3939.31556.55293.2
Loading the interactive model…
Interactive 3D model of Straight Staircase Assembly

Enclosures and housings

Straight Staircase Assembly

2 views
Bounding box
1556.5 × 3939.3 × 5293.2 mm
Engine
Precision B-rep
Parameters
13
Published
September 11, 2026

Download

Free to download and use. See the terms.

The prompt

Straight staircase 2 meters high, made from 6mm mild steel stringers, and 4mm mild steel treads. Add a handrail made from 12mm bar with 42mm tube on top. Drawing should outline individual parts with fixings included

Parameters

NameValueRange
Layout Gap100 mm20 – 300
Stair Height2000 mm1000 – 3000
Stair Width900 mm600 – 1200
Tread Depth250 mm200 – 350
Tread Count105 – 20
Stringer Thickness6 mm4 – 12
Stringer Width100 mm80 – 150
Tread Thickness4 mm3 – 8
Handrail Tube Diameter42 mm30 – 60
Post Diameter12 mm10 – 20
Post Count115 – 20
Bolt Diameter8 mm6 – 12
Fixing Plate Thickness6 mm4 – 10

Every value above is a live dimension. Open a model like this in the editor and each one becomes a slider you can drag before exporting.

Straight Staircase Assembly - Free CAD Model (STEP, STL) | TextoCAD