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NEW! Brickwork Gauge, Bond and Quantities Calculator
Visually Calculate all Gauge and Bond Options with scaled diagrams + Quantities. 
Tank Volume Calculators
Horizontal and Vertical Cylindrical Elliptical and Rectangular Fill  Empty Rates + Dipstick Charts Live Animated Diagram Results 

Hip Roof Framing  Skillion  Gable
Diagrams  Cut Templates  Setout Plans. Rafter Calculator  Gambrel Geometry Inch  Metric 
Wall Framing Calculator Calculate Wall Framing member placement, sheet placement and quantities. Inch  Metric 
Stair Calculators  Detailed Plans
Headroom  Stair and Stringer Diagrams. Spiral Stair Calculator Baluster Spacing Calculator Inch  Metric 
Deck Plan and Cost Calculator
Stumps, Bearers, Joists, Boards. Spacings, Quantities, Costs. Inch  Metric 
Baluster Spacing Calculator
Calculate any Centers and Spacing with Quantities and Running Setout Measurements Inch  Metric 
Gambrel Roof Geometry
Gambrel Roof Framing Geometry Rafter and Gusset Diagrams. Inch  Metric 
Pitch  Angle  Rise  Run Calculators
Convert between Pitch and Angle. Measure Angles Directly from Device. Speak Measured Angle. Rise in Run 
Concrete Rebar Calculator
Rebar Spacing, Length and Weight. Exact or evenly adjusted spacing, with running placement mark out lists. 
Pulley  Belt  Rpm
Inch  Metric 
Large Printable Text Templates
Enter text or numbers, select font, drag sliders to resize + auto measure. Print large text and number templates. 
Circle Divider  Circle Math

Pipe Notching Templates
Print and cut pipe notching, miter and pipe through sheeting templates. Inch  Metric 
Rafter Calculator
Common Rafter Calculator  Rafter Dimensions  Plumb Cuts  Birdsmouth Dimensions + Cutting Templates. 
Circular Paving Calculator
Circular Paving Calculator with Full Scale Templates. 
Gear Ratio + RPM to MPH/KPH Calculator
With Auto Shift and Tracer Hit Auto Shift to run up through the gears recording shift point RPM and MPH/KPH. Motorcycle Gearing 
Kerf Spacing Calculator for Bending Wood
Calculate Kerf Spacing for bending wood With printable full scale set out templates. Inch  Metric 
Dovetail Template Generator
Print, fold over end of wood and cut through the template. Inch  Metric 
Segmented Turning Calculator
Calculate Segment Sizes for Woodturning. Inch  Metric 
Interactive Visual Triangle Calculators
Find Triangle Side Lengths, Angles, Area etc with animated interactive diagrams. Click and drag to edit and calculate. No Math Required! 
How to Lay Out a Square or Rectangle Square Up Enter 2 side lengths to draw diagram with correct diagonal for square layout. 
Print Cut & Fold Working Paper Sundials
Paper Sundials and full scale templates. Horizontal Sundials Equatorial Sundials 
Chain and Sprocket Calculator
Chain Length Sprocket Centers RPM & Gear Ratio Chain Speeds Chain and Sprocket Wear 
Full Scale Rafter Cut Templates
Print  cut and fold over rafter to mark or cut. 
Diminishing Lengths Calculator
Calculate Incremental Diminishing Lengths at Given Angle. 