About
A stackable spiral stair segment: twelve wedge winders sweeping 180 degrees around a 0.24 m column, climbing 1.5 m, with balusters and a helical outer handrail. Dimensions 2.70 x 2.55 x 1.69 m (X x Y x Z). Origin on the column axis at the lower deck datum; the first winder starts on the +X axis and the sweep runs toward +Z. Metres, +Y up, +Z front, ground contact at y=0. Stack segments 1.5 m apart, rotating each by 180 degrees, to build a continuous spiral through any storey height. Connectors: bottom (run-end), top (run-end). Neutral greybox palette for prototyping before art exists. Static geometry; no skinned rig, collision or navigation data.
Use with an AI agent
Copy this prompt into your AI chat, then describe what you want to build with the asset.
Use the “Greybox spiral stair half-turn segment (Modular Greybox Architecture Kit)” asset in my project. Model: https://cdn.3dassets.dev/assets/22873/v1/model.glb Asset page: https://3dassets.dev/assets/modular-greybox-architecture-kit-stair-spiral-segment-aa7db880 Description: A stackable spiral stair segment: twelve wedge winders sweeping 180 degrees around a 0.24 m column, climbing 1.5 m, with balusters and a helical outer handrail. - Dimensions (X × Y × Z): 2.7 × 2.55 × 1.69 metres - Triangles: 1.1k - Animations: none - Licence: CC0 1.0 Universal (https://creativecommons.org/publicdomain/zero/1.0/) - Loading: Three.js GLTFLoader; no additional decoders required.
Also available as JSON, Markdown, or via the MCP server.
Import manually
Choose your framework, then copy the code into your project to load the asset.
import { GLTFLoader } from 'three/addons/loaders/GLTFLoader.js'
const loader = new GLTFLoader()
loader.load('https://cdn.3dassets.dev/assets/22873/v1/model.glb', (gltf) => {
scene.add(gltf.scene)
})Common questions
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Greybox spiral stair half-turn segment (Modular Greybox Architecture Kit)
A stackable spiral stair segment: twelve wedge winders sweeping 180 degrees around a 0.24 m column, climbing 1.5 m, with balusters and a helical outer handrail.
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