CONSTRUCTION MASTER HEAVYCALC™ For Today’s Excavation Professional USER’S GUIDE
TABLE OF CONTENTS Introducing HeavyCalc . . . . . . . . . . . . . . . . . .3 Key Definitions . . . . . . . . . . . . . . . . . . . . . . 4 Basic Functions . . . . . . . . . . . . .4 Dimension Keys . . . . . . . . . . . . .6 Area/Volume & Angle Keys . . . . .9 Excavation/Volume Keys . . . . . .10 Additional Key Functions . . . . .12 Fractional Rounding Settings . . .13 Using the HeavyCalc . . . . . . . . . . . . . . . . . .14 Linear Dimensions . . . . . . . . . .14 Square and Cubic Dimensions . .
INTRODUCING HEAVYCALC™ Designed for today’s excavation and heavy construction professional, the Construction Master HeavyCalc™ adds even more power to the Construction Master line-up.
KEY DEFINITIONS Basic Functions [+] [–] [x] [÷] [=] Math Operators — Used to calculate math problems. [%] Percent — Four-function percent key. 0 – 9 and [ • ] Numerical Digits and Decimal Point Used for keying in numbers. [Off] Power Off — Turns all power off. Resets the display and all non-permanent registers. [On/C] On/Clear — Turns on power. One press clears the last entry and display. Two presses clear all temporary registers. [Conv] Convert — Used with dimensional keys to convert among dimensions.
[Cnst] Constant – This key is used to store a value permanently for use as a constant in repeated calculations. [Conv] [Cnst] Square Root — Used to find the square root of a non-dimensional or area value. [M+] Memory Add — Adds the displayed value to the Memory total in the summation register. The Memory total is recalled by pressing [Rcl] [M+]. [Conv] [M+] Memory Subtract — Subtracts the displayed value from Memory. [Rcl] Recall — Recalls values stored in any register (i.e.
Dimension Keys [Yds] Yards — This is an entry and conversion key (when used with [Conv]). The entry can be a whole number or a decimal number. [Feet] This is an entry and conversion key (when used with [Conv]). The entry can be in whole or decimal numbers. This key can also be used in conjunction with the [Inch] and [/] keys for entering values in Feet-Inch format. For example, 6 feet 9-1/2 inches is entered as follows: 6 [Feet] 9 [Inch] 1 [/] 2.
[/] Fraction Bar — This key is used to enter fractions. Fractions can be entered as proper (1 or less – 1/2, 1/8, 1/16) or improper (greater than 1 – 3/2, 65/64). For example, to enter 1/2, the key sequence would be: 1 [ / ] 2. If the denominator (the bottom number) is not entered, then the set fractional level (1/16, 1/2, etc.) is used. [Rcl] [/] displays the current fractional setting.
[m] Meters — This is an entry and conversion key used to enter decimal meters or, when used with [Conv], to convert to decimal meters from some other dimensional format. [mm] Millimeters — This is an entry and conversion key used to enter decimal millimeters or, when used with [Conv], to convert to decimal millimeters from another dimensional format.
Tons per Cubic Yard, press 2 [Conv] [%]. Value will be permanently stored. To recall stored value, press [Rcl] [%]. Area/Volume & Angle Keys [Length] Enters the value for length in dimension problems (e.g., for calculating area or volume). [Conv] [Length] Square-up — Computes the diagonal, or “square-up,” based on entered length and width. [Width] Enters the value for width in dimension problems (e.g., for calculating area or volume).
[Conv] [Depth] Slope — Used to enter slope as a ratio of run per unit rise (e.g., 4:1), or in decimal degrees (e.g., 10°). Also computes slope using entered value for width and depth, or percent grade. Note: Only works with width. Does not operate in conjunction with length. [Vol] Volume — Computes the volume (in cubic yards) based on entered length, width and depth values. A second press will display the area (in square feet) based on entered length and width.
[Exist] Existing — Used to enter or calculate an existing benchmark, grade or value. [Prop] Proposed — Used to enter or calculate a proposed benchmark, grade or value. [Bank] Bank Volume — Enters or calculates the volume for bank fill material. Bank fill is material in an untouched, pristine state. [Comp] Compacted Volume — Enters or calculates the volume for compacted fill material. Compacted fill is material that has been compacted.
Additional Key Functions [Conv] [ ÷ ] Reciprocal — 1/x function. [Conv] [ x ] All Clear — Clears all values including Memory. Resets all permanent registers to default settings (weight per volume and fraction set). [Conv] [ + ] Pi (π) — Constant = 3.141593. [Conv] [ – ] +/– Toggles the sign of the displayed value between positive and negative. [Rcl] [ = ] Tape — Accesses the paperless tape mode.
Fractional Rounding Settings [Conv] 1 Fraction set to 1/ 16 [Conv] 2 Fraction set to 1/2 [Conv] 3 Fraction set to 1/32 [Conv] 4 Fraction set to 1/4 [Conv] 6 Fraction set to 1/64 [Conv] 8 Fraction set to 1/ 8 [Conv] 7 Fraction set to “Normal Mode” (reduces to the lowest common denominator). [Conv] 9 Fraction set to “Fixed Mode” (denominator value always fixed or remains the same as fractional setting). [Conv] [ / ] Toggles the flashing fraction feature on/off.
USING THE HEAVYCALC Linear Dimensions To enter dimensional values, enter the largest dimension first – feet before inches, inches before fractions. Enter fractions by entering the numerator (value above the line), pressing [ / ] and then the denominator (value below the line). Note: If no denominator is entered, the default fraction setting is used.
Square and Cubic Dimensions Square and cubic dimensions are entered in the following order: 1) Numerical Value 2) Convention – Square or Cubic 3) Unit – Meters, Yards, Feet, Inches Note: Feet–Inch format cannot be used to directly enter square or cubic values. By definition, this display format is a linear measurement. However, the area or vol ume can be found through simple multipli cation.
Dimension Conversions Note: Before doing the following exercis es, make sure the calculator is set to facto ry defaults. To do this, press [Conv] [x]. ALL SAMPLEEXERCISESIN THISMANUAL AREBASED ON DEFAULT VALUES UNLESS OTHERWISE STATED. Linear Conversions Convert 14 feet to other linear dimensions: Keystrokes [On/C] [On/C] Display 0. 14 [Feet] . . . [Conv] [Yds] 4.666667 YD [Conv] [Feet] 14 FT 0 IN [Conv] [Inch] 168 IN [Conv] [mm] 4267.2 MM [Conv] [m] 4.
Square Conversions Convert 14 square feet to other square dimensions: Note: When converting values, [Conv] only has to be pressed once. Keystrokes [On/C] [On/C] Display 0. 14 [Sq] [Feet] . . . [Conv] [Inch] [Yds] [m] 2016 SQ IN 1.555556 SQ YD 1.300643 SQ M Cubic Conversions Convert 14 cubic feet to other cubic dimensions: Keystrokes [On/C] [On/C] Display 0. 14 [Cu] [Feet] . . . [Conv] [Inch] [Yds] [m] 24192 CU IN 0.518519 CU YD 0.
Weight Conversions Convert 25 tons to other weights: Keystrokes Display [On/C] [On/C] 0. 25 [Weight] . . . 25 TON [Conv] [Weight] 50000 LB [Weight] 22679.62 kG [Weight] 25 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 [Conv] [%]. The default value is 1.5 tons per cubic yard. Find the weight of 15 cubic yards at 1.
Math Operations Your calculator uses standard chaining logic. This means that you enter your first value, the operator (+, –, x, ÷), the second value, then the (=) sign. 3 3 3 3 [+] [–] [x] [÷] 2 2 2 2 [=] [=] [=] [=] 5 1 6 1.5 This feature also makes it easier to solve dimensional problems.
Subtracting Dimensions Subtract 3 feet from 11 feet 7-1/2 inches: 11 [Feet] 7 [Inch] 1 [/] 2 [–] 3 [Feet] =] 8 FT 7-1/2 IN Subtract 32 inches from 81 inches: 81 [Inch] [–] 32 [Inch] [=] 49 IN Multiplying Dimensions Multiply 5 feet 3 inches by 11 feet 6-1/2 inches: 5 [Feet] 3 [Inch] [x] 11 [Feet] 6 [Inch] 1 [/] 2 [=] 60.
Percentage Calculations The Percent [%] key is used to find a percent of a number or for working add-on, discount or division percentages. It can be used with any type of number, any dimension (feet, inch, millimeter, etc) and convention (nondimensioned, linear, square or cubic). Find 18% of 500 feet: 500 [Feet] [x] 18 [%] 90 FT 0 IN Add 10% for waste to 137 square feet: 137 [Sq] [Feet] [+] 10 [%] 150.
Memory Operation Whenever using the Memory Function, the following keys enable you to add, subtract, and recall values stored in memory: [M+] adds the displayed value to Memory. [Conv] [M+] subtracts the displayed value from Memory. [Rcl] [M+] recalls and displays the total value of the Memory. [Rcl] [Rcl] displays and clears the Memory. [Conv] [Rcl] clears memory without affecting the display. The Memory can be used with any format as long as values have the same convention.
How to Use the Memory Function Keystrokes Display 1. 355 [M+] 355. [Rcl] [Rcl] 355. 2. 355 [M+] 355. M 255 [M+] 255. M 745 [Conv] [M+] 745. M [Rcl] [Rcl] M – 135. 3. 10 [Feet] 5 [Inch] [M+] 10 FT 5 IN M 5 [Feet] 3 [Inch] 1 [/] 16 [M+] 5 FT 3-1/16 IN [Rcl] [Rcl] M 15 FT 8-1/16 IN You can also use [Conv] [Rcl] [M+] to replace any value in Memory with your current displayed value. 4. 355 [M+] 355. M 500 [Conv] [Rcl] [M+] 500. M [Rcl] [Rcl] 500.
Averaging The Memory Key ([M+]) is also capable of displaying the average and totals as well as the number (count) of values entered. This is achieved by repeated presses of [M+] after recalling the stored total value in Memory. Keystrokes Display 1 [M+] 1. M 2 [M+] 2. M 3 [M+] 3. M 4 [M+] 4. M 5 [M+] 5. M [Rcl] [M+] 15. M [M+] AVG 3. [M+] CNT 5. [Rcl] [Rcl] 24 – HeavyCalc™ M M 15.
Fraction Settings When your calculator is in a default condition (battery change or full reset), it is set to round fractional values to the nearest 1/16 of an inch. However, you may program your preference for six different accuracy levels and two different modes (Normal and Fixed), all of which remain in permanent memory until revised or reset. The fractional level can be permanently revised by using [Conv] in conjunction with the numbers 1, 2, 3, 4, 6, and 8.
Normal Fractional Mode The default, Normal Mode ([Conv] 7), reduces a fraction to its lowest common denominator (for example, 8/16 reduces to 1/2). If a fraction is entered having a higher fractional accuracy than the current setting, the setting will be temporarily revised to the level of accuracy of the entered value. Fixed Fractional Mode In the Fixed Mode ([Conv] 9), fractional results are displayed in the set fractional value, not reduced.
Paperless Tape Function The Paperless Tape allows you to review the last 20 entries of a calculation. To access this function press [Rcl] [=]. To review entered values, press [Rcl] [=] to access the tape mode and then press the [+] or [–] keys to scroll forward or backward through the entries. While in the paperless tape mode, the display will show the entered or calculated value, along with the sequence number of entry (e.g., 01, 02, 03, etc.
Important: To clear the paperless tape press [On/C] twice, or press off. Previewing Paperless Tape 1. Enter a string of numbers: 4 [Feet] [+] 4 FT 0 IN 5 [Feet] [+] 9 FT 0 IN 6 [Feet] [+] 15 FT 0 IN 7 [Feet] [=] 22 FT 0 IN 2. Access the Tape function: [Rcl] [=] TTL = 22 FT 0 IN 3. Scroll from first value to total: [+] 01 4 FT 0 IN [+] 02+ 5 FT 0 IN [+] 03+ 6 FT 0 IN [+] 04+ 7 FT 0 IN [+] TTL = 22 FT 0 IN 4. Scroll to last 2 values: [–] 04+ 7 FT 0 IN [–] 03+ 6 FT 0 IN 5.
Linear Calculations Spacing Calculation You have a 78 feet 6 inch length plot which you want to divide into five equal spaces. What is the length of each section? Steps/Keystrokes Display 1. Clear calculator [On/C] [On/C] 0. 2. Enter overall length 78 [Feet] 6 [Inch] 78 FT 6 IN 3. Divide by number of spaces [÷] 5 [=] 15 FT 8-3/8 IN 4. What is it in decimal feet? [Conv] [Feet] 15.7 FT 5. What is it in decimal inches? [Inch] 188.
Building Perimeter You are measuring a building perimeter with the following measurements: 32 feet, 25 feet 5-1/2 inches, 19 feet, 5 feet 6-1/2 inches, 13 feet, and 31 feet. What is the total perimeter? Steps/Keystrokes Display 1. Clear calculator [On/C] [On/C] 0. 2.
Area Calculations Area of a Rectangle What is the area of a plot measuring 112 feet 6 inches by 151 feet 8 inches? Steps/Keystrokes Display 1. Clear calculator [On/C] [On/C] 0. 2. Enter length 112 [Feet] 6 [Inch] [Length] 12 FT 6 IN 3. Enter width 151 [Feet] 8 [Inch] [Width] 151 FT 8 IN 4. Find area [Conv] [Vol] 17062.
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? Steps/Keystrokes Display 1. Clear calculator [On/C] [On/C] 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? Steps/Keystrokes Display 1. Clear calculator [On/C] [On/C] 0. 2. Enter length and width of building 45 [Feet] [Length] 23 [Feet] [Width] 3. Find building area [Conv] [Vol] 1035 SQ FT 4. Enter depth to be removed 8 [Inch] [Depth] 5.
Complex Concrete Volume 9' 0" The patio below is 4-1/2 inches deep. Find the total area (divide the drawing into three rectangles). Second, find the total yards of concrete required, and the total cost of concrete if the price is $55 a cubic yard? A 9' 6" B 34' 0" Steps/Keystrokes 8' 6" 27' 0" C 4' 2" Display 1. Clear calculator [On/C] [On/C] 0. 2. Enter length, width and find area “A” 34 [Feet] [Length] 27 [Feet] [Width] [Conv] [Vol] 3.
4. Enter length, width and find area “B” 4 [Feet] 2 [Inch] [Length] 8 [Feet] 6 [Inch] [Width] [Conv] [Vol] 35.41667 SQ FT 5. Add to Memor y [M+] 6. Enter length, width and find area “C” 9 [Feet] [Length] 9 [Feet] 6 [Inch] [Width] [Conv] [Vol] 85.5 SQ FT 7. Add to Memory [M+] 8. Find total Area/Volume [Rcl] [Rcl] 1038.917 SQ FT [x] 4 [Inch] 1 [ / ] 2 [=] 389.5937 CU FT 9. Convert to yards [Conv] [Yds] 14.4294 CU YD 10.Find total cost [x] 55 [Conv] [•] $ 793.
Trench Volume You’re digging a trench that is 6 feet deep, 24 inches wide and 345 feet long. Find the volume of soil removed. Steps/Keystrokes Display 1. Clear calculator [On/C] [On/C] 0. 2. Enter length, width and depth of trench 345 [Feet] [Length] 6 [Feet] [Depth] 24 [Inch] [Width] 3. Find removed dirt volume [Vol] 36 – HeavyCalc™ 153.
Right Triangle Problems The calculator’s top row of keys provides built-in solutions to square-up, drop, percent grade and slope problems. Square-up is computed from the values entered as length and width and is the diagonal length in a right triangle. Slope and percent grade are computed using the values for width and depth (or drop). Slope can be entered as either a ratio of run per unit rise, or as a decimal degree. Percent grade is entered as a percentage value.
Squaring a Concrete Slab 24' 4" Assume you want to square-up the forms for a concrete foundation measuring 45 feet 6 inches by 24 feet 4 inches. In order for the forms to be square, find the square-up (diagonal) length. If the slab is 4 inches thick, what are the area and volume of the slab? 45' 6" Steps/Keystrokes Display 1. Clear calculator [On/C] [On/C] 0. 2. Enter length, width and depth 45 [Feet] 6 [Inch] [Length] 24 [Feet] 4 [Inch] [Width] 4 [Inch] [Depth] 3.
Finding Lot Width What is the width of a lot that has a 5 degree slope and a total drop of 2 feet? Step/Keystroke Display 1. Clear calculator [On/C] [On/C] 0. 2. Enter slope and drop 5 [Conv] [0] [Conv] [Depth] 2 [Feet] [Depth] 3. Solve for width [Width] 22 FT 10-5/16 IN Note: Slope and % Grade work with Width and Depth, not Length.
Finding Drop or Fall What is the total drop over 25 feet for a 4:1 slope? For a 5 degree slope? For a 5% grade? Steps/Keystrokes Display 1. Clear calculator [On/C] [On/C] 0. Solve Drop using Slope ratio 2. Enter 4:1 slope and width 4 [Conv] [Depth] 25 [Feet] [Width] 3. Solve for drop [Depth] 6 FT 3 IN Solve Drop using Slope degree 4. Enter 5° slope 5 [Conv] [0] [Conv] [Depth] 5. Solve for drop [On/C] [Depth] 2 FT 2-1/4 IN Solve Drop using Percent Grade 6. Enter 5% grade 5 [Conv] [Width] 7.
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? Step/Keystroke Display 1. Clear calculator [On/C] [On/C] 0. Solve for degree of Slope 2. Enter drop (as Depth) 3 [Feet] 6 [Inch] [Depth] 3. Enter distance (Width) 20 [Feet] [Width] 4. Find degree of slope [Conv] [Depth] 9.926246° Solve for Slope ratio 5. Find slope ratio [Depth] 5.714286 (or 5.71 to 1) Solve for Percent Grade 6. Find percent grade [Conv] [Width] 17.
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 an existing elevations of 3.0 feet, 4.5 feet and 6.0 feet? Steps/Keystrokes Display 1. Clear calculator [On/C] [On/C] 0. Solve for 1st Cut/Fill mark 2. Enter proposed elevation 4 [Feet] [Prop] 3. Enter 1st existing elevation 3 [Feet] [Exist] 4. Find 1st Cut/Fill [Cut/Fill] 1 FT 0 IN FILL Solve for 2nd 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. Steps/Keystrokes Display 1. Clear calculator [On/C] [On/C] 0. Solve for 1st Cut/Fill mark 2. Enter proposed elevation 15.5 [Feet] [Prop] 3. Enter 1st existing elevation 17.3 [Feet] [Exist] 4. Find 1st Cut/Fill [Cut/Fill] – 1.8 FT CUT Solve for 2nd Cut/Fill mark 5. Enter 2nd existing elevation 20.
8. Find 3rd Cut/Fill [Cut/Fill] – 10 FT CUT Solve for 4th Cut/Fill mark 9. Enter 4th existing elevation 11.8 [Feet] [Exist] 10.Find 4th Cut/Fill [Cut/Fill] 3.7 FT FILL 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? Steps/Keystrokes Display 1.
3. Find total [Rcl] [M+] 308 FT 4. Find average [M+] 77 FT Solve for Cut or Fill 5. Enter average as existing elevation [=] [Exist] 6. Enter proposed elevation 83 [Feet] [Prop] 7. Find cut or fill [Cut/Fill] 6 FT FILL Solve for Grid Volume 8. Enter grid area and find volume [x] 2000 [Sq] [Ft] [=] 12000 CU FT 9. Convert to cubic yds [Yds] 444.
Shrink & Swell Solutions — Material Volume The HeavyCalc is able to convert among Bank Fill, Compacted Fill and Loose (or trucked) Fill soil cubic yard volumes. Once values for %-Shrink and %-Swell are entered, converting among these volumes is done with the press of a single key. Entered values for Percent Shrink and Percent Swell will remain in Memory until they are revised or reset ( [Conv] [x]).
3. Solve for volume [Vol] 194.4444 CU YD 4. Enter as Bank Volume [=] [Bank] Solve Loose Fill Volume 5. Enter 15% swell factor 15 [Conv] [Loose] 6. Find Loose Volume [Loose] 223.
Finding Trucked Volume/Weight –Both Swell & Shrink Factors You need to move wet sand from one location to another that requires a 4inch 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 of the sand if it weighs 1.55 tons per cubic yard? Steps/Keystrokes Display 1. Clear calculator [On/C] [On/C] 0. 2. Enter Shrink/Swell Factors 5 [Conv] [Loose] 10 [Conv] [Comp] 3.
6. Enter unit weight 1.55 [Conv] [%] 7. Recall Bank Volume [Bank] 128.6008 CU YD 8. Find weight [Weight] 199.3313 TON 9. Reset calculator [Conv] [x] 0.
APPENDIX Accuracy/Display – Your calculator has an eleven digit display. This is made up of seven digits (normal display) and four digits for the fraction. In a standard calculation, each calculation is carried out internally to 10 digits and is rounded to a 7-digit standard display. A 5/4 rounding technique is used to add 1 to the least significant digit in the display if the next non-displayed digit is five or more. If this digit is less than five, no rounding occurs.
played because it is out of the 7-digit display, so 10,000 meters will be displayed instead. This auto-ranging also applies to other dimensional units, such as inches to feet, and feet to yards, etc. Battery and Auto Shut-off – Your cal culator is powered by a single 3-Volt Lithium CR-2032 battery. This should last 800 hours of actual use (1 year plus for most people). Should the display become very dim or erratic, replace the battery. Warning! Please use caution when dispos ing of your old batteries.
WARRANTY REPAIR SERVICE — USA Calculated Industries, Inc. (“CII”) 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, CII at its option will either repair (using new or remanufactured parts) or replace (with a new or remanufactured unit) the product at no charge.
A repaired or replacement product assumes the remaining warranty of the original product or 90 days, whichever is longer. NON-WARRANTY REPAIR SERVICE — USA Non-warranty repair covers service beyond the warranty period or service requested due to damage resulting from misuse or abuse. Contact the CII Authorized Service Provider listed on the back page of the User’s Guide to obtain current product repair information and charges. Repairs are guaranteed for 90 days.
DISCLAIMER CII 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 A ST OI T SQ U A L I T Y 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 special function calculators and digital measuring instruments, is always looking for new product ideas in these areas. If you have one, or if you have any suggestions for improvements to this product or its User’s Guide, please call or write our Product Development Department. Thank you.
CONSTRUCTION M ASTER® and C ALCULATED INDUSTRIES® are registered trademarks and HEAVYCALC™ is a trademark of Calculated Industries, Inc. ALL RIGHTS R ESERVED Designed in the United States of America by Calculated Industries, Inc. ©1998, Calculated Industries, Inc .