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Construction Master Stair Calculator

The Construction Master can be used as a stair calculator, to figure rafter lengths, squaring walls, and many more uses. In addition to the special purpose uses already mentioned the construction master can also perform the functions of a regular calculator.

This is the handiest stair construction tool to come along since the framing square. Accurate to within 1/16th of an inch it will greatly speed up and simplify the math involved with stair layout.

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Stair Calculator Functions

After entering the values for total rise, run, and desired riser height the construction master will accurately and quickly display the following information.

  • Total Rise
  • Total Run
  • Desired Riser Height
  • Desired Tread Width
  • Fraction Setting or the accuracy 1/16 1/8 etc.
  • Number of Stair Risers
  • Riser Height
  • Riser Difference, Plus or Minus
  • Number of Stair Treads
  • Tread Width
  • Tread Difference, Plus or Minus
  • Stringer Length
  • Angle of Incline
  • Stair Calculator Riser Setting

    By default the desired riser and tread settings are set at 7 1/2" and 10" respectively. The desired riser height can be reset to a new height if you need it for a special set of stairs such as the type used in nursing homes.

    Lets say you need to build stairs with a 5 1/2" rise to reset the desired riser height you would use the following key strokes to enter the new default setting for the calculator. Press 5, inch, 1, /, 2, stair, and the calculator window will display R-Htm 5 1/2. This tool really is that easy to use.

    Free Trial Download

    Get a free 30 day trial of the Construction Master calculator for your PC by filling out the form below. Sorry MAC user's, this is only for windows. After completion of the form, a link to the download will be e mailed to you.

    There is also a short demo of the Calculator available, even though you won't be able to input your own values.

    Stair Calculator

    Construction Master Calculator
    Free Trial Download
    Only for Windows
    Please note that all fields followed by an asterisk must be filled in.
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    Uses for Construction Master 5

    Roof Framing

  • Gable Roof Framing
  • Hip
  • Gambrel
  • Valley

    Building Stairs

  • Spiral
  • Straight
  • L Shaped
  • U Shaped
  • Winders
  • Deck Stairs



    Wall Framing

  • Raked Walls
  • Balloon Framed Gable Walls
  • Squaring Walls

    This is merely a small sampling of the functions of this calculator. It is truly the best carpentry tool since the invention of the electric saw.

    Links to Related Pages

    Stair Calculator to Homepage

    Stair Layout

    Portable Stairs

    Prefabricated Stairs

    Framing Square

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