Product Description

Master Pro, Advanced Construction Calculator, Works In & Converts Between All Building Dimensional Formats, Custom Set Fractions, Includes Protective Hard Case, User Guide, Field Guide & Long Life Batteries.

Product Details

• Amazon Sales Rank: #3169 in Home Improvement
• Brand: Calculated Industries
• Model: 4065
• Number of items: 1
• Dimensions: 1.00" h x 3.00" w x 6.00" l, 1.00 pounds

Features

• Financial calculator designed for construction professionals
• Performs common building formulas; area and volume calculations; works in various units, English/metric
• Plastic back, aluminum front, soft rubbed buttons
• Includes 2 3-volt lithium batteries, user guide, quick reference guide, protective slide cover
• 5.6 by 3 by 1/2 inches; display dimensions 0.86 by 2-1/2 inches; 3.2 ounces; 1-year warranty

From the Manufacturer
More sophisticated and easier to use than ever before, the Construction Master Pro Advanced Construction-math Calculator from Calculated Industries is the most complete builder's calculator on the market! Designed for builders, general contractors, carpenters, framing contractors, concrete/foundation contractors, remodelers and other construction professionals, the Construction Master Pro features powerful new built-in solutions for more accurate bids and less waste. Perfect for completing layouts, bids and estimates, the Construction Master Pro saves time, money, materials and frustration by quickly converting all building dimensional formats with custom-set fractions. Your purchase includes a protective hard case, user guide, field guide and long life.

FEATURES

• Dimensional Math and Conversions
• Work Directly in Feet, Inches, Fractions, Yards and Metric
• Handles All Fractions: 1/2, 1/4, 1/8, 1/16, 1/32, 1/64's
• Instant Area and Volume
• Easy Right Angle and Rafter Calculations Including Slopes, Square-Ups
• Common Rafter Lengths
• Regular and Irregular Hip/Valley Rafter Lengths
• Regular and Irregular Jack Rafter Lengths
• Complete & Enhanced Stair Riser/Tread Solutions
• Board Feet/Lumber Estimation
• Per Unit Material Cost
• Six Material Estimation Functions: Block, Brick, Column, Cone, Footing, Roof
• Custom Rafter Settings
• Ascending or Descending Lengths
• Plumb, Level and Cheek Cut Angles
• Improved Rake Wall Function
• Advanced Circle Solutions
• D:M:S to Decimal Degree Conversions
• Acres, Kilograms, Pounds, Tons and Metric Tons Conversions
• Handy Backspace Key
• Memory Storage Keys
• User Set Preferences
• Paperless Tape
• Works as a Regular Calculator

SPECIFICATIONS

• Size: 5.6 x 3.0 x 0.6" (142.2 x 76.2 x 15.2 mm)
• Product Weight (Including Case and Pocket Reference Guide) 4.5 oz. (127.5 g)
• Power: Two 1.5-Volt Alkaline Batteries (LR-44/A76)
• Battery Life: Approx. 1-2 years of actual usage
• Auto Shut-off: 8-12 min.
• Keypad: 42 keys, soft-touch silicone rubber
• Pocket Reference Guide: 36 pp.; 2.4 x 4" (60.9 x 101.6 mm)
• Case: Protective hard case; black
• Operating Temperature: 32-130 deg. F (0-55 deg. C)
• Display Type: LCD segment; 11 digits (7 normal, 4 fractions), with annunciator-legends
• Display Dimensions: 0.63 x 2.5" (16.0 x 63.5 mm)
• Accuracy: 10 digit internal accuracy

Customer Reviews

Increases accuracy and productivity
Fine Homebuilding recently ran an article about framing a dormer that included step-by-step instructions about how to use this calculator to generate complete measurements to do much of the framing in advance on the ground. After reading the article and watching a framer I sometimes work with use one to run circles around truss manufacturing company representatives, I decided it was time to buy one for my own use.

I have a science background so I initially leaned toward buying the more expensive trig model, but decided on the regular one because it has the following features not available on the trig model: quantity estimators for various sizes of drywall sheets; volume estimators for concrete footers, slabs, & circular piers; and estimators for various sizes of brick and blocks. I carry a Palm Pilot with me that has trig functions in case I need them, but for the remodeling work I do, I haven't needed any trig values now that I no longer manually do trig calculations. The calculator can generate angles, hypotenuse lengths, side lengths, areas, volumes, etc. based on a few known quantities. For example, if two sides of a triangle (can be regular sides or one side and a hypotenuse) are known, it'll give the angle / pitch. Likewise, if the angle and one side are known it'll generate lengths for the other two sides. I've found that I no longer have a need for trig values since blueprints and field measurements only involve lengths and angles / pitches which this calculator is set up to work with.

A different reviewer was bothered that this calculator rounded to the nearest 1/16th of an inch. That's the default factory setting, but it can easily be changed to a different accuracy level all the way down to 1/64th of an inch. I keep mine set to 1/32th of an inch.

I've been using the Construction Master Pro on the job for about a month now and it has really sped up my calculations as well as helped avoid errors, especially when I'm tired. I occasionally use it to determine quantities of shingles and bricks needed for a job or to do complex calculations involving a variety of angles (it has crown molding functions for irregular walls that have replaced the charts I used to carry in my truck), but most of the time I use it for simple calculations like dividing measurements.

Here are two examples: I needed to put in a diagonal brace for a two-piece rack that held trim for a job so I just measured the height of one side of the rack and the horizontal distance between the two supports and the calculator gave me the length and plumb cut angles for my diagonal brace that went from the top of one side to the bottom of the other. This took about 10 seconds and my piece fit perfectly. To determine the number of shingles I needed for a roof, I entered length and width of the area below the roof and the roof's pitch and it calculated the area of the sloped roof as well as the number of squares and bundles of materials.

Other features that I find useful include: stair calculations (with some powerful features including limiting maximum riser heights, specifying various tread lengths, limiting the number of risers, etc.), hip / valley roof framing calculations, estimating the number of studs needed for a job, calculating rake wall stud cut angles and lengths, arc calculations, and squaring calculations (no more need to use multiples of 3-4-5; any numbers will do). Features I probably won't use much include board foot calculations, conical volumes, and tonnage calculations.

This calculator isn't a substitute for good construction knowledge and the ability to visualize the process, but it sure can help take these skills to the next level.

construction master pro trig
I recently purchased the master pro trig, and im very happy with it. Im a carpenter by trade and do alot of framing, this this does away with the need for all the math or tables for irregular roofs ect. brilliant!!

Construction Master Pro Purchase
I was completely satisfied with the recent purchase of the Construction Master Pro from Amazon. It arrived early, and in the original packaging, and works great. I would definitely recommend this company from anyone looking for the same device. Well done!