About
A 4 m joist run: seven 240 mm joists at 600 mm centres between two rim boards, with staggered solid blocking on the centre line. Dimensions 4.00 x 0.26 x 3.70 m (X x Y x Z). Origin at the centre of the bay on the underside of the joists; the joists span along Z. Metres, +Y up, +Z front, ground contact at y=0. Runs butt end to end along X at the run-end ports and carry the 4 m floor tile. Connectors: west (run-end), east (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 floor joist run 4 m (Modular Greybox Architecture Kit)” asset in my project. Model: https://cdn.3dassets.dev/assets/22921/v1/model.glb Asset page: https://3dassets.dev/assets/modular-greybox-architecture-kit-floor-joist-run-4m-7792c262 Description: A 4 m joist run: seven 240 mm joists at 600 mm centres between two rim boards, with staggered solid blocking on the centre line. - Dimensions (X × Y × Z): 4 × 0.26 × 3.7 metres - Triangles: 264 - 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/22921/v1/model.glb', (gltf) => {
scene.add(gltf.scene)
})Common questions
How do I use this model with my AI development tools?
How do I get started?
Which game engines and tools can I use this model with?
How do I import this model into Unity, Godot, Unreal or Blender?
Can I use this model in a commercial game, and do I need to credit anyone?
Can I load it from the CDN instead of downloading it?
Do I need Draco, Meshopt or KTX2 to load it?
Greybox floor joist run 4 m (Modular Greybox Architecture Kit)
A 4 m joist run: seven 240 mm joists at 600 mm centres between two rim boards, with staggered solid blocking on the centre line.
More in Buildings & Architecture
Meadow Courier Post Office
A compact teal roof post office with timber framing, parcel sign and letter slot for cozy delivery games.
Palisade Repair Brace (Fortified Compound Expansion)
Palisade Repair Brace: 2 × 1 × 0.16 m nominal survival truss assembly.
Signal Flag Mast (Fortified Compound Expansion)
Signal Flag Mast: 0.25 × 3 × 0.25 m nominal survival post assembly.
Gate Latch Post (Fortified Compound Expansion)
Gate Latch Post: 0.25 × 1.2 × 0.25 m nominal survival post assembly.
Courtyard Sentry Shelter (Fortified Compound Expansion)
Courtyard Sentry Shelter: 2 × 2.8 × 2 m nominal survival shelter assembly.
Perimeter Stair (Fortified Compound Expansion)
Perimeter Stair: 1 × 2.4 × 3 m nominal survival stairs assembly.
Perimeter Turn Platform (Fortified Compound Expansion)
Perimeter Turn Platform: 2 × 0.2 × 2 m nominal survival platform assembly.
Perimeter Catwalk (Fortified Compound Expansion)
Perimeter Catwalk: 2 × 0.2 × 1 m nominal survival platform assembly.
Checkpoint Roof (Fortified Compound Expansion)
Checkpoint Roof: 4 × 1 × 2 m nominal survival roof assembly.
Inspection Step (Fortified Compound Expansion)
Inspection Step: 1 × 0.6 × 1 m nominal survival stairs assembly.
Gatehouse Roof Walk (Fortified Compound Expansion)
Gatehouse Roof Walk: 4 × 0.3 × 2 m nominal survival platform assembly.
Gatehouse Rear Door (Fortified Compound Expansion)
Gatehouse Rear Door: 2 × 2.4 × 0.25 m nominal survival wall assembly.
Similar assets
Greybox floor tile 4 m (Modular Greybox Architecture Kit)
Square 4 m greybox floor tile, 0.2 m deep, with a dark perimeter shadow line and downstand edge ribs under the deck so the soffit reads from below.
Greybox floor tile 1 m (Modular Greybox Architecture Kit)
Quarter-cell 1 m greybox floor tile for closing awkward gaps and stepping a plan onto the 1 m sub-grid.
Greybox floor corner infill (Modular Greybox Architecture Kit)
L-shaped floor infill covering three quarters of a 4 m cell, for wrapping a floor plate around an external corner or a service core.
Greybox open grating floor panel 4 m (Modular Greybox Architecture Kit)
A 4 m open grating floor panel: steel edge frame with 24 bearer bars on a 0.16 m pitch, for plant decks, service voids and see-through walkway floors.
Greybox floor tile 2 m (Modular Greybox Architecture Kit)
Half-cell 2 m greybox floor tile matching the 4 m tile section, for offsetting a layout onto the 2 m sub-grid.
Connector cases (Garden Centre and Florist)
Aligned assemblies proving every connector type in the pack: a glasshouse run of gable, bays and door bay on the 2 m grid, a polytunnel run between two end frames, a canopy walkway run, a gutter and downpipe run at eaves height, a fence run through a gate, a benching run into...
Greybox floor tile with trapdoor cut (Modular Greybox Architecture Kit)
A 4 m floor tile with a 1.2 m rebated trapdoor cut and a recessed seating ledge, ready for a hatch lid or a ladder drop.
Greybox floor tile with 2 m stairwell hole (Modular Greybox Architecture Kit)
A 4 m floor tile with a 2 m square void and a 0.1 m safety kerb, used for stairwells, lift shafts and double-height voids.
Greybox sloped floor 15 degrees (Modular Greybox Architecture Kit)
A 4 m by 4 m floor plate sloped at 15 degrees, rising 1.07 m across the cell, with raised side kerbs. For garage ramps, drainage falls and stepped terrain blockouts.
Greybox floor edge trim 4 m (Modular Greybox Architecture Kit)
A 4 m floor edge nosing: an L section that caps an exposed slab edge with a proud safety nosing and a drip lip underneath.
Greybox floor hatch with pull ring (Modular Greybox Architecture Kit)
A 1.2 m square floor hatch lid: raised plate leaf, three hinge knuckles on one edge and a proud pull ring. Drops into the trapdoor cut rebate.
Bench run end panel (Garden Centre and Florist)
The panel that closes the end of a benching run: a timber frame with a boarded infill, a return leg and a blank header board for aisle signage.