The Number Yard
A Fun and Easy Guide to the Math You Need for Construction... And Nothing Else. ::: By Alan Cook ~ Illustrated by Mary E. Scott

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Table of Contents
(Download a PDF)

Chapter 1:
Introduction 1
Why You Need to Understand Math 1
"The Number Yard" Will Save You Time 2
How This Book is Arranged 2


Chapter 2:
Math Strategies 3
Measurements 3
Length 4
Area 4
Volume 5
Numbers vs. Units 5
Solving for an Unknown 5
Selectively Asking "Why" 6
The Number Yard 7


Chapter 3:
Multiplying & Dividing by 1 9
The Number One 9
Many Ways to Write the Number "1" 10
The "Multiplying by 1" Technique 10
Units Give a Number Value 11
Chapter 3 Review 13


Chapter 4:
Lot Layout & Building Footprint 15
Calculating Lot Size 16
The Bungalow Footprint 18
Rectangle Area versus Triangle Area 19
The Driveway 20
Chapter 4 Review 21
Time out 21


Chapter 5:
Fractions & Decimals 23
The Number "1" 23
Introduction to Fractions 23
Practical Fractions 24
Addition & Subtraction of Fractions 24
Multiplying & Dividing Fractions 25
Converting a Denominator 25
Subtracting Fractions 26
Decimals 26
The Language of Math 27
Translating Within Language of Math 28
Chapter 5 Review 30
Chapter 5 Action 30


Chapter 6:
The Foundation 31
Ninety Degree Angle 31
Method 1: The 6-8-10 Triangle 32
Method 2: Equal Diagonals 33
Fractions and Decimals 34
The Perimeter 34
Area and Volume 35
Calculating Footing & Slab Concrete 35
Concrete Costs 37
Converting Units 37
Chapter 6 Review 38


Chapter 7:
Problem Solving 39
Sample Problem 39
Solving Problems 40
Focus 41
Making Units Useful by Multiplying by 1 42
Converting From a Given Unit to Your Unit of Choice 43
Types of Knowledge 44
Practice 44
Chapter 7 Review 46


Chapter 8:
Framing and Roof 47
Board Feet 47
Anatomy of a Stud Wall 48
Calculate the Wall Height 48
Calculate the Wall Thickness 49
Wall Framing 49
Insuring Walls are Square & Plumb 49
Laying out the Bay Window Angles 50
Centering a Window within a Wall 50
Roof Framing 51
Ridge Height 52
Rafter Length 54
Roof Frame Review 54
Angles, Degrees, Parts of a Degree 55
Mud Room Roof Framing 55
Area of Roof 57
Plywood Sheathing Needed 59
Roofing Materials 59
The Number Yard 60
Chapter 8 Review 60




 


Continued...

Chapter 9:
Circles and Cylinders 61
The Number "Pi" 61
Working with Pi 62
Circles and Degrees 62
Circles and Clocks 62
Time to Think 63
Volume of a Cylinder 64
Coffee Break 65
Doughnut with That Coffee? 66
Chapter 9 Review 68


Chapter 10:
Exterior Siding 69
Option 1: T-111 Sheets Siding 69
Option 2: Vertical T&G Siding 69
Option 3: Horizontal T&G Siding 70
Amount of Vapor Barrier 71
Converting Siding to Cost 71
Practice Problem 71
Chapter 10 Review 72


Chapter 11:
Plumbing and Electrical 73
Plumbing 73
Pipe Volume 74
Real Life Plumbing Problem 75
Another Real Life Plumbing Problem 76
More Real Life Plumbing 76
Calculating Drain Pipe Slope 76
Electrical 77
Electrical Problem 78
Applied Watts 78
Chapter 11 Review 79


Chapter 12:
Fractions, Decimals, & Percent Review 81
Cookies 81
Cookies and Other Quantities 82
Choosing the Expression 82
Problem 82
Another Problem 83
Yet Another Problem 83
Percent vs. Decimals 84
Fractions and Decimals 84
Chapter 12 Review 85


Chapter 13:
Interior Finish Work 87
Area of Ceiling 87
Ceiling Insulation 88
Ceiling Sheetrock 88
Area of Interior Walls 88
Wall Finish Materials 89
Wall & Ceiling Paint 89
Chapter 13 Review 90


Chapter 14:
Angles, Shapes Area, & Volume Review 91
Angles 91
Rectangles 91
Area of a Rectangle 92
Triangles 93
Trapezoids 93
Length vs. Area vs. Volume 93
Chapter 14 Review 95
Chapter 15: Driveway and Finish Work 97
Concrete driveway 97
Finish Work 98
Celebration Dinner 99
Chapter 15 Review 100


Chapter 16:
Percent, Decimal, & Payroll 101
Follow the Money 101
Payroll Taxes 101
Profit 102
Problem 1 103
Problem 2 103
Problem 3 103
Chapter 16 Review 104


Chapter 17:
Epilogue 105


Conversion Factors & Handy Equations 107


About the Author & Illustrator 109