Directory Metric or Imperial

Steel Spine Stair Stringer Geometry Calculator - Metric

Total Rise
Ideal Rise
Tread Thickness
Spine Depth
Check local building codes Geometric calculator only. Check local building codes.
No allowance for nosing (overlap)

Direct measure dimensions from diagram Left click, release and drag in diagram to measure.

Email this Calculation Creates a link (below) to save or Email current calculation


Steel spine stair calculator diagram with full dimensions

Running points up top of spine, to bottom of treads.


Running points up top of spine, to centre of treads (for brackets)


Running Measurements Vertically - Lower Floor to top of each tread (Possible landing heights. Blue = middle)

Cut Templates Print, cut and use the diagram as a template to mark top and bottom spine angles, and tread bracket template.

DON'T BREATH THE DUST If you're cutting blocks, concrete, stone or ANYTHING and there's DUST - DON'T TAKE THE RISK
Don't cut it, or cut it wet so there's NO DUST - Silicosis Sucks

How should we spell it?


Blue Dragon Childrens Foundation If you've benefited from this free service please consider supporting Blue Dragon Children's Foundation

Tell a Friend about this site!

Create PDF to print diagrams on this page. Help & Settings Printing Help Printing Help (new window)

Copy all diagrams on this page to bottom of page - Make multiple copies to Print or Compare.

View page on Phone via QR Code (Not current calculation result)

Contact Us (Australia) +61 7 40987645 m: 0438 165 753

All calculators on this site are geometric only.
Check relevant local regulations for appropriate sizes, spacings and all engineering requirements.

Disclaimer   |   Privacy & Cookie Policy

Copyright © 2019 -
Zoom 100% Zoom out to fit large full scale template images on screen

Slider Controls To fine tune Slider Controls click to select then use keyboard cursor keys.


Printing Help
Help & Settings

Tell a Friend
about this site!


↑ Remove Margins
If you've benefited from this free service please consider supporting
Please help us support Blue Dragon Children's Foundation