Free models · Game-ready GLB
Low poly
Every modern model below is a self-contained .glb under 25 MB that drops into three.js, Blender, Godot, Unity and Unreal, free to use and modify in commercial projects without attribution.
Load one straight from its CDN URL with a plain GLTFLoader, or take a whole themed set from the packs.
1,061 free GLB models
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.
Greybox quarter-turn stair (Modular Greybox Architecture Kit)
An L-shaped stair: a 1.5 m flight climbing toward +Z, a 1.5 m square quarter landing on legs, then a second flight turning out along +X to finish one storey up.
Greybox switchback landing 1.5 m (Modular Greybox Architecture Kit)
A 4 m square landing deck at 1.5 m on four braced legs with an orange edge kerb, for turning a ramp or stair run back on itself.
Greybox ramp 1.5 m rise (Modular Greybox Architecture Kit)
A half-storey 2 m wide ramp climbing 1.5 m over a 4 m run, for switchback runs and split-level blockouts.
Greybox straight stair 3 m rise (Modular Greybox Architecture Kit)
A straight 1.4 m wide flight climbing the full 3 m storey inside a 4 m bay: 16 risers, a sloped soffit, dark tread nosings and a two-rail guard on both sides.
Greybox half-landing dog-leg stair (Modular Greybox Architecture Kit)
A dog-leg stair core: two 1.5 m flights hanging off the near edge of a full-width half landing, so the climb turns through 180 degrees and returns to the same wall one storey up.
Greybox straight stair 1.5 m rise (Modular Greybox Architecture Kit)
A half-storey straight flight, 1.4 m wide, climbing 1.5 m over a 2 m run. Pairs with the switchback landing to build a split level.
Greybox wall tee junction (Modular Greybox Architecture Kit)
A 4 m wall with a 2 m spur running out at right angles from its mid point, for hanging a partition off a spine wall without a separate corner.
Greybox pilaster strip (Modular Greybox Architecture Kit)
A 0.4 m wide, 0.15 m deep pilaster strip applied to a wall face over the full storey, with a moulded base and capital, for articulating long blank runs.
Greybox wall inner corner cell (Modular Greybox Architecture Kit)
A full-cell inner corner: two 4 m wall legs on the west and south edges of one 4 m cell, mitred at the corner so a room encloses without a notch.
Greybox wall end cap (Modular Greybox Architecture Kit)
A 4 m wall terminating in a 0.4 m square end pilaster with its own base and cap, so an open wall run finishes cleanly instead of showing a raw edge.
Greybox pillar 0.4 m square (Modular Greybox Architecture Kit)
A free-standing 0.4 m square pillar over the full 3 m storey with a spread base and a spreading cap, for grid intersections and open-plan bays.
Greybox wall outer corner pilaster (Modular Greybox Architecture Kit)
A convex external corner: a 0.4 m square corner pilaster with two 2 m wall stubs running out along +X and +Z, for building external angles without a mitre.
Greybox wall with blind recess niche (Modular Greybox Architecture Kit)
A 4 m wall with a 1.2 m by 2.2 m blind niche recessed 0.12 m into the front face, backed by a dark panel. Lockers, vending, shrines and cover alcoves.
Greybox wall with single door opening (Modular Greybox Architecture Kit)
A 4 m wall with a 1.0 m by 2.1 m single door opening, lined on both faces. Takes the hinged, glazed or sliding door modules.
Greybox wall with service hatch opening (Modular Greybox Architecture Kit)
A 4 m wall with an 0.8 m square service hatch on a 0.6 m sill, for serveries, crawl-through routes and duct penetrations.
Greybox wall with clerestory band (Modular Greybox Architecture Kit)
A 4 m wall with a continuous 3.4 m by 0.5 m clerestory slot on a 2.2 m sill, for high daylight bands over corridors and warehouses.
Greybox wall with double door opening (Modular Greybox Architecture Kit)
A 4 m wall with a 2.2 m by 2.4 m double door opening and 0.9 m piers each side. Takes the double door, security gate or sliding pair.
Greybox wall with window opening (Modular Greybox Architecture Kit)
A 4 m wall with a 1.2 m square window opening on a 1.0 m sill, lined on both faces. Takes the mullion frame or the louvre panel.
Greybox wall with wide window opening (Modular Greybox Architecture Kit)
A 4 m wall with a 2.8 m by 1.4 m wide window opening on a 0.9 m sill, leaving 0.6 m piers. Shop fronts, offices and viewing galleries.
Greybox half-height wall 2 m (Modular Greybox Architecture Kit)
Half-bay 2 m half-height wall with the same coping section, for finishing a balustrade run on the 2 m sub-grid.
Greybox half-height wall 4 m (Modular Greybox Architecture Kit)
A 4 m by 1.2 m half-height wall with a wide coping cap: balustrades, counters, planters and waist-high cover in a blockout.
Greybox solid wall 2 m (Modular Greybox Architecture Kit)
Half-bay 2 m solid wall matching the 4 m wall section, for closing a run onto the 2 m sub-grid.
Greybox solid wall 1 m (Modular Greybox Architecture Kit)
Quarter-bay 1 m solid wall matching the 4 m wall section, for trimming a run onto the 1 m sub-grid.