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Straight stair flight with stringers and a comfort report

In your harnessBlender toolMIT

Generate a straight stair flight from rise, going and step count: treads with nosing, optional risers and sloped stringers cut at the floor, plus a report of pitch and the 2R + G step formula. Use it for buildings, decks and level blockouts.

Render of Straight stair flight with stringers and a comfort report
The render its check recorded in Blender 5.2.1, 192 by 192 pixels.

What it takes and gives

Operator
baltor.stairs_straight
Parameters
steps, rise, going, width, tread_thickness, nosing, risers, stringers and 2 more
Result
One mesh object named Straight Stairs; its custom property holds 2R + G.
Blender
4.2 or later
Axes
Blender Z up, -Y forward
Units
metres

Limits. The comfort report applies the common 2R + G rule of thumb (0.60 to 0.65 m) only; it is not a building code check, and codes differ by country and use. No handrail, landing or winder. Parts are separate closed solids in one mesh, touching but not merged. Verified in Blender 5.2.1; written for the 4.2 API.

Details

Kind
Blender tool
Engine
Blender 4.2 or later
Files
11 files, 113.5 KB
Licence
MIT
Declared effects
runs commands
Checked with
Blender 5.2.1, background (Cycles CPU for previews)
Checks
addon install and enable, operator runs with defaults, blender data matches core, addon disable unregisters, script mode runs, clean reopen addon file, clean reopen script file, gltf separate export, engine output clean
Techniques
Blondel step formula 2R + G, Closed prisms from planar profiles with outward winding, Sutherland-Hodgman clipping of the stringer outline against the floor plane
Tags
blender, procedural, stairs, architecture, mesh generator, building, stringer
Identity
library.supply.creative_originals.a97abe535e182ca1c346f790.3bd16772d33cf30d
Version
3bd16772d33cf30d67b4a7bab6adf85126c302341358420aa46dfdc26d316045

The version is the SHA-256 of the item your harness downloads; every file in it names its own checksum.

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