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Steel Spine Stair Stringer Geometry Calculator - Imperial

Total Rise
Ideal Rise
Run
Tread Thickness Actual
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 at scale.

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Run

Steel spine stair plan calculator diagram with full dimensions

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

Mark-out
Running points up top of spine, to center of treads (for brackets)

Mark-out

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.




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Don't cut it, or cut it wet so there's NO DUST - Silicosis Sucks

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