certified to comply with the limits for a Class B computing device, pursuant to Subpart J of Part 15 of FCC rules. Software copyrighted and licensed to Calculated Industries, Inc. by Construction Master Technologies, LLC, 2006. Pocket Reference Guide copyrighted by Calculated Industries, Inc. © 2006. HeavyCalc™ is a trademark, and Construction Master® and Calculated Industries® are registered trademarks of Calculated Industries, Inc.
